title: [Morphological parameters of the optic disc in patients with primary open angle glaucoma and low myopia].
abstract: OBJECTIVE
  To compare the morphological parameters of the optic disc in patients with low myopia and primary open angle glaucoma (POAG) and in patients with glaucoma without refractive errors.
  
  
  METHODS
  53 patients, aged 33-88 (56.2 +/- 11.9) with POAG were qualified for our study. The group was divided into two: first group consisted of 14 patients--11 women and 3 men, aged 41-83 (58.2 +/- 10.9) comprising 28 eye balls with low myopia (-0.5 Dsph to -3.5 Dsph) and POAG. The second group consisted of 38 patients: 24 women and 14 men, aged 33-80 (51.0 +/- 13.4) comprising 71 eye balls including 43 emetropic eyes, 26 eyes with hyperopia (+0.5 Dsph to +3.0 Dsph) and 2 eyes with astigmatism. All patients demonstrated early changes in visual field 1-2 stage due to the Aulhom classification. The measurements of the morphological parameters of the optic disc were made with confocal scanning laser ophthalmoscopy using Heidelberg Retina Tomograph--HRT II with glaucoma software. We analyzed the following parameters: optic disc area, cup area, rim area, cup/disc ratio, linear c/d ratio, mean cup depth, maximum cup depth. The statistical analysis was made using Kolomogarow-Smirnow test.
  
  
  RESULTS
  All analyzed parameters were higher in patients with low myopia and POAG than in patients with only POAG. The results in both groups were different but still no statistically significant.
  
  
  CONCLUSIONS
  Low myopia has an influence on the optic disc morphology in patients with POAG.
authors.affiliation: Z Kliniki Okulistyki Akademii Medycznej w Białymstoku.
authors.forename: Renata
authors.initials: R
authors.lastname: Zalewska
authors.forename: Zofia
authors.initials: Z
authors.lastname: Mariak
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Rybak
authors.forename: Ewa
authors.initials: E
authors.lastname: Proniewska-Skretek
authors.forename: Jolanta
authors.initials: J
authors.lastname: Andrzejewska-Buczko
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D005902:Glaucoma, Open-Angle / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009216:Myopia / Q000473:pathology*; D009887:Ophthalmoscopy; D009898:Optic Disk / Q000473:pathology*