Functional Tests in Glaucoma Marc Sarossy

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Presentation transcript:

Functional Tests in Glaucoma Marc Sarossy Ocular Diagnostic Clinic RVEEH Essendon Eye Clinic

Glaucoma Disease of Optic Nerve Manifests at the nerve head (disc) Related to Intraocular Pressure (IOP) Treated by Drops, Laser or Surgery

Functional Tests Measure the function of the visual system Targeted at the losses seen in glaucoma Psychophysical Visual Field FDT Microperimetry Electrophysiological Pattern ERG Photopic Negative Response

Why do Functional Tests Pick up changes earlier than structural tests Measure what is important to the person Identify reversible component

Retinitis Pigmentosa

Glaucoma

Sick Cells Don’t Function Well

The Visual Field Test

Frequency Doubling Test

Microperimetry

Field Tests at Home

Electrical Tests for Glaucoma Pattern ERG (PERG) Photopic Threshold Response (PTR) Photopic Negative Response (PhNR)

PhNR – Clinical Studies

Putting it Together

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