[Phototherapeutic keratectomy for the treatment of Cogan's microcystic dystrophy].
OBJECTIVE
This retrospective study was designed to investigate the therapeutic potential of phototherapeutic keratectomy (PTK) for the treatment of map-dot-fingerprint corneal dystrophy (MDFCD).


METHODS
PTK was performed with the Excimed UV 200 and with the Nidek EC5000 on 38 patients (55 eyes). Mean patient age was 51 years (range, 28-86 years). The mean follow-up period was 19 months (range, 8-54 months). The treatment goal for each patient was to improve vision (17 eyes), to heal recurrent corneal erosions (28 eyes) or both (10 eyes).


RESULTS
In 13 of 17 eyes (76.47%) with reduction in visual acuity, best corrected visual acuity (BCVA) improved by two lines or more. In 36 eyes of 38 (94.7%) with recurrent corneal erosions, there was no recurrence during the follow-up period. No decreased BCVA was noted. No recurrence of corneal dystrophic changes was seen in the ablation zone at the final follow-up. The mean hyperopic shift caused by tissue ablation was +O.55+/-1.35 after 1 year.


CONCLUSIONS
Excimer laser PTK is a safe and effective outpatient treatment and should be used as initial treatment for MDFCD.
Bourges
J L
JL
Service d'Ophtalmologie, Hôpital Hôtel-Dieu, 1 place du Parvis Notre Dame, 75181 Paris Cedex 04, France.
Dighiero
P
P
Assaraf
E
E
Monnet
D
D
Renard
G
G
D003317:Corneal Dystrophies, Hereditary / Q000601:surgery*; D005500:Follow-Up Studies; D006801:Humans; D054018:Lasers, Excimer; D018903:Photorefractive Keratectomy / Q000379:methods*; D012189:Retrospective Studies; D013997:Time Factors