Electrodiagnostic Tests in Ophthalmology

ELECTRO-DIAGNOSTIC TESTS ( ERG, EOG, VER ) Dr. Ankit M. Punjabi DOMS (final year) Dept. of Ophthalmology, KIMS Hospital Bangalore, Karnataka, INDIA Email: drankitalways@gmail.com

ERG ,[object Object],[object Object],[object Object],[object Object]

ERG waves ( a, b, c ) ,[object Object],[object Object],[object Object]

Physiologic basis of ERG ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Physiologic basis of ERG ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Physiologic basis of ERG ,[object Object],[object Object],[object Object]

Recording protocol ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

ERG recording ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Factors influencing ERG ,[object Object],[object Object],[object Object],[object Object],[object Object]

Factors influencing ERG ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cone Rod ERG ,[object Object],[object Object],[object Object],[object Object],[object Object]

Separation of cone & rod ERG ,[object Object],[object Object],[object Object]

ERG recording ,[object Object]

ERG recording ,[object Object],[object Object],[object Object],4 5

Clinical Applications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Clinical Applications ,[object Object],[object Object],[object Object],[object Object],[object Object]

EOG ,[object Object],[object Object],[object Object],[object Object]

EOG recording ,[object Object],[object Object],[object Object],[object Object],[object Object]

EOG ,[object Object],[object Object],[object Object],[object Object],[object Object]

Arden’s ratio ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],[object Object],2 components of EOG

Visually Evoked Potential (Response) VEP / VER

Visual evoked potential ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Types of VEP ,[object Object],[object Object]

VEP ,[object Object],[object Object],[object Object],[object Object]

VEP ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

VEP Indications ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

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Electrodiagnostic Tests in Ophthalmology

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Electrodiagnostic Tests in Ophthalmology