Visual correction of keratoconus with soft contact lenses.
Soft contact lenses were fitted on 96 eyes of 52 patients suffering from keratoconus. The visual acuity of 66 eyes was 4/10 or better with soft contact lenses alone. The amount of astigmatism corrected with soft contact lenses varied between 1.50 and 8.00 D, with an average of 2.80 D. Sixteen eyes had a residual astigmatism. Correcting this astigmatism with spectacles resulted in improved visual acuity, and finally, 71 eyes, or 74%, had a visual acuity 4/10 or better. Soft contact lenses of three manufacturers, Bausch & Lomb (the C series), Nusyte, and Bioflex, were used. Thicker lenses corrected more astigmatism and provided an improved visual acuity, especially the C series lenses of Bausch & Lomb, which presented certain advantages in visual correction of keratoconus patients.
D000293:Adolescent; D000328:Adult; D002648:Child; D003263:Contact Lenses, Hydrophilic; D005139:Eyeglasses; D005260:Female; D006801:Humans; D007640:Keratoconus / Q000534:rehabilitation*; D008297:Male; D012030:Refractive Errors / Q000534:rehabilitation*; D014792:Visual Acuity