Rods, located peripherally in the retina, provide black and white vision and are sensitive to dim light, but their convergence onto single neurons reduces visual acuity.
Rods, mainly in the retina's periphery, detect black and white vision and are sensitive to low light due to multiple rods converging onto one neuron, resulting in lower visual acuity.
| Front | Rods |
|---|---|
| Back | Found mainly in peripheral parts of retina Rods only give information in black and white (monochromatic form) Rods are very sensitive to light (fire action potentials in dim light) Many rods join one neurone so many weak generator potentials combine to reach the threshold and trigger the action potential Rods give low visual acuity because many rods join the same neurone, which means light from too points close together can't be told apart |
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