In which part of the sclera blood capillaries are absent?

Corneal grafting is especially successful because:

Following are various structures/regions of the human eye. Choose the correct option with respect to the sequence of the passage of light for the formation of an image:
$(A)$ Cornea
$(B)$ Lens
$(C)$ Aqueous humor
$(D)$ Pigment epithelium of retina
$(E)$ Conjunctiva

The vitreous humor is .....

Perception of colour is possible among

The area of the retina where the image is formed most clearly is called the.........