Kératotomies arciformes périphériques et correction de l’astigmatisme dans la chirurgie de la cataracte

Abstract

To evaluate the effectiveness of limbal relaxing incisions for correcting significant preoperative astigmatism during cataract surgery.In 32 patients (50 eyes) with preoperative keratometric astigmatism between 1.25 and 2.5 D, cataract surgery was combined with limbal relaxing incisions according to a modified Gills nomogram.The mean preoperative keratometric astigmatism was 1.6 (+/- 0.39) D. The mean preoperative manifest refraction was 1.26 ((+/- 0.39) D. The mean 1-month, 6-month and 3-year or more postoperative keratometric astigmatisms were 0.77 ((+/- 0.29), 0.84 ((+/- 0.5) and 0.86 ((+/- 0.32) D, respectively. The mean postoperative manifest refractions were 0.48 ((+/- 0.32), 0.55 ((+/- 0.29) and 0.54 ((+/- 0.29) D, respectively. Postoperative refractive astigmatisms were 0 or 0.25 D in 22% of the cases, 0.5 or 0.75 D in 64% and greater than 0.75 D in 14%. Conclusion.- Limbal relaxing incisions are an effective and simple approach to the correction of significant preoperative astigmatism during cataract surgery.