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As the name suggests
these are diagnostic procedures where the
results obtained from the tests should be
correlated with the clinical findings. Various
references from other Hospitals are also studied
here.
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Electro-Retinogram (ERG) - objective testing done for retinal function
Electro-Oculogram (EOG) - objective testing done for RPE (retinal pigment epithelium) function
Visual Evoked Potential (VEP) - objective measurement of the visual stimulation which is monitored by visual status
Patients who have congenital defects in retinal
components like rods, cones etc. are usually
referred. However for VEP, malingering cases
and cases in which the visual pathway is affected
(e.g. Lesions in the visual pathway) are referred.
Based on the results obtained on the tests
individually or, in some cases, with two tests
the results are analyzed and are correlated
with the clinical presentation of the patient.
Based on these findings the Optometrist diagnoses
the case.
Cases referred
- Electro-retinoGram
- Heredomacular Degenerations
- Congenital Stationary Night Blindness
- Gyrate Atrophy
- Leber’s Congenital Amaurosis
- Electro-OculoGram
- Fundus Flavimaculatus
- Chloroquine toxicity
- Rubella Maculopathy
- Vitelliform Dystrophy
- Visual Evoked Potential
- Assessment of the optic pathway
- To identify Malingering & Hysteria
- Objective assessment of refractive
error, diagnostic assessment of amblyopia
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