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Journal articles on the topic 'Intraocular pressure – Measurement'

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Published: 4 June 2021
Last updated: 1 February 2022

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1

Evans, Kevin. "Intraocular pressure measurement in children." Ophthalmic and Physiological Optics 13, no. 2 (April 1993): 219–21. http://dx.doi.org/10.1111/j.1475-1313.1993.tb00460.x.

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2

Liu, John H. K. "Diurnal Measurement of Intraocular Pressure." Journal of Glaucoma 10, Supplement 1 (October 2001): S39—S41. http://dx.doi.org/10.1097/00061198-200110001-00015.

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3

Prazak, D., R. Ziolkowski, D. Rosu, M. Schiebl, J. Rybar, P. Pavlasek, E. Sinir, and F. Pluhacek. "Metrology for intraocular pressure measurements." ACTA IMEKO 9, no. 5 (December 31, 2020): 353. http://dx.doi.org/10.21014/acta_imeko.v9i5.999.

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The World Health Organization reports glaucoma as the second leading cause of blindness and the leading cause of irreversible blindness. Intraocular hypertension is the most relevant and only treatable risk factor for the disease. Non-invasive intraocular-pressure (IOP) measurements, carried out using eye tonometers, are used to screen for the intraocular hypertension. A correct measurement of the IOP is essential in the prevention and the fight against glaucoma. The authors present their work towards ensuring on one side the accuracy of IOP measurements for contact and non-contact tonometers in the Central European region and obtaining a harmonization of the requirements for IOP metrology at national level.
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4

de Padua Soares Bezerra, Bernardo, Elsie Chan, Rahul Chakrabarti, and Rasik B. Vajpayee. "Intraocular pressure measurement after corneal transplantation." Survey of Ophthalmology 64, no. 5 (September 2019): 639–46. http://dx.doi.org/10.1016/j.survophthal.2019.02.011.

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5

Gillow, J. T., and R. Aggarwal. "Reducing bias during intraocular pressure measurement." British Journal of Ophthalmology 79, no. 11 (November 1, 1995): 1057–58. http://dx.doi.org/10.1136/bjo.79.11.1057-b.

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6

Wright, M. M., and A. L. Grajewski. "Measurement of intraocular pressure after epikeratophakia." British Journal of Ophthalmology 81, no. 6 (June 1, 1997): 448–51. http://dx.doi.org/10.1136/bjo.81.6.448.

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7

Schipper, Isac. "Photorefractive Keratectomy and Intraocular Pressure Measurement." Journal of Cataract & Refractive Surgery 26, no. 5 (May 2000): 631. http://dx.doi.org/10.1016/s0886-3350(00)00458-2.

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8

Agarwal, Tushar, Robit Saxena, and Rasik B. Vajpayee. "Intraocular Pressure Measurement After Refractive Surgery." Journal of Cataract & Refractive Surgery 28, no. 3 (March 2002): 384–85. http://dx.doi.org/10.1016/s0886-3350(02)01259-2.

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9

Munger, Rejean. "Intraocular Pressure Measurement After Refractive Surgery." Journal of Cataract & Refractive Surgery 28, no. 3 (March 2002): 385. http://dx.doi.org/10.1016/s0886-3350(02)01260-9.

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10

Leung, Christopher K. "Significance of Diurnal Intraocular Pressure Measurement." Asia-Pacific Journal of Ophthalmology 1, no. 2 (2012): 65–66. http://dx.doi.org/10.1097/apo.0b013e318249f7d6.

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11

Argento, Carlos, María José Cosentino, and María Angélica Moussalli. "Intraocular Pressure Measurement Following Hyperopic LASIK." Journal of Cataract & Refractive Surgery 24, no. 2 (February 1998): 145. http://dx.doi.org/10.1016/s0886-3350(98)80184-3.

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12

Li, KennethK W., VikkiW K. Ng, GeoffreyC H. Tang, TracyH T. Lai, and EmilyW H. Tang. "Intraocular pressure measurement during COVID pandemic." Indian Journal of Ophthalmology 68, no. 5 (2020): 950. http://dx.doi.org/10.4103/ijo.ijo_723_20.

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13

Koprowski, Robert, and Lei Tian. "Quantitative Assessment of the Impact of Blood Pulsation on Intraocular Pressure Measurement Results in Healthy Subjects." Journal of Ophthalmology 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/9678041.

