Evaluation the effect of posterior sub-capsular cataract on the refractive state of eye

Namrata Srivastava; P. N. Dwivedi; Syed Aswad

doi:10.18203/2320-6012.ijrms20232108

Authors

Namrata Srivastava Department of Optometry ERA University of Allied Health Science, Lucknow, Uttar Pradesh, India
P. N. Dwivedi Department of Ophthalmology Satya Eye Hospital and Research Institute, Kanpur, Uttar Pradesh, India
Syed Aswad Department of Optometry Capital University, Jharkhand, India

DOI:

https://doi.org/10.18203/2320-6012.ijrms20232108

Keywords:

Spherical myopia, High myopia, Posterior sub-capsular cataract, Astigmatism

Abstract

Background: Cataract refractive errors are caused by cataracts. It can go up to several dioptres (D). Correction of expected refractive errors during cataract surgery by altering the axial length measurement. Determine the effect of posterior sub-capsular cataracts on the eye's refractive status.

Methods: 112 patients with posterior sub-capsular cataracts participated in the study. The most common refractive error found in PSC was astigmatism, followed by myopia. The study was conducted at Angel Eye Institute of Ophthalmology; Kanpur U.P. The refractive status of eyes with posterior sub-capsular cataracts was determined using retinoscopy and subjective refraction. Biometry is done by A-scan and keratometer.

Results: A total of 112 patients were included in this study. Of these, 27 (26.5%) were males and 75 (73.5%) were females. The Patient’s age was about 60 years. The results showed that the refractive errors caused by posterior sub-capsular cataracts were mainly myopic astigmatism (97. 1%) and spherical myopia (2.9%), 0.16SD. The mean value of myopic astigmatism in patients with PSC was (1.7D, 15.7%), 0.93 SD and the mean value of spherical myopia was (0.1 D, 2.9%), 0.67 SD. Mean uncorrected visual acuity was 1 log MAR and 1.6 SD. The mean corrected visual acuity was 0.3 log MAR and 1.2 SD.

Conclusions: The most significant refractive error in PSC was astigmatism, followed by myopia. These findings may help clarify the type of refractive error in patients with PSC and the prediction of ocular vision outcome.

Metrics

Metrics Loading ...

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. Investigative Ophthalmology and Visual Science. 2013;54(7):4498-502.

Lim SA, Hwang J, Hwang KY, Chung SH. Objective assessment of nuclear cataract: Comparison of double-pass and Scheimpflug systems. Journal of Cataract and Refractive Surgery. 2014;40(5):716-21.

Asavada AR, Mamidipudi PR, Sharma PS. Morphology of and visual performance with posterior subcapsular cataract. Journal of Cataract and Refractive Surgery. 2004;30(10):2097-104.

Pan CW, Ramamurthy D, Saw SM. Worldwide prevalence and risk factors for myopia. Ophthalmic and Physiological Optics. 2012;32(1):3-16.

Chong EW, Mehta JS. High myopia and cataract surgery. Current Opinion in Ophthalmology. 2016;27(1):45-50.

Li H, Lim JH, Liu J. A computer-aided diagnosis system of nuclear cataracts. IEEE Transactions on Bio-Medical Engineering. 2010;H57(7):1690-8.

Sánchez-Galeana C, Smith RJ, Sanders DR, Rodríguez FX, Litwak S, et al. Lens opacities after posterior chamber phakic intraocular lens implantation. Ophthalmology. 2003;110(4):781-5.

Rönbeck M, Lundström M, Kugelberg M. Study of possible predictors associated with self-assessed visual function after cataract surgery. Ophthalmology. 2011;118(9):1732-8.

Lee CM, Afshari NA. The global state of cataract blindness. Current Opinion in Ophthalmology. 20147;28(1):98-103.

Hohberger B, Laemmer R, Adler W, Juenemann AG, Horn FK. Measuring contrast sensitivity in normal subjects with OPTEC® 6500: Influence of age and glare. Graefe’s Archive for Clinical and Experimental Ophthalmology. 2007;245(12):1805-14.

Fujiwara K, Ikeda Y, Murakami Y, Funatsu J, Nakatake S, Tachibana T, et al. Risk factors for posterior subcapsular cataract in retinitis pigmentosa. Investigative Ophthalmology and Visual Science. 2017;58(5):2534-7.

Abdellah MM, Mohamed Mostafa EM, Salama EH, Roshdy Mohamed E. Association of serum 25-hydroxyl vitamin D deficiency and age-related cataract: A case-control study. Journal of Ophthalmology. 2019;9312929.

Lu M, Taylor A, Chylack LT, Rogers G, Hankinson SE, Willett WC, et al. Dietary fat intake and early age-related lens opacities. American Journal of Clinical Nutrition. 2005;81(4):773-9.

Hugosson M, Ekström C. Prevalence and risk factors for age-related cataract in Sweden. Upsala Journal of Medical Sciences. 2020;125(4):311-5.

Zetterberg, M. Age-related eye disease and gender. Maturitas. 2016;83:19-26.

Kuroda T, Fujikado T, Maeda N, Oshika T, Hirohara Y, Mihashi T. Wavefront analysis of higher-order aberrations in patients with cataract. Journal of Cataract and Refractive Surgery. 2002a;28(3):438-44.

Kuroda T, Fujikado T, Maeda N, Oshika T, Hirohara Y, Mihashi T. Wavefront analysis in eyes with nuclear or cortical cataract. American Journal of Ophthalmology. 2002b;134(1):1-9.

Brown NA, Hill AR. Cataract: The relation between myopia and cataract morphology. British Journal of Ophthalmology. 1987;71(6):405-14.

Samarawickrama C, Wang JJ, Burlutsky G, Tan AG, Mitchell P. Nuclear cataract and myopic shift in refraction. American Journal of Ophthalmology. 2007;144(3):457-9.

Fotedar R, Mitchell P, Burlutsky G, Wang JJ. Relationship of 10-year change in refraction to nuclear cataract and axial length findings from an older population. Ophthalmology. 2008;115(8):1273-8.

Pesudovs K, Elliott DB. Refractive error changes in cortical, nuclear, and posterior subcapsular cataracts. British Journal of Ophthalmology. 2003;87(8):964-7.

Giuffrè G, Dardanoni G, Lodato G. A case–control study on risk factors for nuclear, cortical and posterior subcapsular cataract: The Casteldaccia Eye Study. Acta Ophthalmologica Scandinavica. 2005;83(5):567-73.

Wu SY, Yoo YJ, Nemesure B, Hennis A, Leske MC, Barbados Eye Studies Group. Nine-year refractive changes in the Barbados Eye Studies. Investigative Ophthalmology and Visual Science. 2005;46(11):4032-9.

Wensor M, McCarty CA, Taylor HR. Prevalence and risk factors of myopia in Victoria, Australia. Archives of Ophthalmology. 1999;117(5):658-63.

Dandona R, Dandona L, Naduvilath TJ, Srinivas M, McCarty CA, Rao GN. Refractive errors in an urban population in Southern India: The Andhra Pradesh Eye Disease Study. 1999.

Kuroda T, Fujikado T, Maeda N, Oshika T, Hirohara Y, Mihashi T. Wavefront analysis in eyes with nuclear or cortical cataract. American Journal of Ophthalmology. 2002;134(1):1-9.