title: [Photorefractive keratectomy for correction of anisometropia after cataract surgery].
abstract: OBJECTIVE
  To determine the visual and refractive outcome of photorefractive keratectomy (PRK) in patients with anisometropia after cataract surgery.
  
  
  METHODS
  We studied a series of 31 eyes of 24 patients who underwent PRK for the correction of anisometropia after cataract surgery. Pre- and post-operative vision, refraction, anisometropia and surgical complications were observed. These patients were followed-up at 12.2 months after laser ablation.
  
  
  RESULTS
  One week following PRK, the uncorrected visual acuity (UCVA) and the best correct visual acuity (BCVA) were improved significantly (P < 0.01). Mean spherical equivalent refraction (MSER) was decreased significantly to (1.12 +/- 0.55) D after PRK. The MSER was (1.27 +/- 0.56) D in myopia eyes and (0.81 +/- 0.38) D in hyperopia eyes one week after PRK, the difference between these two groups was statistically significant (P < 0.01). Astigmatism was decreased significantly after PRK (P < 0.01), the mean astigmatism was (0.49 +/- 0.38) D one week after the operation. Anisometropia was decreased from (3.44 +/- 1.07) D to (0.58 +/- 0.31) D after PRK, the difference between the pre-operative and post-operative anisometropia was statistically significant (P < 0.01). No serious complications occurred during or after the operation.
  
  
  CONCLUSIONS
  PRK is a safe, reliable and effective method for correction of anisometropia after cataract surgery.
authors.affiliation: Ophthalmology Laser Center, Affiliated Hospital of Medical College, Qingdao University, Qingdao 266003, China. yanli7119@163.net
authors.forename: Yan
authors.initials: Y
authors.lastname: Li
authors.forename: Fang
authors.initials: F
authors.lastname: Zhou
authors.forename: Gui-qiu
authors.initials: GQ
authors.lastname: Zhao
mesh_terms: D000328:Adult; D000368:Aged; D015858:Anisometropia / Q000209:etiology / Q000601:surgery*; D001251:Astigmatism / Q000209:etiology; D002387:Cataract Extraction / Q000009:adverse effects*; D005260:Female; D006801:Humans; D054018:Lasers, Excimer; D008297:Male; D008875:Middle Aged; D018903:Photorefractive Keratectomy; D011183:Postoperative Complications / Q000209:etiology; D012029:Refraction, Ocular; D014792:Visual Acuity