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Background. Blood pulsation affects the results obtained using various medical devices in many different ways. Method. The paper proves the effect of blood pulsation on intraocular pressure measurements. Six measurements for each of the 10 healthy subjects were performed in various phases of blood pulsation. A total of 8400 corneal deformation images were recorded. The results of intraocular pressure measurements were related to the results of heartbeat phases measured with a pulse oximeter placed on the index finger of the subject’s left hand. Results. The correlation between the heartbeat phase measured with a pulse oximeter and intraocular pressure is 0.69±0.26 (p<0.05). The phase shift calculated for the maximum correlation is equal to 60±40° (p<0.05). When the moment of measuring intraocular pressure with an air-puff tonometer is not synchronized, the changes in IOP for the analysed group of subjects can vary in the range of ±2.31 mmHg (p<0.3). Conclusions. Blood pulsation has a statistically significant effect on the results of intraocular pressure measurement. For this reason, in modern ophthalmic devices, the measurement should be synchronized with the heartbeat phases. The paper proposes an additional method for synchronizing the time of pressure measurement with the blood pulsation phase.
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14

Kontadakis, George A., Alexandros Pennos, Iro Pentari, George D. Kymionis, Ioannis G. Pallikaris, and Harilaos Ginis. "Accuracy of dynamic contour tonometry, Goldmann applanation tonometry, and Tono-Pen XL in edematous corneas." Therapeutic Advances in Ophthalmology 12 (January 2020): 251584142092319. http://dx.doi.org/10.1177/2515841420923190.

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Purpose: To investigate in vitro the accuracy of dynamic contour tonometry, Goldmann applanation tonometry, and Tono-Pen XL in edematous corneas. Methods: Experimental study included 20 freshly enucleated porcine eyes. Epithelium was debrided, and eyes were divided in four groups. Groups were immersed in 35%, 40%, 50%, and 60% glycerin solutions for 3 hours. Subsequently, globes were mounted in a special holder, and their intraocular pressure was hydrostatically adjusted. Intraocular pressure was measured by means of dynamic contour tonometry, Goldmann applanation tonometry, and Tono-Pen XL while adjusting true intraocular pressure to 17, 33, and 50 mm Hg. Ultrasound pachymetry was performed. Results: Mean corneal thickness was 914.5 ± 33.3 μm (730–1015 μm). In true intraocular pressure of 33 mm Hg, Goldmann applanation tonometry and dynamic contour tonometry significantly underestimated true intraocular pressure (mean Goldmann applanation tonometry: 14.7 ± 4.8 mm Hg, p < 0.001, mean dynamic contour tonometry: 21.6 ± 6.8, p < 0.001). Tono-Pen XL also underestimated, but difference was not statistically significant (Tono-Pen XL: 27.9 ± 9.7, p = 0.064). In true intraocular pressure of 50 mm Hg, all three methods significantly underestimated (Goldmann applanation tonometry: 17.6 ± 5.3 mm Hg, p < 0.001, dynamic contour tonometry: 26.8 ± 6.3 mm Hg, p < 0.001, Tono-Pen XL: 35.6 ± 8.4 mm Hg, p < 0.001). The error in measured intraocular pressure for each method (true minus measured intraocular pressure) was significantly correlated to true intraocular pressure ( p < 0.001). The intraocular pressure measurements of each eye taken under true intraocular pressure of 17 and 33 mm Hg with the three methods were correlated to each other. Measurements taken under intraocular pressure of 50 mmHg were not correlated to each other. Corneal thickness was not correlated to intraocular pressure measurement. Conclusion: Goldmann applanation tonometry, dynamic contour tonometry, and Tono-Pen XL underestimate intraocular pressure when measured under edematous conditions. Tono-Pen XL showed better accuracy, especially in lower true intraocular pressure. The measurement error increases when true intraocular pressure increases in all three methods.
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15

Ece, Ilhan, Celalettin Vatansev, Tevfik Kucukkartallar, Ahmet Tekin, Adil Kartal, and Mehmet Okka. "The Increase of Intra-Abdominal Pressure Can Affect Intraocular Pressure." BioMed Research International 2015 (2015): 1–4. http://dx.doi.org/10.1155/2015/986895.

