[Size of incision and induced astigmatism in cataract surgery].
A study was carried out of postoperative astigmatism in three groups of 50 eyes which had had cataracts removed by phacoemulsification or by planned extracapsular removal through incisions of 3.5-4 mm, 7-7.5 mm, and 10-11 mm respectively. No statistically significant differences were observed in the average number of cases of astigmatism found 100 days after the operation in the patients in whom incisions of 10-11 mm (1.82 +/- 0.95 Dp) and 7-7.5 mm (1.78 +/- 0.90 Dp) were made. Appreciable differences were discovered when these two groups were compared with cases in which small incisions had been used and who presented a lower degree of astigmatism (1.02 +/- 0.59 Dp). To ensure less postoperative astigmatism after phacoemulsification, the size of the incision should be modified as little as possible during the insertion of the intraocular lens.
Cristobal
J A
JA
Service d'Ophtalmologie, Hospital Clínico Universitario, Zaragoza, Espagne.
Minguez
E
E
Ascaso
J
J
Vicente
E
E
Huerva
V
V
Castillo
J
J
Palomar
A
A
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001251:Astigmatism / Q000209:etiology*; D002387:Cataract Extraction / Q000009:adverse effects* / Q000379:methods; D006801:Humans; D008875:Middle Aged; D013536:Suture Techniques
Taille de l'incision et astigmatisme induit dans la chirurgie de la cataracte.