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Site of Incision and Corneal Astigmatism in Conventional SICS versus Phacoemulsification

  • Original Article
  • Published:
Annals of Ophthalmology

Abstract

Introduction

High astigmatism is an important cause of poor uncorrected visual acuity after cataract surgery.

Purpose

The aim of the study is to compare the astigmatism induced by a superior and temporal incision in manual SICS, and to compare the astigmatism induced by clear corneal incision versus scleral tunnel in phacoemulsification surgery.

Methods

A total of 64 eyes of 64 patients (34 male/30 female) with a mean age of 62.10 years (range 45–82 years) were included in the study. The cases were randomly divided into two groups. One group (Group I) had undergone manual SICS and the other group (Group II) had undergone phacoemulsification. The manual SICS group patients were randomly allotted into two subgroups depending on the site of incision. Group Ia received superior incision while group Ib received temporal incision. The Phacoemulsification group (Group II) patients were randomly divided into two groups depending on the location of the incision. Group IIa received clear corneal incision and group IIb received scleral pocket incision. Informed consent was obtained from all the patients undergoing study. Surgically induced astigmatism is calculated by the substraction method.

Results and Conclusion

We found significantly against the rule shift in stigmatism in the phacoemulsification group and the manual SICS superior incision group. The manual SICS group with temporal incision (Ib) had with-the-rule shift in astigmatism.

Synopsis

At 90 days, conventional SICS superior incisions gave 1.92 ± 0.53 D against the rule and temporal incisions 1.57 ± 0.24 D with the rule astigmatism. Phacoemulsification clear corneal incisions showed 1.08 ± 0.36 D and scleral pocket 1.23 ± 0.71 D astigmatism.

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Authors and Affiliations

  1. Department of Ophthalmology, IMS, Banaras Hindu University, Varanasi, India

    Bhaskar Reddy MS, Amit Raj MBBS & Virendar Pratap Singh MS

  2. Banaras Hindu University, Room No.10, New Doctors’ Hostel, Varanasi, 221005, India

    Amit Raj MBBS

Authors
  1. Bhaskar Reddy MS
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  2. Amit Raj MBBS
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  3. Virendar Pratap Singh MS
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Corresponding author

Correspondence to Amit Raj MBBS.

Additional information

Dr. Reddy is a Senior Resident, Dr. Raj is a Resident, and Dr. Singh is a Reader in the Department of Ophthalmology, Institute of Medical Sciences, Banaras Hindu University, Varanasi, India.

The authors have stated that they do not have a significant financial interest or other relationship with any product manufacturer or provider of services discussed in this article. The authors do not discuss the use of off-label products, which includes unlabeled, unapproved, or investigative products or devices.

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Reddy, B., Raj, A. & Singh, V.P. Site of Incision and Corneal Astigmatism in Conventional SICS versus Phacoemulsification. Ann Ophthalmol 39, 209–216 (2007). https://doi.org/10.1007/s12009-007-0020-y

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  • DOI: https://doi.org/10.1007/s12009-007-0020-y

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