title: The change of macular thickness following single-session pattern scan laser panretinal photocoagulation for diabetic retinopathy.
abstract: OBJECTIVE
  To identify the incidence and risk factors of macular edema development following single-session pattern scan laser panretinal photocoagulation (PRP) for eyes with diabetic retinopathy.
  
  
  METHODS
  Medical records were reviewed in consecutive patients who underwent single-session PRP for diabetic retinopathy. The eyes with baseline central subfield retinal thickness (CRT) less than 300 μm were included.
  
  
  RESULTS
  Macular edema developed in 11 (8.5%) of 129 eyes 1 months after PRP. In the multivariate analysis, baseline CRT (μm) (odds ratio [OR] = 1.04, 95% confidence interval [CI] = 1.00-1.08, p = 0.048) and presence of intraretinal cystoid spaces or subretinal fluid on spectral-domain optical coherence tomography (SD-OCT) images (OR = 38.33; 95% CI = 1.36-1,083.14, p = 0.032) were significantly associated with macular edema development at 1-month visit. Macular edema developed in two (2.1%) of 97 eyes without cystoid spaces or subretinal fluid. The macular edema was spontaneously resolved in five (45.5%) of 11 cases at 3-month visit.
  
  
  CONCLUSIONS
  SD-OCT may be helpful in predicting the development of macular edema, although the macular edema rarely developed after single-session pattern scan laser PRP and was spontaneously resolved in many cases.
authors.affiliation: Department of Ophthalmology, Dongguk University Ilsan Hospital, Goyang, South Korea.
authors.forename: Jong-Hyun
authors.initials: JH
authors.lastname: Oh
authors.forename: Seong-Woo
authors.initials: SW
authors.lastname: Kim
authors.forename: Soon-Sun
authors.initials: SS
authors.lastname: Kwon
authors.forename: Jaeryung
authors.initials: J
authors.lastname: Oh
authors.forename: Kuhl
authors.initials: K
authors.lastname: Huh
mesh_terms: D003930:Diabetic Retinopathy / Q000503:physiopathology / Q000601:surgery*; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D015994:Incidence; D017075:Laser Coagulation / Q000009:adverse effects*; D053844:Lasers, Solid-State / Q000009:adverse effects; D008266:Macula Lutea / Q000473:pathology*; D008269:Macular Edema / Q000175:diagnosis / Q000209:etiology* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D009929:Organ Size; D012189:Retrospective Studies; D012307:Risk Factors; D041623:Tomography, Optical Coherence; D014792:Visual Acuity / Q000502:physiology