title: [Retinal sensitivity following subthreshold diode laser micropulse photocoagulation for diabetic macular edema].
abstract: OBJECTIVE
  To report the retinal sensitivity after subthreshold diode laser micropulse photocoagulation(SDM) to evaluate its safety.
  
  
  METHODS
  Eight eyes of 8 diabetic patients with clinically significant macular edema were treated with SDM. SDM was applied with a 15% duty cycle, 0.2 to 0.3 sec, 200 microm, at 700 to 800 mW. Postoperative retinal sensitivity (1-2 weeks) was compared to preoperative retinal sensitivity measured by microperimeter-1 (MP-1, Nidek technologies, Padova, Italy) using a 1 x 1 mm square test grid with 49 stimulus locations.
  
  
  RESULTS
  The retinal sensitivity improved (more than 2 dB) in 3 eyes and remained stable (within 2 dB) in 5 eyes. The median retinal sensitivity increased significantly in 5 eyes and decreased significantly in 3 eyes. The average retinal sensitivity of 8 eyes was 12.04 +/- 3.69 dB before laser treatment, and 13.20 3.47 dB after laser treatment and there was no statistically significant change in retinal sensitivity at 2 weeks (p = 0.09).
  
  
  CONCLUSIONS
  Short duration SDM for diabetic macular edema has no significant effect on retinal sensitivity.
authors.affiliation: Department of Ophthalmology, St. Luke's International Hospital, Tokyo, Japan. hoshiyu@luke.or.jp
authors.forename: Yuko
authors.initials: Y
authors.lastname: Hoshikawa
authors.forename: Kishiko
authors.initials: K
authors.lastname: Ohkoshi
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Yamaguchi
mesh_terms: D000368:Aged; D003930:Diabetic Retinopathy / Q000503:physiopathology / Q000601:surgery*; D003941:Diagnostic Techniques, Ophthalmological; D006801:Humans; D054023:Lasers, Semiconductor / Q000627:therapeutic use*; D008028:Light Coagulation; D008269:Macular Edema / Q000503:physiopathology / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012160:Retina / Q000503:physiopathology*; D041623:Tomography, Optical Coherence; D016896:Treatment Outcome; D014792:Visual Acuity