Total Solar Eclipse on August 21, 2017

IBF

Insane Member
[OP]
Sep 21, 2016
117,448
25
 

Sushubh

Administrator
Oct 29, 2004
413,661
12,751
Gurugram
Lawsuit: Amazon sold eclipse glasses that cause “permanent blindness” | Ars Technica

i do wonder how you can actually test the effectiveness of these glasses without an actual eclipse.
i have a dark spot on my retina. found out few years ago during a routine eye checkup. doctor said that it could only be caused by looking at an eclipse with naked eye. i do remember seeing an eclipse when i was a kid but with one of the glasses that were sold in the market. i can only imagine that i was stupid enough to not use it properly or it was defective.