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Objective. This study aims to explore the usage of intraocular pressure measurements as the early indicator of the increase in intra-abdominal pressure.Methods. In this prospective study, 40 patients undergoing elective surgery were included. Patients were divided into four groups of 10 patients. The control group (Group C) was not subjected to laparoscopic intervention. Laparoscopic surgery was, respectively, performed with an intra-abdominal pressure of 9, 12, and 15 mmHg in Groups L (low), M (medium), and H (high pressure). Intraocular pressure was measured binocularly in each patient at three different times (before, during, and end of surgery) using a contact tonometer.Results. Patients’ gender, age, body mass index (BMI), American Society of Anesthesiology (ASA) class, and operative times were not different among the groups. No complications occurred with either the surgery or measurement of intraocular pressure. Intubation was associated with a severe rise in IOP(P<0.05). An increase in intraocular pressure was seen in groups M and H(P<0.05).Conclusion. Intraocular pressure was increased in the groups with an intra-abdominal pressure of 12 mmHg or more. Measuring the intraocular pressure might be a useful method to estimate the intra-abdominal pressure. This trial is registered withNCT02319213.
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16

Davidson, Iain, and Andrew Tatham. "24-hour intraocular pressure measurement in glaucoma." Journal of Case Reports and Images in Medicine 2 (2016): 1. http://dx.doi.org/10.5348/z09-2016-26-cl-19.

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17

Gandhi, Parag D., Rabia Gürses-Özden, Jeffrey M. Liebmann, and Robert Ritch. "Attempted eyelid closure affects intraocular pressure measurement." American Journal of Ophthalmology 131, no. 4 (April 2001): 417–20. http://dx.doi.org/10.1016/s0002-9394(00)00802-3.

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18

Del Priore, Lucian V., Ronald G. Michels, Mirta A. Nunez, William Smiddy, Bert M. Glaser, and Serge de Bustros. "Intraocular Pressure Measurement after Pars Plana Vitrectomy." Ophthalmology 96, no. 9 (September 1989): 1353–56. http://dx.doi.org/10.1016/s0161-6420(89)32716-3.

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19

Chu, Edward R., Eun K. Kim, Jose M. Gonzalez, Min H. Ko, Elaine C. Liew, and James CH Tan. "Intraocular pressure measurement in acepromazine-sedated mice." Clinical & Experimental Ophthalmology 42, no. 4 (July 15, 2013): 395–97. http://dx.doi.org/10.1111/ceo.12157.

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20

Achiron, Asaf, Khamis Arbid, Romi Noy Achiron, and Elisha Bartov. "Intraocular pressure measurement in the emergency room." Postgraduate Medical Journal 90, no. 1068 (September 1, 2014): 603–4. http://dx.doi.org/10.1136/postgradmedj-2014-132688.

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21

Todani, Amit, Irmgard Behlau, Mark A. Fava, Fabiano Cade, Daniel G. Cherfan, Fouad R. Zakka, Frederick A. Jakobiec, Yuqing Gao, Claes H. Dohlman, and Samir A. Melki. "Intraocular Pressure Measurement by Radio Wave Telemetry." Investigative Opthalmology & Visual Science 52, no. 13 (December 20, 2011): 9573. http://dx.doi.org/10.1167/iovs.11-7878.

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22

Cabrera, Camilo L., Leslie A. Wagner, M. Anthony Schork, David F. Bohrand, and Bruce E. Cohan. "Intraocular pressure measurement in the conscious rat." Acta Ophthalmologica Scandinavica 77, no. 1 (February 1999): 33–36. http://dx.doi.org/10.1034/j.1600-0420.1999.770108.x.

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23

Reitsamer, Herbert A., Jeffrey W. Kiel, Joseph M. Harrison, Nancy L. Ransom, and Stuart J. McKinnon. "Tonopen measurement of intraocular pressure in mice." Experimental Eye Research 78, no. 4 (April 2004): 799–804. http://dx.doi.org/10.1016/j.exer.2003.11.018.

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24

Kamppeter, Bernd A., and Jost B. Jonas. "Dynamic Contour Tonometry for Intraocular Pressure Measurement." American Journal of Ophthalmology 140, no. 2 (August 2005): 318–20. http://dx.doi.org/10.1016/j.ajo.2005.01.039.

