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BA Nassaralla, JJ Nassaralla; Orbscan Analysis of the Cornea after Scleral Buckling Surgery . Invest. Ophthalmol. Vis. Sci. 2002;43(13):146.
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© ARVO (1962-2015); The Authors (2016-present)
Purpose:To assess by the Orbscan corneal topographer, the corneal changes after three different types of scleral buckling surgery. Methods:22 eyes of 22 patients were divided into three groups according to the type of buckling procedure performed: Group 1, encircling scleral buckling (11 patients); Group 2, encircling with vitrectomy (6 patients); Group 3, encircling with additional segmental buckling (5 patients). Orbscan topographical analyses were performed preoperatively and at 1, 3 and 6 months after surgery. Results:Statistical significance was observed in the amount of induced corneal steepening in all three groups. After surgery, Groups 1 and 2 presented either flattening on one side with steepening on the opposite side or peripheral corneal flattening with central steepening. The incidence of irregular astigmatism was higher after additional segmental buckling (Group 3). The corneal changes persisted for up to 6 months. No statistical significance was found between pachymetric measurements before and after surgery. Conclusion:Corneal steepening, irregular and asymmetric corneal changes were found after all three types of scleral buckling surgery. Additional segmental buckling is related to more significant corneal changes.
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