Visual performance after aphakic epikeratoplasty.
While good visual acuity and refractive results after epikeratoplasty for aphakia have been reported, particularly for adults and older children, limited detailed information on the nature of the resulting vision is available. We have evaluated the visual performance of seven aphakic subjects corrected by epikeratoplasty by measuring contrast sensitivity, with and without the presence of glare. These results were compared with those for other aphakic corrections, namely spectacles (n = 5 eyes), contact lenses (n = 5 eyes), or intraocular lens implantation (n = 5 eyes). There were statistically significant differences among these four aphakic correction types (p = 0.0330), with a consistent trend for diminished visual performance after epikeratoplasty. Threshold elevations occurred in the presence of glare, but they were not statistically different between the groups (p = 0.1631). Based on these visual assessments, epikeratoplasty does result in statistically significant visual losses. Despite this, it may still offer an acceptable alternative to other managements of the aphakic patient when those others are contraindicated.
Carney
L G
LG
Ohio State University, Columbus 43210.
Kelley
C G
CG
D000368:Aged; D001035:Aphakia / Q000601:surgery* / Q000628:therapy; D003261:Contact Lenses; D015350:Contrast Sensitivity / Q000502:physiology*; D016039:Corneal Transplantation; D005139:Eyeglasses; D005260:Female; D006801:Humans; D007910:Lenses, Intraocular; D008027:Light; D008297:Male; D008875:Middle Aged; D014787:Vision Tests; D014792:Visual Acuity / Q000502:physiology*