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25

Kaplan, Mehmet, Ozge Ozcan Abacýoglu, Fethi Yavuz, Gizem Ilgýn Kaplan, Betül Düzen, Nurbanu Bursa, and Ferhat Zorlu. "Intraocular pressure predicts premature coronary atherosclerosis." Revista da Associação Médica Brasileira 66, no. 12 (December 2020): 1707–11. http://dx.doi.org/10.1590/1806-9282.66.12.1707.

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SUMMARY OBJECTIVE: The aim of this study was to investigate the association between intraocular pressure (IOP) and premature atherosclerotic coronary artery disease (PACAD) by comparing central corneal thicknesses (CCTs) measurements. METHODS: One hundred-eighty-six subjects were enrolled in this cross-sectional study, 100 in the PACAD group and 86 in the control group. All participants underwent a physical examination and routine biochemical tests. Ophthalmological examinations, including IOP and CCTs measurements, were performed for each subject. Additionally, pulse wave velocity measurements were obtained and recorded. RESULTS: Participants with PACAD showed significantly higher IOP values than those without atherosclerosis (p = 0.001), and there was no statistically significant difference between the groups in terms of CCT (p = 0.343). Also, pulse wave velocity (PWV) values were statistically significantly higher in the PACAD group (p = 0.001). High IOP was not significantly associated with metabolic syndrome parameters (p > 0.05). CONCLUSIONS: A relationship was found between PACAD and IOP, but CCTs were not associated with PACAD. The IOP measurement is affected by CCT; therefore, CCT is used to correct IOP values. To our knowledge, this is the first study to report a positive relationship between PACAD and IOP based on CCTs measurements.
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26

Cicik, Erdogan, Rengin Yildirim, Ceyhun Arici, Funda Dikkaya, and Osman Sevki Arslan. "Effect of Hemifacial Spasm on Intraocular Pressure Measurement." Journal of Ophthalmology 2018 (2018): 1–4. http://dx.doi.org/10.1155/2018/3621215.

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Purpose. To evaluate the effect of hemifacial spasm (HFS) on intraocular pressure (IOP) measurement. Methods. Twenty-four consecutive patients with HFS and 25 age- and gender-matched randomly selected eyes of healthy volunteers underwent corneal pachymetry and IOP measurements using Goldmann applanation tonometer (GAT) and noncontact tonometer (NCT). IOP measurements were performed before (during HFS) and 2 weeks after Botox injections in HFS patients and in healthy volunteers without Botox injections. Results. There was no statistical difference between involved eye side and uninvolved eye side of HFS patients in measured central corneal thickness. Similarly, no difference was found between involved eye side of HFS patients and controls. There were no statistically significant differences comparing IOP values before treatment and levels measured at 2 weeks of Botox injections, either with GAT (p=0.33, 0.11) or NCT (p=0.80, 0.43) devices in the involved eyes and uninvolved eyes of patients with HFS, respectively. There were also no significant differences in these parameters (GAT (p=0.63) and NCT (p=0.54)) in controls. Conclusions. Contractions in facial muscles may not lead to significant increase in IOP in HFS patients. This result may help clinical decision making in the treatment of glaucoma patients with HFS. This trial is registered with NCT03390803.
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Bozic, Marija, Paraskeva Hentova-Sencanin, Aleksandra Brankovic, Ivan Marjanovic, Djordjevic Jocic, and Ivan Sencanin. "Effect of a tight necktie on intraocular pressure." Medical review 65, no. 1-2 (2012): 13–17. http://dx.doi.org/10.2298/mpns1202013b.

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Introduction. Any factor causing constriction of the neck may lead to an increase in intraocular pressure. A tight necktie may result in increasing intraocular pressure, which could lead to an erroneous diagnosis and treatment of ocular hypertension or even glaucoma. This study was aimed at evaluating the effect of a tight necktie on intraocular pressure measurement using Goldmann applanation tonometry. Material and Methods. This study included forty eyes of 20 patients with primary open angle glaucoma and 20 healthy controls (all male). Intraocular pressure was measured without a necktie, 3 minutes after placing a tight necktie and 3 minutes after loosening it. Student?s t-test was used to analyze the data between two groups. The intraocular pressure measurements were subjected to paired t - test. The value p < 0.05 was considered statistically significant. A possible correlation between the age of subjects and intraocular pressure values was analyzed using linear regression (Pearson?). Results. A statistically significant difference was found in intraocular pressure readings in all three measurements between two tested groups (p<0.05). When analyzed within groups, statistical significance in intraocular pressure readings was found after loosening the necktie (<0.05). No correlation between the age of subjects and increased intraocular pressure was found in either tested group of subjects after the necktie had been tightened (r2=0.006, p=0.70 for primary open angle patients, r2=0.07, p=0.22 for healthy controls). Conclusion. Wearing a tight necktie for a limited period of time during the day could be considered as a possible risk factor for glaucoma development.
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28

