Evaluation of Different Perimetric Grids to Detect Central Visual Field Defect in Glaucoma Patients with Reduce Ganglion Cell Layer Thickness Measured by Spectral Domain OCT.

Evaluation of Different Perimetric Grids to Detect Central Visual Field Defect in Glaucoma Patients with Reduce Ganglion Cell Layer Thickness Measured by Spectral Domain OCT.

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.

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