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Mmastodon ScienceBiology first seen 1 d ago, last 10 h ago, peak #5

Simple question: how does light reach the retina's rods and cones?

Original: Embarrassing # question about vision and # biology of the human # eye : How does light get to rods & cones past all the

A question about basic eye biology is circulating online: how does light reach the rods and cones at the back of the retina when other cells sit in front of them? The person asking admits limited biology knowledge but understands the retina contains photoreceptors, bipolar cells and ganglion cells. The discussion highlights a genuine anatomical oddity of the vertebrate eye, where light passes through several neural layers before hitting photoreceptors.

Why now: People find the seemingly 'backwards' wiring of the human retina a fascinating and counterintuitive bit of biology worth explaining.

human eyeretinarods and cones

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Rank over time, top of the chart is #1. 12 snapshots from 1 d ago to 10 h ago.

Evidence

API: https://socialmediatrends-api.osmike.com/v1/trends/1137377