Esmael, Amanne, Yomna M. Ismail, Abdelrahman M. Elhusseiny, Alaa E. Fayed, and Hala M. Elhilali. "Agreement profiles for rebound and applanation tonometry in normal and glaucomatous children." European Journal of Ophthalmology 29, no. 4 (September 4, 2018): 379–85. http://dx.doi.org/10.1177/1120672118795060.

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Objectives: To investigate agreement between intraocular pressure measurements by the rebound tonometer and handheld Perkins applanation tonometer in children with and without primary congenital glaucoma and test agreement with intraocular pressure and age variations. Materials and methods: A prospective non-interventional comparative study done on 223 eyes of 115 children, 161 normal eyes, and 62 eyes with primary congenital glaucoma. Intraocular pressure measurements were obtained in the upright position by rebound tonometer first, followed by installation of topical anesthetic eye drops (benoxinate), then measured by Perkins applanation tonometer. Results: For all eyes, mean difference between Perkins applanation tonometer and rebound tonometer was −0.59 ± 2.59 mmHg, p = 0.001. Regression analysis with (r) = 0.9, (r2) = 0.79, and p < 0.001. In primary congenital glaucoma: there was a mean difference of −.79 ± 2.82 (p = 0.032), a good correlation with (r) = 0.94, (r2) = 0.87%, and 95% level of agreement: –6.34 to +4.76. In normal eyes: mean difference was −.52 ± 2.5 (p = 0.01), correlation: (r) = 0.8, (r2) = 0.64, and p = 0.001. The 95% level of agreement −5.41 and +4.36 mmHg. In intraocular pressure ⩽ 15 mmHg: mean difference −0.89 ± 2.15 mmHg, 95% level of agreement between −5.1 and +3.32 mmHg, p < 0.001. In intraocular pressure >15 mmHg: mean difference was 0.04 ± 3.28 mmHg, 95% level of agreement −6.38 and +6.46 mmHg, p = 0.914. Conclusion: There is a good correlation between rebound tonometer and Perkins applanation tonometer in children with and without primary congenital glaucoma; however, rebound tonometer overestimates the intraocular pressure, and in intraocular pressure >15 mmHg there is less agreement between the two devices. Hence, in higher intraocular pressure measurement caution should be taken when interpreting rebound tonometer readings, and a confirmatory measurement using Perkins applanation tonometer is advised.
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29

Stojanov, Oliver, Edita Stokic, Olivera Sveljo, and Nada Naumovic. "The influence of retrobulbar adipose tissue volume upon intraocular pressure in obesity." Vojnosanitetski pregled 70, no. 5 (2013): 469–76. http://dx.doi.org/10.2298/vsp1305469s.

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Background/Aim. It is known that glaucoma is associated with elevated intraocular pressure and obesity, yet the precise etiology remains unclear. The aim of this study was to determine whether there is a potential causality between the volume of retrobulbar adipose tissue and the level of intraocular pressure in obese subjects compared with non-obese. Methods. A total of 100 subjects were divided according to the body mass index (BMI), into two groups: normal weight (n = 50, BMI = 18-24.9 kg/m2) and obese (n = 50, BMI ? 30 kg/m2) subjects. Anthropometric measurements, body composition analysis, measurement of intraocular pressure, as well as magnetic resonance imaging (MRI) of the head at the level of the optic nerve, and the derived retrobulbar adipose tissue volume, were undertaken in all subjects. Results. The obese subjects, as compared with normal weight ones, had a significantly higher mean retrobulbar adipose tissue volume (6.23 cm3 vs 4.85 cm3, p < 0.01) and intraocular pressure (15.96 mmHg vs 12.99 mmHg, p < 0.01). Furthermore, intraocular pressure correlated positively with retrobulbar adipose tissue volume. Conclusion. In obese people, elevated intraocular pressure may be caused by changes in ocular blood flow, affected by the physical pressure exerted by higher retrobulbar adiposity, and/or by internal vascular changes secondary to complications of obesity. These findings indicate the need for more frequent measurement of intraocular pressure in obese individuals to earlier detect glaucoma, and in so doing prevent irreversible blindness.
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30

