title: [Cup-to-disk ratio asymmetry: diagnostic value in glaucoma].
abstract: OBJECTIVE
  To assess visual field abnormalities in suspected glaucoma patients showing evident asymmetry in cup-to-disk ratio.
  
  
  METHODS
  Twenty two hypertensive eyes in 11 subjects evidencing lateral differences in cup-to-disk ratio of more than 2/10 were included in the study. Conventional and short wavelength automated perimetry (SWAP) was performed with a Humphrey field analyser. A retinal nerve fiber layer (RNFL) study was also performed.
  
  
  RESULTS
  Differences in IOP were 1.23 mmHg (p<0.05). No differences were evidenced in conventional automated perimetry between both eyes. Average sensitivity (SWAP) showed significantly lower (p<0.05) in those ayes with greater cup-to-disk ratio. RNFL showed a higher rate of defects in eyes with a higher cup-to-disk ratio.
  
  
  CONCLUSIONS
  Lateral differences in cup-to-disk ratio indicate structural glaucomatous damage which is related to IOP levels. Associated functional loss was evidenced with SWAP (Arch Soc Esp Oftalmol 2002; 77: 17-22).
authors.forename: V
authors.initials: V
authors.lastname: Polo Llorens
authors.forename: J M
authors.initials: JM
authors.lastname: Larrosa Poves
authors.forename: L E
authors.initials: LE
authors.lastname: Pablo Júlvez
authors.forename: I
authors.initials: I
authors.lastname: Pinilla Lozano
authors.forename: B
authors.initials: B
authors.lastname: Marcuello Melendo
authors.forename: S
authors.initials: S
authors.lastname: Fernández Larripa
authors.forename: F M
authors.initials: FM
authors.lastname: Honrubia López
mesh_terms: D000328:Adult; D015875:Anisocoria / Q000175:diagnosis*; D005260:Female; D005901:Glaucoma / Q000175:diagnosis*; D006801:Humans; D007499:Iris Diseases / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D058609:Visual Field Tests / Q000379:methods*