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  • Title: Clinical outcomes and time to recurrence of phototherapeutic keratectomy in Japan.
    Author: Hieda O, Kawasaki S, Yamamura K, Nakatsukasa M, Kinoshita S, Sotozono C.
    Journal: Medicine (Baltimore); 2019 Jul; 98(27):e16216. PubMed ID: 31277131.
    Abstract:
    To assess the indications, outcomes and time to recurrence of phototherapeutic keratectomy (PTK) for anterior corneal pathology.This study involved 714 eyes of 477 consecutive patients (mean age: 66.0 ± 15.2 years; range: 6-101 years) who underwent PTK as the initial surgical intervention for an anterior corneal pathology. In case of each patient, the cornea treated by PTK, followed up by slit-lamp examination and corrected distance visual acuity (CDVA) testing. Main outcome measures included Slit-lamp findings (1), CDVA (2), patients' complaints (3).The mean follow-up period was 44.0 ± 38.8 months (range: 1-156 months).We treated 376 granular corneal dystrophy (GCD) eyes, 238 band keratopathy (BK) eyes, 23 epithelium attachment disorder eyes, 16 gelatinous drop-like corneal dystrophy (GDLD) eyes, 13 lattice corneal dystrophy (LCD) eyes, and 48 eyes with other corneal diseases. The CDVA significantly improved from LogMAR 0.65 ± 0.61 pre PTK to LogMAR 0.26 ± 0.39 post PTK. A 2 or more lines increase of CDVA was observed in GCD eyes (67.8%), BK eyes (49.2%), epithelium attachment disorder eyes (57.1%), GDLD eyes (87.5%), LCD eyes (76.9%), and other corneal disease eyes (60.4%). The recurrence of BK was rare. GCD recurred slowly. Epithelium attachment disorder eyes remitted simultaneously, and recurred comparatively faster.PTK was proved to be a successful therapy for all 6 corneal disease categories. Disease recurrence after PTK differed among the diseases, and surgeons should recognize the different rates of disease recurrence after PTK surgery.
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