Dioptric power of intraocular lens and dilatation in patients with cataract
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Keywords
Intraocular, Eye, Cataract, Lenses, Pupil
Abstract
Background: Cataract surgery with intraocular lens implant is, nowadays, the most frequent surgical procedure in all the world. Its success depends on a lot of factors, one of the most important is the calculation of the exact dioptric power of intraocular lens.
Objective: To compare the calculation of dioptric power of intraocular lens with and without dilatation in patients with cataract.
Material and methods: Longitudinal study, the calculation of the dioptric power of the intraocular lens was determined in patients without and with pupillary dilation. The variables were age, gender, eye to study, keratometry, axial length, anterior chamber depth and dioptric power of the intraocular lens. Descriptive statistics and Student t test were performed.
Results: There were 37 patients, 23 females and 14 males. The average age was 68 + 7.87 years. Sixty-four eyes were studied, 30 were right and 34 left. Statistically, there was only significant difference in K2 of the ocular biometry between patients without and with pupillary dilation when obtaining a value of p < 0.05.
Conclusion: There are no changes in the calculation of the dioptric power of the Intraocular lens without and with pupillary dilation.
References
Turczynowska M, Kozlik-Nowakowska K, Gaca-Wysocka M, Gaca-Wysocka M, Grzybowsky A. Effective Ocular Biometry and Intraocular Lens Power Calculation. European Ophthalmic Review. 2016;10:94-100.
Liu YC, Wilkins M, Kim T, Malyugin B, Mehta JS. Cataracts. Lancet. 2017;390:1-7.
Palamar M, Alkan Z, Egrilmez S, Yagci A. Influences of tropicamide on anterior segment parameters with Pentacam in healthy individuals. J Ocul Pharmacol. Ther. 2013;29:349-52.
Arici C, Turk A, Ceylan OM, Kola M, Hurmeric V. Effects of 1% cyclopentolate hydrochloride on anterior segment parameters obtain with Pentacam In young adults. Arq Bras Oftalmol. 2014;77:228-32.
Palamar M, Egrilmez S, Uretmen O, Yagci A, Kose S. Influences of cyclopentolate hydrochloride on anterior segment parameters with Pentacam in children. Acta Ophthalmol. 2011; 89:461-5.
Mak H, Xu G, Leung CK. Imaging the iris with swept-source optical coherence tomography: relationship between iris volumen and primary angle closure. Ophthalmology. 2013; 120:2517-24.
Aptel F, Denis P. Optical coherence tomography quantitative analysis of iris volumen changes after pharmacologic midriasis. Ophthalmology. 2010;117: 3-10.
Marchini G, Babighian S, Tosi R, Perfetti S, Bonomi L. Comparative study of the effects of 2% ibopamine, 10% phenylephrine, and 1% tropicamide on the segment. Invest Ophthalmol Vis Sci. 2003;44:281-9.
Can E, Duran M, Cetinkaya T, Antürk N. The effect of pupil dilation on AL-scan biometric parameters. Int Ophthalmol. 2016;36:179-83.
Arriola-Villalobos P, Díaz-Valle D, Garzón N, Ruiz-Medrano J, Fernández-Perez C, Alejandre-Alba N, et al. Effect of pharmacologic pupil dilation on OLCR optical biometry measurements for IOL predictions. Eur J Ophthalmol. 2014; 24:53-7.
Bakbak B, Koktekir BE, Gedik S, Guzel H. The effect of pupil dilation biometric parameters of the Lenstar 900. Cornea. 2013;32:21-4.
Huang J, McAlinden C, Su B, Pesudovs K, Feng Y, Hua Y, et al. The effect of cyclopegia on Lenstar and the IOL Master biometry. Optom Vis Sci. 2012;89:1691-6.
Sheng H, Bottjer CA, Bullimore MA. Ocular component measurement using the Zeiss IOLMaster. Optom Vis Sci. 2004;81:27-34.
Cheung SW, Chan R, Cheng RCS, Cho P. Effect of cycloplegia on axial length and anterior chamber depth, measurements in children. Clin Exp Optom. 2009;92:476-81.
Turczynowska M, Kozlik-Nowakowska K, Gaca-Wysocka M, Gaca-Wysocka M, Grzybowsky A. Effective Ocular Biometry and Intraocular Lens Power Calculation. European Ophthalmic Review. 2016;10:94-100.
Heatley CJ, Whitefield LA, Hugkulstone CE. Effect of pupil dilation on the accuracy of the IOLMaster. J Cataract Refract Surg. 2002;28:1993-6.
Erkayhan GE, Adigüzel U. Effect of pupillary dilation on intraocular lens power calculation. Int Eye Sci. 2016;16: 1419-24.
Arriola-Villalobos P, Almendral-Gómez J, Garzón N, RuizMedrano J, Fernández-Pérez C, Martínez-de-la-Casa JM, et al. Effect of pharmacological pupil dilation on measurements and IOL power calculation made using the new swept-source optical coherence tomography-based optical biometer. J Fr Ophtalmol. 2016;39(10):859-5.
Kaya F, Kocak I, Aydin A, Baybora H, Koc H, Eliacik M. The Effect Of Pupil Dilation On Biometric Parameters Of The Aladdin Optical Biometry. International Journal Of Medical Science And Clinical Inventions. 2016;3:1902-07.
Khambhiphant B, Sasiwilasagorn S, Chatbunchachai N, Pongpirul K. Effect of pupillary dilation on Haigis formulacalculated intraocular lens power measurement y using optical biometry. Clin Ophthalmol. 2016:10:1405-10.
Rodriguez-Raton A, Jimenez-Alvarez M, Arteche-Limousin L, MediavillaPeña E, Larrucea-Martinez I. Effect of pupil dilation on biometry measurements with partial coherence interferometry and its effect on IOL power formula calculation. Eur J Ophthalmol. 2015;25:309-14.
Adler G, Shahar J, Kesner R, Rosenfeld E, Fischer N, Lowenstein A, Kurtz S. Effect of Pupil Size on Biometry Measurements Using the IOL Master. Am J Ophthalmol. 2015;159:940-4.
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