Recurrent rates and risk factors associated with recurrent XXXX after primary phototherapeutic keratectomy.

@entity1 @entity101 @entity6 @entity2299 @entity565 @entity262 @entity726 @entity158 @entity741 @entity309
OBJECTIVE: To assess the recurrent rate, mean survival time, and risk factors associated with recurrent @entity158 (BK) after primary treatment with phototherapeutic keratectomy. METHODS: Medical records from 72 @entity1 (72 eyes) who had phototherapeutic keratectomy for painful BK were evaluated. Data for sex, age, duration of BK, associated ocular and @entity262 ( @entity101 , @entity6 , @entity741 , @entity565 , @entity2299 , and @entity309 ), frequency and degree of @entity158 (grade 1-3), visual acuity, corneal thickness, intraocular pressure, and laser setting were extracted and analyzed. RESULTS: The mean age of the @entity1 was 64.2  11.4 years. The mean preoperative duration of BK was 15.0  11.0 months. Most @entity1 had pseudophakic BK (69.40%). Majority of the cases had grade 3 degree of @entity158 (48.60%). @entity726 and @entity101 were markedly found among these @entity1 (51.40% and 19.40%, respectively). Preoperative mean intraocular pressure and corneal thickness were 13.70  4.95 mmHg and 734.1  83.80   m, respectively. The mean laser diameter and depth were 8.36  1.22 mm and 38.89  8.81   m, respectively. @entity262 was significantly associated with the risk for developing recurrent painful BK (P=0.022, hazard ratio [HR] 1.673, 95% confidence interval [CI] 1.08-2.58). The overall recurrent rate was 51%. The average duration time of recurrent painful BK was 17.3  12.9 months (range 1-50 months). The median survival time before recurrence was 29.0  6.6 months. CONCLUSION: @entity262 was found to be the only risk factor significantly associated with the development of recurrent painful BK. Low recurrent rate and long mean survival time showed that phototherapeutic keratectomy was effective in relieving recurrent painful BK and can be used as an alternative procedure for @entity1 waiting for corneal transplantation.
