Corneal Ectasia after Photorefractive Keratectomy for Low Myopia

Corneal ectasia after photorefractive keratectomy

“…Even low myopic attempted PRK corrections (in our patient 4 and in the literature [10]) can induce ectasia in presence of an inferior steepening.…”

“…However, isolated cases of corneal ectasia after PRK have been recently reported [7][8][9][10][11][12], even after low myopic corrections [10], raising the suspicion that surface ablation may induce ectasia in predisposed corneas, in spite of a thick residual stroma. The real incidence of corneal ectasia after PRK has not yet been assessed.…”

Characterization of corneal structure in keratoconus

“…95 For this reason, photorefractive keratectomy or laser-assisted subepithelial keratectomy has been presented as an adequate technique in keratoconus suspect patients, although the potential risk for iatrogenic ectasia is not completely eliminated. 96,97 …”

Photorefractive keratectomy in patients with suspected keratoconus: Five-year follow-up

“…In 2006, Malecaze et al 21 reported the first case of bilateral iatrogenic ectasia after uneventful PRK. The preoperative Placido topography of 1 of the treated eyes showed a skewed radial axis and some degree of irregularity.…”