Study on the role of simple myopic against-the-rule astigmatism in visual rehabilitation in monofocal pseudophakic patients

Richa Sharma; AK Khurana; Urmil Chawla; Nisha Bura; Aruj Khurana

doi:10.33545/26638266.2020.v2.i1a.25

Study on the role of simple myopic against-the-rule astigmatism in visual rehabilitation in monofocal pseudophakic patients

Author(s): Richa Sharma, AK Khurana, Urmil Chawla, Nisha Bura and Aruj Khurana

Abstract:
Introduction: Cataract surgery has been viewed as one of the most cost-effective health interventions with salvation of the disability-adjusted life years. The near visual acuity has always been a cause of concern following the cataract surgery as the patient loses accommodating power after it. This loss of reading ability can significantly reduce a patients' quality of life. Another important parameter that affects visual acuity of a person is contrast sensitivity. There is evidence in literature that these two aspects of vision are affected by surgically induced ATR in monofocal pseudophakic patients.

Objective: To compare the visual acuity and contrast sensitivity in monofocal pseudophakic patients with low myopia with and without low ATR astigmatism.

Materials and Methods: The cases selected were divided into study group and control group. Study group included 25 consecutive eyes (cases) with monofocal pseudophakia having spherical power from 0 D to-0.5 D with ATR astigmatism ranging from-0.5 D to-1.25 D. Control group comprised 25 consecutive eyes (controls) with monofocal pseudophakia having spherical power from 0 D to -0.5 D without astigmatism. Comparison was done between the groups based upon uncorrected distance visual acuity, uncorrected near visual acuity and contrast sensitivity.

Conclusion: The mean uncorrected distance visual acuity was almost equal in both the groups, therefore, the difference was not statistically significant with p=0.420. On the other hand, the uncorrected near visual acuity was better in the study group as compared to the control group and the difference was statistically significant with p <0.001. The contrast sensitivity was better in the control group than the study group and the difference was statistically significant too.

DOI: https://doi.org/10.33545/26638266.2020.v2.i1a.25

Pages: 17-22 | 1971 Views 822 Downloads

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