Question

1) When an object is more than 20 feet from the eye and is clearly focused on the retina the _______________.

2) The fact that rods exhibit more neuronal convergence than cones do is part of the reason that ______.

Answer 1

1.When an object is more than 20 feet from the eye and is clearly focused on the retina the cilliary smooth muscles are relaxed .As to focus the far placed object the curvature of lens of eye need to be increased to do so cilliary smooth muscles relaxes and lens become more flattened .

2. The fact that rods exhibit more neuronal convergence than cones do is part of the reason that rods are more more sensitive and very responsive under low light conditions,contributed for scotopic vision.