O. Touzeau et al., POST PENETRATING KERATOPLASTY ASTIGMATISM - A VIDEOKERATOSCOPIC ANALYSIS, Journal francais d'ophtalmologie, 20(9), 1997, pp. 680-688
Purpose To study tile factors which induce post keratoplasty astigmati
sm. To assess fl-le reliability of different methods in the astigmatis
m measurement and to study the visual acuity predicting factors, Metho
ds We retrospectively studied the corneal topography in 60 eves with p
enetrating keratoplasty after suture removal, using the CAS (Eye Sys)
. The diagnosis was keratoconus in 65% of the cases and bullous kerato
pathy in 15% of the cases. The graft was secured with a single running
suture in 38.3% of the cases, ir interrupted sutures bz 23.3% of the
cases, or a combination of both running and interrupted sutures ill re
maining 28.3 %. Results The suture method, diagnosis and surgeon did n
ot influence subjective refraction nor visual acuity, The topographic
pattern correlated with subjectif cylinder (rs = 0.52 p = 0.02). The r
efractive power cylinder (''Holladay diagnostic summary'') correlated
well with subjective cylinder (rs = 0.81 p < 0.001) and visual acuiy (
rs = -0.63; p < 0.001). The Javal keratometry remains the best method
to measure astigmatism axis (rs = 0.58; p < 0.001). Conclusions The Ho
lladay diagnostic summary (refractive power) is a useful tool for eval
uating qualitative outcome of corneal transplantation.