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[The effect of corneal incision method on astigmatism after cataract extraction]
A Smyk1, E Kropińska, A Orzałkiewicz
1Kliniki Okulistycznej AM w Bydgoszczy.
Purpose:
To assess the effect of the type of corneal incision and its closure on astigmatism after cataract extraction.
Material And Methods:
Induced astigmatism was evaluated in 94 eyes after cataract extraction with IOL implantation 7 days, 1 month, 3 months, 6 months and 12 months after operation. 3 groups: were compared I--after extracapsular extraction with corneo-scleral incision (10 h-2 h) and continuous cross-like suture, II--after phacoemulsifications with scleral tunnel incision (3.3 mm) without suture.
Results:
The highest induced astigmatism was observed 7 days after surgery in patients with the longest corneo-scleral incision with suture (group I). Induced astigmatism gradually decreased in time. In group after phacoemulsification especially with no suture low astigmatism with prompt stabilization was observed.
Conclusions:
The length and type of closure of the incision have an essential effect on induced astigmatism. Small incision, especially without suture induces minimal early postoperative astigmatism which remains stabile.