Central corneal topographic changes after retinal detachment surgery

• Main Authors: Paulo Elias C. Dantas, Cássia R. Suzuki, M. Cristina Nishiwaki-Dantas, Ricardo T. L. Waetge, José M. B. Marinho, Richard L. Abbott, Wayne E. Fung
• Format: Article
• Language: English
• Published: Conselho Brasileiro de Oftalmologia
• Series: Arquivos Brasileiros de Oftalmologia
• Subjects: Retinal detachment surgery; Corneal topography; Cornea curvature; Astigmatism; Computerized videokeratography
• Online Access: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0004-27491999000200127&lng=en&tlng=en

SUMMARY Purpose: To analyze early central corneal topographic changes induced by encircling band procedure to better understand its influence on corneal curvature and visual rehabilitation. Methods: Twelve patients with regmatogenic peripheral retinal detachment, without macular involvement, were evaluated regarding best corrected visual acuity, biomicroscopy, tonometry, fundoscopy, axial length ultrasonography and corneal topography, both preoperatively and 4 weeks postoperatively. Paired t tests were used to compare pre and postop-surgical values. Results: We found statistical significant central flattening in 11 out of 12 cases with mean flattening of 1.22 diopters ±1.73 (p < 0.05). There was a minimal change in the axial length with no statistical significance. Conclusion: Refractive changes after encircling procedure are frequent and play an important role in the final visual acuity, especially in patients with healthy or nonaffected macula. The nature of these changes apparently depends upon the type of procedure used.