Which one of the following is the correct difference between rod cells and cone cells of our retina?
Rod cells |
Cone cells |
||
1. |
Distribution |
More concentrated in centre of retina |
Evenly distributed all over retina |
2. |
Visual activity |
High |
Low |
3. |
Visual pigment contained |
Lodopsin |
Rhodopsin |
4. |
Overall function |
Vision in poor light |
Color vision and detailed vision in bright light |
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An age-related condition when the eye's lens doesn't change shape as easily as it once did [Presbyopia] is usually caused by:
1. decreasing the flexibility of the lens
2. an eyeball that is slightly too short
3. an eyeball that is slightly too long
4. a cornea with asymmetric curvature