AVES-PECTEN
In the eye of the bird a comb like structure is present. It is called pecten. It is soft and vascular. It is a rectangular plate. It projects into the vitreous humour from the blind spot.
Functions of pecten :
1) It protects the retina from sunlight by casting shadow on it.
2) pecten gives additional nourishment to the retina.
It exists pressure on the lens and alter its curvature for accommodation.
The pecten or pecten oculi is a comb-like structure of blood vessels belonging to the choroid in the eye of a bird.
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