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Involutional diabetic retinopathy.

W J Ramsay, R C Ramsay, R L Purple

American Journal of Ophthalmology

|December 1, 1977

Summary

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Diabetic retinopathy

Area of Science:

Ophthalmology
Retinal Diseases
Diabetic Complications

Background:

The involutional phase of proliferative diabetic retinopathy can stabilize vision.
Clinical signs may mimic progressive tapetoretinal degenerations, suggesting retinal dysfunction.

Purpose of the Study:

To assess retinal function in eyes with involutional retinopathy.
To document the extent of functional impairment in these eyes.

Main Methods:

Studied 19 eyes with involutional retinopathy.
Utilized fluorescein angiography, visual field testing, dark adaptation, color vision tests, electro-oculography, and electroretinography (ERG).

Main Results:

All eyes exhibited marked functional abnormalities.

Related Experiment Videos

ERG showed subnormal responses and delayed implicit times, characteristic of progressive retinal disorders.

Color vision defects included patterns similar to tritanopia and acquired blue-yellow dyschromatopsia.

Conclusions:

Involutional retinopathy is associated with significant retinal functional impairment.
ERG findings suggest a progressive nature, similar to inherited retinal degenerations.
Color vision deficits are common, indicating acquired visual pathway dysfunction.