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Cet abstract a été assigné à session OB Free papers 4 - Glaucoma
TitreRelationship between central corneal thickness and visual field loss in a glaucomatous cohort
ButTo emphasize the importance of measuring central corneal thickness (CCT) in glaucoma screening.
MéthodesIn a cohort of 92 patients with ocular hypertension or chronic open angle glaucoma, CCT, intraocular pressure (IOP), cup disc ratio and Octopus Loss of Variance (LV) of all right eyes were measured. IOP and CCT was measured in a control group of 165 right eyes. The glaucoma group was divided in a group with thin cornea (<508 µ), a normal corneal thickness group (509 -588µ), and a thick cornea group (>589µ).
RésultatsIn the control group mean CCT was 543µ (s.dev 35 µ). In the glaucomatous group with thin cornea mean LV was 36, with 6 out of 16 patients with loss of LV >30. In the normal CCT glaucoma group mean LV was 12.7 with 3 out of 60 with loss of LV >30. In the thick cornea glaucoma group mean LV was 5.6 with no patient out of 12 having a loss of LV > 20. The difference in LV was significant between the thin cornea group and the normal and thick cornea groups. The difference in LV was not significant between normal and thick cornea group.
ConclusionPatients with thin corneas are much more at risk to develop visual field defects. Patients with thick corneas rarely develop visual field defects. Follow up of patients with thin corneas is more mandatory than for patients with thick corneas. The necessity to treat patients with thick corneas is often questionable. Including pachymetry in glaucoma screening will lead to earlier detection of patients at risk.
Auteur 1
NomSCHAUWVLIEGHE
InitialesP
InstitutAZ Sint Lucas
VilleGent
Auteur 2
NomSCHAUWVLIEGHE
InitialesAS
VilleGent
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