1. Retina is the most sensitive at
a) Optic disc
b) Periphery
c) Macula lutea
d) Fovea centralis
Explanation: Fovea centralis
2. The aperture controlling light passage in the eye is
a) Pupil
b) Sclerotic
c) Blindspot
d) Iris
Explanation: Pupil
3.The space between cornea and lens is
a) Aqueous chamber
b) Vitreous chamber
c) Canal of Schlemm
d) Fovea centralis
Explanation: Aqueous chamber
4. Cones are sensitive to
a) Dim light only
b) Bright light only
c) Both dim and bright light
d) None of these
Explanation: Bright light only
5. Colour is perceived by
a) Rods in retina
b) Cones in retina
c) Corneal-lens complex
d) Lens
Explanation: Cones in retina
6. Rhodopsin (visual purple) of the eye will require
a) Guava
b) Carrot
c) Mango
d) Wheat
Explanation: Carrot
7. Area of the most acute vision in the eye where sharp and bright image formed is
a) Yellow spot
b) Blindspot
c) Pupil
d) Lens
Explanation: Yellow spot
8. An area of the retina which does not have rods or cones are
a) Red spot
b) Blue spot
c) Blind spot
d) Black spot
Explanation: Blind spot
9. Vitamin A combines with a protein in the retina to produce
a) Glaucoma
b) Night blindness
c) Rhodopsin
d) Colour blindness
Explanation: Rhodopsin
10. The fovea is a _________ portion of the _________
a) Thick-out, sclera
b) Thin-out, choroid
c) Thin-out, retina
d) Thick-out, retina
Explanation: Thin-out, retina