Transverse keratotomy in postkeratoplasty astigmatism.
Transverse relaxing incisions were made in 12 eyes with a mean corneal astigmatism of 10.7D following penetrating keratoplasty. A few days later the mean graft astigmatism had been reduced to 5.5D (p = 0.0022), the reduction being significantly correlated to the degree of astigmatism before the keratotomy was done (p = 0.0044). Thereafter the corneal contour remained fairly stable through a mean follow-up period of 28.1 months, although a tendency towards a further reduction of the astigmatism was indicated. The mean corrected visual acuity improved from 0.5 before the keratotomy to 0.7 at the last control visit (p = 0.0117).
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Department of Ophthalmology, University of Bergen, Norway.
D000328:Adult; D000368:Aged; D001251:Astigmatism / Q000209:etiology / Q000601:surgery*; D003315:Cornea / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D015948:Keratoplasty, Penetrating / Q000009:adverse effects*; D007646:Keratotomy, Radial; D008875:Middle Aged; D011183:Postoperative Complications; D014792:Visual Acuity