title: Changes in Pupil Size Following Panretinal and Focal/Grid Retinal Photocoagulation: Automatic Infrared Pupillometry Study.
abstract: OBJECTIVE
  To evaluate possible changes in pupil size subsequent to panretinal and focal/grid laser photocoagulation.
  
  
  METHODS
  Sixty-four eyes of 64 participants were included. Thirty-two eyes with planned panretinal photocoagulation formed Group 1, and 32 eyes with planned focal retinal photocoagulation formed Group 2. The participants underwent full ophthalmologic examination at baseline. Automated infrared pupillometry was performed at baseline and month 1.
  
  
  RESULTS
  The mean pupillary measurements (in millimeters) for Group 1 (in order photopic, mesopic, scotopic) were 3.09 ± 0.69 mm, 3.66 ± 0.85 mm, and 3.87 ± 1.01 mm and changed to 3.34 ± 0.74 mm, 3.82 ± 0.92 mm, and 4.03 ± 1.02 mm. There was a significant increase in pupil size at month 1 (P = 0.001, P = 0.001, P = 0.003). For Group 2, they were 2.65 ± 0.87 mm, 3.08 ± 1.08 mm, and 3.18 ± 1.19 mm and changed to 2.92 ± 0.72 mm, 3.45 ± 0.76 mm, and 3.57 ± 0.88 mm. There was no significant difference in pupil size at month 1 (P = 0.151, P = 0.106, P = 0.095).
  
  
  CONCLUSIONS
  We have demonstrated through automated infrared pupillary measurements that panretinal laser photocoagulation may significantly influence pupil size and focal/grid laser photocoagulation may not.
authors.affiliation: Department of Ophthalmology, Beyoglu Eye Training and Research Hospital , Istanbul, Turkey .
authors.forename: Ihsan
authors.initials: I
authors.lastname: Yilmaz
authors.affiliation: Department of Ophthalmology, Beyoglu Eye Training and Research Hospital , Istanbul, Turkey .
authors.forename: Miray
authors.initials: M
authors.lastname: Faiz
authors.affiliation: Department of Ophthalmology, Beyoglu Eye Training and Research Hospital , Istanbul, Turkey .
authors.forename: Basak
authors.initials: B
authors.lastname: Saracoglu
authors.affiliation: Department of Ophthalmology, Beyoglu Eye Training and Research Hospital , Istanbul, Turkey .
authors.forename: Ahmet Taylan
authors.initials: AT
authors.lastname: Yazici
mesh_terms: D000328:Adult; D000368:Aged; D001331:Automation; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D005260:Female; D006801:Humans; D007259:Infrared Rays; D008028:Light Coagulation; D008269:Macular Edema / Q000473:pathology* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D011680:Pupil / Q000502:physiology* / Q000528:radiation effects; D012160:Retina / Q000473:pathology* / Q000601:surgery*; D014792:Visual Acuity