title: [Correlation between central corneal thickness and axial length in patients with glaucoma and normal eyes].
abstract: OBJECTIVE
  To evaluate and to correlate the central corneal thickness with the ocular axial length in patients with primary open-angle glaucoma, primary angle-closure glaucoma and individuals with normal eyes.
  
  
  METHODS
  The sample was composed of 94 patients' eyes, divided into three groups constituted of 33 eyes of 33 primary open-angle glaucoma patients, 30 eyes of 30 primary angle-closure glaucoma patients and 31 normal eyes of 31 individuals. The central corneal thickness and the axial length were measured by ultrasonic pachymeter and biometry by A-scan ultrasound, respectively.
  
  
  RESULTS
  The results showed a mean of 535.1 mm central corneal thickness in primary angle-closure glaucoma group, 520.6 mm in primary open-angle glaucoma group and 519.2 mm in normal eyes (p=0.18). The ocular axial length on primary angle-closure glaucoma group was 22.16 mm and on primary open-angle glaucoma and normal eyes group was 22.68 mm and 22.64 mm, respectively (p=0.13). There was no significant correlation between corneal thickness and axial length in the primary angle-closure glaucoma group (r=-0.085; p=0.65), the open-angle glaucoma group (r=-0.070; p=0.69) and the normal eyes group (r=-0.120; p=0.52).
  
  
  CONCLUSIONS
  The results of this assay suggest that there is no correlation between the central corneal thickness and the axial length in patients with glaucoma and individuals with normal eyes.
authors.affiliation: Departamento de Oftalmologia Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, Brazil. paula.raap@gmail.com
authors.forename: Paula Resende Aquino de Assis Pereira
authors.initials: PR
authors.lastname: Mello
authors.forename: Sérgio Henrique Sampaio
authors.initials: SH
authors.lastname: Meirelles
authors.forename: Haroldo Vieira de
authors.initials: HV
authors.lastname: Moraes Júnior
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016022:Case-Control Studies; D003315:Cornea / Q000000981:diagnostic imaging / Q000473:pathology*; D005260:Female; D015812:Glaucoma, Angle-Closure / Q000473:pathology*; D005902:Glaucoma, Open-Angle / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D014463:Ultrasonography