What tool did the optometrist use?
March 3, 2009 9:30 AM Subscribe
What did the optometrist use to make my vision so much better, and how does it work?
posted by Pantengliopoli to health & fitness (9 answers total) 6 users marked this as a favorite
Not the fancy bells/whistle machine
with all the cool gears and lenses. Before that, he used a simple piece of plastic to block one eye and leave a hole for the other. After testing vision with that, he flipped a second piece of plastic over the hole -- from what I could tell, the second piece was just a thin sheet of opaque plastic with a bunch of small holes in it. No lenses or anything, just little holes.
With that covering my eye, I could see the smaller print much more clearly. How does that work? Does it replicate the eye squinting by reducing visual "noise" or something? I'm fascinated.