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Comparative study of surgically induced astigmatism following small incision cataract surgery with incision placed in superior and temporal meridian

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Original Article

Author Details : Aparna Mandal, Piyali Sarkar*, Payal Manna

Volume : 6, Issue : 3, Year : 2020

Article Page : 333-337

https://doi.org/10.18231/j.ijceo.2020.072

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Abstract

Background: Cataract surgery now a days has become a refractive surgery. It not only improves the
vision, but also provides good unaided visual acuity(VA). Sutureless small incision cataract surgery(SICS)
induces minimum astigmatism. It also helps in early rehabilitation by faster stabilisation of post-operative
refraction.
Objective: The aim of this prospective observational study was to compare the Surgery induced
astigmatism(SIA) and VA following manual SICS with superior and temporal incisions.
Materials and Methods: Consecutive 100 patients in the age group of 40 -70 years with cataract having
VA<6> underwent manual SICS with superior scleral incision and rest 50 with temporal incision. Post operative
astigmatism was measured at 4th and 8th weeks. Best corrected VA was checked at 8th week. SIA was
calculated at 4th and 8th week post operatively.
The statistical analysis was done with the help of SPSS 18 statistical analysis software, measuring p value,
mean and standard deviation.
Results: The mean SIA in superior and temporal SICS at 4rth week was 1.06+/-0.41 DCyl and
0.75+/-0.36 DCyl respectively (p=0.000) and at 8thweek was 0.99+/-0.31 DCyl and 0.64+/- 0.32 DCyl
respectively (p=0.000). The difference of SIA at 4rth and 8th week in both the techniques was statistically
insignificant.41 patients with superior incision and 43 patients with temporal incision had VA of 6/6 at 8th
post operative week.VA was 6/9 in 6 patients with superior incision and 3 patients with temporal incision.
Whereas, VA was 6/12 in 3 patients with superior incision and 4 patients with temporal incision at 8th post
operative week.VA at 8th post-operative week in both the techniques were comparable.
Conclusion: SIA in temporal SICS is significantly lesser than that in superior SICS whereas VA in both
the techniques is excellent and comparable.

Keywords: SICS, SIA, Incision site.

How to cite : Mandal A , Sarkar P , Manna P , Comparative study of surgically induced astigmatism following small incision cataract surgery with incision placed in superior and temporal meridian. Indian J Clin Exp Ophthalmol 2020;6(3):333-337

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