3.1K views · 1.9K reactions | This is color blindness or color vision deficiency. Most people love their life not knowing they have it. #colorblind #colorblindchallenge #eyetest #eyetestchallenge #colordeficiency #doctor #medtok #doctorexplains | Dr.Z Neurosurgery | Facebook

20K views · 126 reactions | Macular degeneration is the most common cause of age-related vision loss. Here's a look at what happens in your eye when it occurs: | WebMD | Facebook