Abstract:
Background
Cataract is opacity in the lens capsule or its substance. The mainstay of
management of cataract is surgery and with the advent of foldable intraocular lens and
Remarkable development in phacoemulcification it is possible to implant lens
through an incision small as 2.2mm, which helps in significantly reducing post
operative astigmatism.
Aims and Objectives of this study were
To evaluate the outcome of surgically induced astigmatism by comparing the
superior sclera incision and temporal sclera incision in phacoemulcification with
foldable lens.
To compare the pre operative and post operative astigmatism in superior and
temporal scleral incisions.
Methods:
The prospective study was conducted at B.L.D.E.U‘S Shri B.M .Patil medical
college, Hospital and Research Centre, Vijayapur from December 2014- May 2016.
A total of 116 patients were included in the study clinically diagnosed of
immature senile cataract. All patients were evaluated in detail regarding grading of
cataract, visual acuity, keratometry, slit lamp examination, fundus and detailed
evaluation was done.
Patients were divided into ―WITH THR RULE‖ and ―AGAINST THE RULE‖
groups based on keratometry readings.
Results:
The present student was done among 116 patients and evaluated surgically
induced astigmatism.
x
Patients divided into two Groups (Group 1- Superior scleral incision) and (Group 2-
Temporal scleral incision) . 53.4% patients in Group 1 had with the rule and 25.9%
patients had against the rule astigmatism. In Group 2 34.4% patients had with the rule
and 48.3% patients had ATR astigmatism.
34.4% patients in group 1, developed WTR astigmatism after
phacoemulsification. 60.3% patients developed ATR astigmatism. 56.9% patients of
group 2 developed WTR astigmatism while 37% patients developed ATR
astigmatism. in Group 1, 27.6% patients developed WTR astigmatism, with a mean
astigmatism of 0.72D and 62.1% patients developed ATR astigmatism with a mean
astigmatism of 1.00D. in Group 2, 53.4% patients developed WTR astigmatism with a
mean astigmatism of 0.79D and 31.1% patients developed ATR astigmatism having a
mean of 0.46D. the average surgical induced astigmatism in patients who underwent
phacoemulsification with superior scleral incision and temporal scleral incision was
0.83D and 0.54D respectively.
Interpretation & Conclusion:
The current study shows that temporal scleral incisions seem to achieve the
goal of minimizing surgically induced astigmatism. Temporal scleral incision is
evidently better than superior scleral incision in minimizing surgically induced
astigmatism.
