[Surgically induced astigmatism after cataract phacoemulsification].
OBJECTIVE
To evaluate the astigmatic effect after phacoemulsification depending on size and location of incision.


METHODS
Three groups of 30 patients each: In 1st group with scleral tunnel incision enlarged to 6 mm with continuous cross-like suture at 12 o'clock; In 2nd group with 3.2 mm scleral incision without suture at 12 o'clock; In 3rd group with 3.2 mm superotemporal incision in clear cornea, no suture. Postoperative astigmatism was examined by keratometry after 1 day, 1 week and 1 and 3 months post surgery. Surgically induced astigmatism was calculated by polar values method.


RESULTS
After 3 months observation the lowest mean postoperative corneal astigmatism was achieved in group III. The SIA was 0.71 in group III, 1.08 in group I and 0.95 in group II. The differences between group III and groups I, II were statistically significant.


CONCLUSIONS
Surgically induced astigmatism can be minimized with incision in clear cornea and no suture.
Bilińska
Ewa
E
Kliniki Chorób Oczu Uniwersytetu Medycznego w Lodzi.
Wesołek-Czernik
Agata
A
Synder
Aleksandra
A
Omulecki
Wojciech
W
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000175:diagnosis / Q000209:etiology*; D002386:Cataract / Q000503:physiopathology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018918:Phacoemulsification / Q000379:methods*; D011182:Postoperative Care; D011183:Postoperative Complications; D011300:Preoperative Care; D012720:Severity of Illness Index