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Snellen charts are used to measure visual acuity. The speaker mentioned it in the context of measuri...

Astaxanthin is a red pink pigment found in various seafoods and the feathers of flamingos. It may in...

Luteine is a molecule in supplements that can help support vision. The speaker mentions that there i...

YouTube is a video sharing service where users can watch, like, share, comment and upload their own ...

Vitamin A is a group of unsaturated nutritional organic compounds that includes retinol, retinal, re...