EROL, H., and M. ARICAN. "The investigation of xylazine, detomidine, isoflurane and sevoflurane anaesthetic combinations on clinical, laboratory and cardiovascular parameters and on intraocular pressure in horses." Journal of the Hellenic Veterinary Medical Society 70, no. 1 (April 24, 2019): 1401. http://dx.doi.org/10.12681/jhvms.20348.

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The aim of this study was to investigate the effects of anaesthetic combinations of xylazine, detomidine, sevoflurane and isoflurane on clinical, laboratory, and cardiovascular parameters as well as their effects on intraocular pressure in horses. Twenty-four mixed-breed horses (twelve male and twelve female) were used for this study. The horses were allocated into four groups (six horses in each group): XS (xylazine-sevoflurane), XI (xylazine-isoflurane), DS (detomidine-sevoflurane) and DI (detomidine-isoflurane). Clinical evaluations, hematological, biochemical tests and measurement of intraocular pressure were done before (0th), during (5th, 15th and 30th min) and at the end of anaesthesia (60th min). The detected differences were statistically evaluated. In conclusion, this study shows that the anaesthetic combinations of sevoflurane and isoflurane with xylazine and detomidine provided safe and suitable anaesthesia in horses. Our study did not reveal any statistical differences in intraocular pressure measurements. However, it should be noted that intraocular pressures were measured with the animals lying down and our results do not rule out changes in intraocular pressures in a standing position. We concluded that these anaesthesia protocols are suitable for ophthalmic surgery.
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31

Fan, Dorothy S. P., Thomas Y. H. Chiu, Nathan Congdon, Jeffrey C. W. Chan, Eva Y. Y. Cheung, and Dennis S. C. Lam. "Measurement of Intraocular Pressure with Pressure Phosphene Tonometry in Children." Journal of Pediatric Ophthalmology & Strabismus 48, no. 3 (June 23, 2010): 167–73. http://dx.doi.org/10.3928/01913913-20100618-02.

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32

Stockman, J. A. "Measurement of Intraocular Pressure With Pressure Phosphene Tonometry in Children." Yearbook of Pediatrics 2013 (January 2013): 536–38. http://dx.doi.org/10.1016/j.yped.2011.09.023.

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33

Syam, P. P. "Importance of early morning intraocular pressure recording for measurement of diurnal variation of intraocular pressure." British Journal of Ophthalmology 89, no. 7 (July 1, 2005): 926–27. http://dx.doi.org/10.1136/bjo.2004.052787.

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34

Tugeeva, Elina E., and Vladimir V. Brzheskiy. "Features of measurement of intraocular pressure in children." Ophthalmology journal 9, no. 3 (September 15, 2016): 23–31. http://dx.doi.org/10.17816/ov9323-31.

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This review discusses the results of various studies conducted in recent years on the comparison of modern methods of measuring intraocular pressure (IOP) in children: pneumotonometry, Maklakov applanation tonometry, and tonometry using Perkins tonometer, Goldmann tonometer, Icare tonometer, Ocular Response Analyzer, TonoPen handheld tonometer, transpalpebral tonometer TIOP01, or a dynamic contour Pascal tonometer. This study discusses the advantages and disadvantages of different methods of measurement of IOP in children, including the evaluation of patients with fibrous lens capsules that might affect the measurement of IOP and an analysis of the characteristics of evaluation of IOP in children with congenital glaucoma.
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35

Campos, T. V. O., S. Jacobovitz, H. G. Almeida, A. R. Massensini, and M. F. D. Moraes. "Computerized invasive measurement of time-dependent intraocular pressure." Brazilian Journal of Medical and Biological Research 39, no. 9 (September 2006): 1249–53. http://dx.doi.org/10.1590/s0100-879x2006000900013.

