Penetrating keratoplasty in infants

Abstract

Purpose: To analyze graft survival and visual outcome after penetrating keratoplasty in infants with congenital corneal opacity.

Methods: We retrospectively reviewed the records of 11 patients with congenital corneal opacity who underwent penetrating keratoplasty as infants. Six patients had a diagnosis of Peter's anomaly, 1 of congenital hereditary endothelial dystrophy, 1 of posterior polymorphous dystrophy, and 2 of sclerocornea, and in the other patient, the cause of the opacity was unknown.

Results: In total, 26 penetrating keratoplasties were performed on 16 eyes of 11 infants. All patients initially underwent surgery before the age of 13 months. Five patients underwent bilateral penetrating keratoplasty, and 10 of the transplants were repeat operations on eyes that had already had at least one previously failed graft. The age of the infants at the time of first penetrating keratoplasty ranged from 2 to 56 weeks (median, 13 weeks). The graft survival time for all transplants ranged from 3 to 137 months (median, 16 months). Overall first graft survival at 12 months was 61% (95% CI, 33%-81%), with 10 of 16 eyes retaining a clear corneal graft. Peter's anomaly, lensectomy, and repeat penetrating keratoplasty were factors most highly associated with poor graft survival and a low final visual acuity.

Conclusion: Early penetrating keratoplasty for congenital corneal opacity may prevent deprivation amblyopia. Although this procedure carries a high risk of failure, particularly in those patients with Peter's anomaly, careful case selection, optical correction, and management of postoperative amblyopia may result in a successful visual outcome.