Final answer:
More neural convergence leads to decreased light sensitivity, while less neural convergence leads to increased light sensitivity in the eye.
Step-by-step explanation:
The effect of more or less neural convergence on light sensitivity is that more convergence leads to decreased light sensitivity, while less convergence leads to increased light sensitivity. In the eye, the rods and cones (photoreceptors) on the retina play a key role in detecting light. Rods are more sensitive to light and are responsible for vision in dim environments, while cones are responsible for color vision. When there is more neural convergence, multiple rods or cones connect to a single bipolar cell. This pooling of information decreases the visual acuity and sensitivity to light, but increases the ability to detect motion or changes in light intensity. On the other hand, when there is less neural convergence, each rod or cone connects to its own bipolar cell, leading to increased visual acuity and sensitivity to light.