title: [Proliferative retinopathy--pathogenesis and classification from the aspect if indications for laser photocoagulation, and its incidence in materials of the Eye Clinic in Wroclaw].
abstract: OBJECTIVE
  To evaluate the incidence of different stages of DR, especelly the incidence of the PDR, in the materials of the Wroclaw University Eye Clinic.
  
  
  METHODS
  We performed our study from 1991 to 1994 in 478 subjects with diabetes mellitus--84 with diabetes type I and 394 with diabetes type II. In the older-onset group there were 64% of patients taking insulin. Mean age of the group was 61 years and mean period of duration of diabetes was 16 years. The methods of ophthalmological examination included stereoophthalmoscopy and fluorescein angiography.
  
  
  RESULTS
  We found in 930 examined eyes: RD absent--13 eyes, early NPDR--138 eyes, moderate NPDR--32 eyes, moderately severe NPRD--60 eyes, severe NPDR (preproliferative)--136 eyes, moderate PDR--186 eyes, "high risk" characteristics PDR--227 eyes and advanced PDR--138 eyes.
  
  
  CONCLUSIONS
  The study indicated in our materials the incidence of PDR and its severity very high.
authors.affiliation: Z Katedry i Kliniki Okulistyki AM we Wrocławiu.
authors.forename: M H
authors.initials: MH
authors.lastname: Nizankowska
authors.forename: A
authors.initials: A
authors.lastname: Lukasik-Czerek
authors.forename: J
authors.initials: J
authors.lastname: Oficjalska-Młyńczak
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003930:Diabetic Retinopathy / Q000145:classification* / Q000453:epidemiology* / Q000601:surgery; D005260:Female; D005451:Fluorescein Angiography; D006801:Humans; D015994:Incidence; D017075:Laser Coagulation; D008297:Male; D008875:Middle Aged; D009887:Ophthalmoscopy; D011044:Poland / Q000453:epidemiology