- Parts: Aqueous humour, Ciliary muscles, Cornea, Crystalline lens, Iris, Optic nerve, Pupil, Retina, Vitreous humour
- Power of Accommodation
- Functioning of a lens in human eye
- Concept of Human Eye
With the help of ciliary muscles the human eye can change its curvature and thus alter the focal length of its lens. State the changes that occur in the curvature and focal length of the eye lens while viewing (a) a distance object, (b) nearby objects.
A person got his eyes tested by an optician. The prescription for the spectacle lenses to be made reads :
Left eye : +2.50 D
Right eye : +2.00 D
State whether these lenses are thicker in the middle or at the edges.
Fill in the following blank with suitable words:
When light is dim, the pupil becomes................
Fill in the following blank with suitable word:
Having two eyes gives a ................field of view.