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In detachment of retina, the separation is between the:


# In detachment of retina, the separation is between the:
A. Choroid and retina
B. Pigmented layer and layer of rods and cornea
C. Layer of rods and cones and external limiting membrane
D. Layer of nerve fibres and internal limiting membrane

 

The correct answer is B. Pigmented layer and layer of rods and cones.

In detachment of the retina, the outer pigmented layer remains attached to the choroid, but the remaining layers of the retina separate from the pigmented layer and are displaced inwards. 

Most of the eye's interior is filled with vitreous. There are millions of fine fibres intertwined within the vitreous that are attached to the surface of the retina. As we age, the vitreous slowly shrinks or liquifies, and these fibres pull on the retinal surface. Usually the fibres break, allowing the vitreous to separate and shrink from the retina. This is a vitreous detachment which occurs towards inside. 

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