Disorders of Visual Function

Phil is a 54-year-old with type 2 diabetes. After he was initially diagnosed with the condition, his physician referred him to an ophthalmologist for a comprehensive eye examination. Phil had been struggling with the lifestyle changes he was required to make. He was able to return to a healthy weight with physical exercise and dietary changes, but he worked long hours and ate poorly when on business trips. Phil missed his second annual checkup with his ophthalmologist because of such a trip. When he finally made it in, she examined him and stated there was no evidence of small retinal hemorrhages and cotton-wool exudates. She emphasized his need to reduce his hypertension and hyperlipidemia and wrote up a report for his physician.

How do visual disturbances arise from the background and proliferative retinopathy?
How might blindness occur with a prolonged detached retina? Explain using your knowledge of pathophysiology.
What are the similarities and differences between traction retinal detachment and rhegmatogenous detachment?

Sample Solution

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