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This abstract is assigned to session BGS: Belgian Glaucoma Society
TitleCorrelation of the rate of progression of visual field loss between Guided Progression Analysis (GPA II) and PeriDataTM program in glaucoma patients: Pilot study
PurposeTo assess the correlation of progression rate measured by GPAII using visual field index (VFI%) and PeriDataTM employing functional equivalent score (FES) in glaucoma patients.
MethodsRetrospective, observational study including 54 eyes of 37 medically treated glaucoma patients with at least 5 reliable visual field examinations in minimum 2 years. Only patients with a negative rate of progression with VFI were taken into account to calculate their rate of progression and loss of FES. Patients who underwent filtering surgery or laser trabeculoplasty during the follow-up period were excluded.
ResultsMean age was 75.7 ±13.4 yrs. the patients performed their visual field with Humphrey standard automated perimeter (Sita Standard 24-2). The mean follow-up was 7.5 ± 2.5 yrs.
The mean of progression by GPA (%/year) and PeriData FES index (%/year) were: -2.0 ± 2.2 (range= -10.6 to -0.2 per year) and -3.18 ± 2.5 (range: -9.3 to 2.8 per year) respectively. There was an excellent correlation between GPAII index VFI% loss per year and PeriData FES loss per year (<0.001) for the total group. In contrary when the group was limited to low- moderate progressors (VFI% loss per year ≥ -2), there was no correlation between the two different indexes.
ConclusionIn this study we couldn't find any correlation between VFI% and FES% in the clinically low to moderate visual field progression.
Author 1
Last namePEETERS
InitialsH
DepartmentSt Luc University Hospital, Université Catholique de Louvain
CityBrussels
Author 2
Last nameDetry- Morel
InitialsM
DepartmentSt Luc University Hospital, Université Catholique de Louvain
CityBrussels
Author 3
Last namePourjavan
InitialsS
DepartmentSt Luc University Hospital, Université Catholique de Louvain
CityBrussels
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