Clinical Outcomes of an Optimized Prolate Ablation Procedure for Correcting Residual Refractive Errors Following Laser Surgery
Korean Journal of Ophthalmology
;
: 16-24, 2017.
Article
Dans Anglais
| WPRIM
| ID: wpr-122719
ABSTRACT
PURPOSE:
The purpose of this study was to investigate the clinical efficacy of an optimized prolate ablation procedure for correcting residual refractive errors following laser surgery.METHODS:
We analyzed 24 eyes of 15 patients who underwent an optimized prolate ablation procedure for the correction of residual refractive errors following laser in situ keratomileusis, laser-assisted subepithelial keratectomy, or photorefractive keratectomy surgeries. Preoperative ophthalmic examinations were performed, and uncorrected distance visual acuity, corrected distance visual acuity, manifest refraction values (sphere, cylinder, and spherical equivalent), point spread function, modulation transfer function, corneal asphericity (Q value), ocular aberrations, and corneal haze measurements were obtained postoperatively at 1, 3, and 6 months.RESULTS:
Uncorrected distance visual acuity improved and refractive errors decreased significantly at 1, 3, and 6 months postoperatively. Total coma aberration increased at 3 and 6 months postoperatively, while changes in all other aberrations were not statistically significant. Similarly, no significant changes in point spread function were detected, but modulation transfer function increased significantly at the postoperative time points measured.CONCLUSIONS:
The optimized prolate ablation procedure was effective in terms of improving visual acuity and objective visual performance for the correction of persistent refractive errors following laser surgery.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Phosmet
/
Troubles de la réfraction oculaire
/
Acuité visuelle
/
Résultat thérapeutique
/
Coma
/
Photokératectomie réfractive
/
Kératomileusis in situ avec laser excimère
/
Kératectomie sous-épithéliale assistée par laser
/
Thérapie laser
/
Procédures de chirurgie réfractive
Limites du sujet:
Humains
langue:
Anglais
Texte intégral:
Korean Journal of Ophthalmology
Année:
2017
Type:
Article
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