Assessment of the effect of Posterior Sub-capsular cataract on the refractive status of the eye at the outpatient department of Hayatabad Medical Complex, Peshawar
Abstract
Introduction: Cataract-induced refractive change is the refraction change caused by a cataract. It can reach multiple diopters (D). It modifies expected refraction errors during cataract surgery by modifying axial length measurement.
Objective: To find the effect of the Posterior subcapsular Cataracts on the refractive status of the eye.
Methodology: A cross-sectional study was progressed in Eye OPD in Hayatabad Medical Complex, Peshawar. 102 patients having Posterior Subcapsular Cataracts were part of this study. The anterior segment was examined with a slit lamp for evaluation of the posterior subcapsular cataract. The refractive status of an eye having a posterior subcapsular cataract was determined using Retinoscopy and subjective refraction techniques. The axial length of the eye was measured using A-Scan. Keratometric reading was measured using Keratometer.
Results: A total of 102 patients were included in this study. Of these, 27 were males and 75 were females. The mean age was 60.5 years with 5.8SD. Results from the study showed refractive error due to Posterior Subcapsular Cataracts were mainly myopic astigmatism and spherical myopia with 0.16SD. Patients with PSCs had myopic astigmatism with a mean value of (1.7diopters, 15.7%) with 0.93SD and spherical myopia with a mean value of (0.1D, 2.9%) with 0.67SD.
Conclusion: The most common refractive error found in PSCs was Astigmatism followed by Myopia. These results may help to clarify the types of refractive errors in patients with PSCs and the prediction of visual outcomes with spectacles.
Downloads
References
Pan CW, Boey PY, Cheng CY, Saw SM, Tay WT, Wang JJ, et al. Myopia, axial length, and age-related cataract: the Singapore Malay eye study. Investig. Ophthalmol Vis Sci. 2013; 54(7):4498-502.
DOI: https://doi.org/10.1167/iovs.13-12271
Lim SA, Hwang J, Hwang KY, Chung SH. Objective assessment of nuclear cataract: comparison of double-pass and Scheimpflug systems. J Cataract Refract Surg. 2014; 40(5):716-21.
DOI: https://doi.org/10.1016/j.jcrs.2013.10.032
Vasavada AR, Mamidipudi PR, Sharma PS. Morphology of and visual performance with posterior subcapsular cataract. Journal of Cataract & Refractive Surgery. 2004; 30(10):2097-104.
DOI: https://doi.org/10.1016/j.jcrs.2004.02.076
Pan CW, Ramamurthy D, Saw SM. Worldwide prevalence and risk factors for myopia. Ophthalmic Physiol Opt. 2012; 32(1):3-16.
DOI: https://doi.org/10.1111/j.1475-1313.2011.00884.x
Chong EW, Mehta JS. High myopia and cataract surgery. Curr Opin Ophthalmol. 2016; 27(1):45-50.
DOI: https://doi.org/10.1097/ICU.0000000000000217
Li H, Lim JH, Liu J, Mitchell P, Tan AG, Wang JJ, et al. A computer-aided diagnosis system of nuclear cataracts. IEEE Trans Biomed Eng. 2010; 57(7):1690-8.
DOI: https://doi.org/10.1109/TBME.2010.2041454
Smith RJ, Sanders DR, Rodríguez FX, Litwak S, Montes M, Chayet AS. Lens opacities after posterior chamber phakic intraocular lens implantation. Ophthalmol. 2003; 110(4):781-5.
DOI: https://doi.org/10.1016/S0161-6420(02)01973-5
Rönbeck M, Lundström M, Kugelberg M. Study of possible predictors associated with self-assessed visual function after cataract surgery. Ophthalmol. 2011; 118(9):1732-8.
DOI: https://doi.org/10.1016/j.ophtha.2011.04.013
Lee CM, Afshari NA. The global state of cataract blindness. Curr Opin Ophthalmol. 2017; 28(1):98-103.
DOI: https://doi.org/10.1097/ICU.0000000000000340
Hohberger B, Laemmer R, Adler W, Juenemann AG, Horn FK. Measuring contrast sensitivity in normal subjects with OPTEC® 6500: influence of age and glare. Graefes Arch. Clin. Exp. Ophthalmol 2007; 245(12):1805-14.
DOI: https://doi.org/10.1007/s00417-007-0662-x
Fujiwara K, Ikeda Y, Murakami Y, Funatsu J, Nakatake S, Tachibana T, et al. Risk factors for posterior subcapsular cataract in retinitis pigmentosa. Investig Ophthalmol Vis Sci. 2017; 58(5):2534-7.
DOI: https://doi.org/10.1167/iovs.17-21612
Abdellah MM, Mohamed Mostafa E, Salama EH, Roshdy Mohamed E. Association of serum 25-hydroxyl vitamin D deficiency and age-related cataract: a case-control study. J Ophthalmol. 2019; 2019.
DOI: https://doi.org/10.1155/2019/9312929
Lu M, Taylor A, Chylack Jr LT, Rogers G, Hankinson SE, Willett WC, et al. Dietary fat intake and early age-related lens opacities. Am J Clin Nutr. 2005; 81(4):773-9.
DOI: https://doi.org/10.1093/ajcn/81.4.773
Hugosson M, Ekström C. Prevalence and risk factors for age-related cataract in Sweden. Ups. J. Med. Sci. 2020; 125(4):311-5.
DOI: https://doi.org/10.1080/03009734.2020.1802375
Zetterberg M. Age-related eye disease and gender. Maturitas. 2016; 83:19-26.
Copyright (c) 2022 Journal of Shifa Tameer-e-Millat University
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
Journal of Shifa Tameer-e-Millat University (JSTMU) is the owner of all copyright to any work published in the journal. Any material printed in JSTMU may not be reproduced without the permission of the editors or publisher. The Journal accepts only original material for publication with the understanding that except for abstracts, no part of the data has been published or will be submitted for publication elsewhere before appearing and/or decision in this journal. The Editorial Board makes every effort to ensure the accuracy and authenticity of material printed in the journal. However, conclusions and statements expressed are views of the authors and do not necessarily reflect the opinions of the Editorial Board or JSTMU.
Content of this journal is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
