Overview
The aim of the study is to evaluate the agreement between three different grids in detecting central visual field defect in early glaucoma patients with reduced ganglion cell layer thickness.
Eligibility
Inclusion Criteria:
- glaucoma patients with glaucomatous optic nerve head defect and reduced ganglion cell layer thickness
Exclusion Criteria:
- age<18 years
- unable to read, understand and sign the written informed consent
- unable to perform visual field test
- advanced glaucoma with C/D>0.7
- other causes of optic neuropathies
- retinal or macular diseases
- lens or corneal opacities
- spherical refractive defect >± 6D
- cylindric refractive defect >± 3D