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36

Jóhannesson, Gauti, Per Hallberg, Anders Eklund, Timo Koskela, and Christina Lindén. "Change in Intraocular Pressure Measurement After Myopic LASEK." Journal of Glaucoma 21, no. 4 (2012): 255–59. http://dx.doi.org/10.1097/ijg.0b013e31820719c8.

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37

Sawamura, Mark H. "Factors influencing the accuracy of intraocular pressure measurement." Optometry - Journal of the American Optometric Association 82, no. 8 (August 2011): 455. http://dx.doi.org/10.1016/j.optm.2011.06.005.

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38

Myers, Jonathan S., and Scott J. Fudemberg. "Twenty-four-hour intraocular pressure measurement in glaucoma." Clinical & Experimental Ophthalmology 43, no. 9 (December 2015): 782–83. http://dx.doi.org/10.1111/ceo.12674.

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39

F Jarade, Elias, Françoise C Abi Nader, and Khaled F Tabbara. "Intraocular Pressure Measurement After Hyperopic and Myopic LASIK." Journal of Refractive Surgery 21, no. 4 (July 1, 2005): 408–10. http://dx.doi.org/10.3928/1081-597x-20050701-21.

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40

Pronin, Savva, Lyndsay Brown, Roly Megaw, and Andrew J. Tatham. "Measurement of Intraocular Pressure by Patients With Glaucoma." JAMA Ophthalmology 135, no. 10 (October 1, 2017): 1030. http://dx.doi.org/10.1001/jamaophthalmol.2017.3151.

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Nessim, Maged, Ioannis Kyprianou, Vinod Kumar, and Philip I. Murray. "Anterior Scleritis, Scleral Thinning, and Intraocular Pressure Measurement." Ocular Immunology and Inflammation 13, no. 6 (January 2005): 455–57. http://dx.doi.org/10.1080/09273940490912344.

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Stamper, Robert L. "A History of Intraocular Pressure and Its Measurement." Optometry and Vision Science 88, no. 1 (January 2011): E16—E28. http://dx.doi.org/10.1097/opx.0b013e318205a4e7.

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Klimashov, B. M. "Contactless Measurement of Tolerant and Intolerant Intraocular Pressure." Biomedical Engineering 45, no. 3 (August 23, 2011): 107–9. http://dx.doi.org/10.1007/s10527-011-9221-1.

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Hernández-Verdejo, José L., and Miguel A. Teus. "Measurement of Intraocular Pressure During Corneal Flap Preparation." Journal of Refractive Surgery 28, no. 1 (January 2012): 11. http://dx.doi.org/10.3928/1081597x-20120101-04.

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45

Beckman, Kenneth A., Jodi I. Luchs, Mark S. Milner, and Richard W. Yee. "Changes in preoperative corneal measurements following same-day intraocular pressure testing with rebound tonometry." Therapeutic Advances in Ophthalmology 12 (January 2020): 251584141989207. http://dx.doi.org/10.1177/2515841419892070.

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Purpose: To evaluate the extent to which rebound tonometry affects corneal surface properties and preoperative corneal measurements. Setting: Four cornea specialty private practices. Design: Prospective case series. Methods: Visual acuity testing, corneal topography, keratometry, and grading of corneal staining were performed on both eyes of 60 randomly selected, previously scheduled patients. Technicians then performed rebound tonometry on one randomly selected eye only. Immediately following, intraocular pressure measurement, corneal topography, keratometry, and corneal staining were repeated on both eyes. Results: None of the 60 study eyes developed increased staining scores following intraocular pressure testing with the Icare ic100. For corneal staining, mean keratometry, and total corneal cylinder, no statistically significant difference was found from the first measurement to the second measurement between the study eyes and control eyes. Conclusion: Rebound tonometry with the Icare ic100 may be used on any patient at any time during the exam without affecting the results of other tests, allowing clinicians to test intraocular pressure prior to preoperative cataract or refractive surgery measurements on the same day. This may allow for significant improvement in patient flow in the office and save patients from the cost and time of extra visits.
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Phan, Alex, Phuong Truong, Julian Trumpp, and Frank E. Talke. "Design of an Optical Pressure Measurement System for Intraocular Pressure Monitoring." IEEE Sensors Journal 18, no. 1 (January 1, 2018): 61–68. http://dx.doi.org/10.1109/jsen.2017.2767539.

