Bruch’s membrane

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Which is the outermost layer of choroid?

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A. Haller’s layer

B. Sattler’s layer

C. Choriocapillaris

D. Bruch’s membrane

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What are the layers in Structure of the choroid?

Structure of the choroid has four layers-

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1. Haller’s layer – outermost layer of the choroid consisting of larger diameter blood vessels
2. Sattler’s layer – layer of medium diameter blood vessels
3. Choriocapillaris – layer of capillaries
4. Bruch’s membrane – innermost layer of the choroid

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Retinal pigment epithelium transports metabolic waste from the photoreceptors across Bruch’s membrane to the choroid.

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Dot-and-fleck retinopathy is seen in

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A. Behcet’s syndrome

B. Downs Syndrome

C. Alport syndrome

D. Dry eye syndrome

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Alport syndrome

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• Caused by an inherited defect in type IV collagen

• Structural material that is needed for the normal function of different parts of the body – found in the ears, eyes, and kidneys

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Alport syndrome is a triad of –

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• progressive renal failure,
• hearing loss
• ocular abnormalities.

The absence of type IV collagen affects the basement membrane of cornea, lens capsule, and retina in the eye.

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