[Postoperative astigmatism secondary to cataract surgery].

THE AIM OF THE PAPER

The purpose was to study the cases operated by the extracapsular extraction with the posterior chamber implant from the viewpoint of postoperative astigmatism.

MATERIAL AND METHODS

We studied the cases with no postoperative complications along three years (1999-2001). In all cases we noted the placement, length and type of the incision, the suture (by 3 or 5 radiar suture) and the tension of the eye-ball in the time of suture. We determined the refraction at 2-3 and 6 weeks postoperatory and note the astigmatism (by the rule or against the rule) and its value in D.

RESULTS

The postoperative astigmatism was found in 246 cases. Depending on the placement, length and type of the incision the postoperative astigmatism was found in 86.18% cases with the rule and in 13.82% cases against the rule, 54.72% postoperative astigmatism with the rule by 1.5-3 D. If we sutured with three radiar suture the astigmatism was with the rule in 86.88% cases, 52.82% astigmatism by 1.5-3D. If we sutured with 5 radiar suture the astigmatism was with the rule in 85.95% cases, 55.35% astigmatism by 1.5-3D. Normotension determined astigmatism by the rule in 90.16% cases and 60.10% by 1.5-3D. The suture with Vicryl 8.00 determined astigmatism by the rule in 86.18% cases and 54.72% was between 1.5-3D.

CONCLUSIONS

Postoperative astigmatism depends by many factors more or less predictable. Astigmatism by the rule was found in majority of the cases and it was between 1.5-3D and it was controlled by glasses. Postoperative astigmatism tends to become history in new period of modern cataract surgery methods.