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Levin, Ariana M., Daniel Vezina, and Barbara M. Wirostko. "Home-Based Intraocular Pressure Measurements: Tracing a Parallel with Out-of-Office Blood Pressure Measurement." Ophthalmology Glaucoma 4, no. 3 (May 2021): 235–37. http://dx.doi.org/10.1016/j.ogla.2021.03.001.

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48

Cvenkel, Barbara, Makedonka Atanasovska Velkovska, and Vesna Dimovska Jordanova. "Self-measurement with Icare HOME tonometer, patients’ feasibility and acceptability." European Journal of Ophthalmology 30, no. 2 (January 11, 2019): 258–63. http://dx.doi.org/10.1177/1120672118823124.

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Purpose: To evaluate and compare the accuracy of self-measurement of intraocular pressure using Icare Home rebound tonometer with Goldmann applanation tonometer and assess acceptability of self-tonometry in patients with glaucoma and ocular hypertension. Methods: In the study, 117 subjects were trained to use Icare Home for self-measurement. Icare Home tonometer readings were compared with Goldmann applanation tonometer, including one eye per patient. Agreement between the two methods of measurement was evaluated by Bland and Altmann analysis. Questionnaire was used to evaluate patients’ perception of self-tonometry. Results: One hundred and three out of 117 patients (88%) were able to measure their own intraocular pressure and 96 (82%) fulfilled the requirements for certification. The mean (SD) difference Goldmann applanation tonometer minus Icare Home was 1.2 (2.4) mmHg (95% limits of agreement, –3.4 to 5.9 mmHg). The magnitude of bias between the two methods depended on central corneal thickness, with greater bias at central corneal thickness <500 µm. In 65 out of 96 subjects (67.7%), Icare Home results were within 2 mmHg of the Goldmann applanation tonometer. Seventy-three out of 93 (78.5%) felt that self-tonometry was easy to use and 75 patients (80.6%) responded that they would use the device at home. Conclusion: Icare Home tonometry tends to slightly underestimate intraocular pressure compared to Goldmann applanation tonometer. Most patients were able to perform self-tonometry and found it acceptable for home use. Measurements using rebound self-tonometry could improve the quality of intraocular pressure data and optimize treatment regimen.
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Sergienko, N., and I. Shargorodskaya. "Intraocular pressure as a factor affecting corneal hysteresis measurement." Oftalmologicheskii Zhurnal 31, no. 3 (May 11, 2011): 13–15. http://dx.doi.org/10.31288/oftalmolzh201131315.

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Pigatto, João Antonio Tadeu, Fabiana Quartiero Pereira, Luciane Albuquerque, Luis Felipe Dutra Corrêa, Bernardo Stefano Bercht, Paula Stieven Hünning, Alberto Andre Ribeiro Silva, and Luciana Vicente Rosa Pacicco de Freitas. "Intraocular pressure measurement in sheep using an applanation tonometer." Revista Ceres 58, no. 6 (December 2011): 685–89. http://dx.doi.org/10.1590/s0034-737x2011000600002.

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The purpose of this study was to evaluate and establish the mean values of IOP in healthy adult sheep using an applanation tonometer. Information on age, sex, and breed was obtained for all animals included in this study. Twenty five healthy sheep (Ovis aries), of the same breed (Texel), male or female, with three years of age, received an ophthalmic examination in both eyes, including pupillary reflexes, Schirmer tear test, slit lamp biomicroscopy, and fluorescein staining. For all ophthalmic testing, animals were gently physically restrained, with no pressure in the jugular area and the eyelids were carefully open. IOP was measured by applanation tonometry (Tonopen XL). The same examiner performed the tonometry; measurements were taken three times for each eye, and their average was recorded as the IOP of the animal. Statistical analysis was performed using paired t-test and values of P < 0.05 were considered significant. The mean intraocular pressure in the whole group of 50 eyes was of 16.36 +/- 2.19 mm Hg. The mean (SD) IOP in the right eye was of 15.96 +/- 2.02 mm Hg, while the mean (SD) IOP in the left eye was of 16.76 +/- 2.32 mm Hg. Significant differences in IOP were not found between right and left eyes. The applanation tonometer was adequate for measuring the intraocular pressure in sheep. Reference data will assist in diagnosing testing for ophthalmic disease in sheep, as¹ well as promote further studies in this area.
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