Could a super-bright light cause blindness?

Cecil's Columns/Staff Reports
1

Actually now it can:

http://www.fosterfreeman.co.uk/products/forensic-ls/quaser2000-30/quaser2000-30.html

The quaser can cause permanent blindness if viewed directly without protection. It can even cause retina damage simply from a reflection off plain white paper.

:eek:

2

Aren’t lasers “super-bright light”? :confused:

3

Is this related to a column?

The classic joke warning on lasers: Do not look at laser with remaining eye.

Otherwise, looking at welding “flash” can cause visual impairment ranging from “seeing spots” for a while on up to loss of color vision(true color-blindness) and loss of all vision (blindness). Current thread on welding and eyes

Being outside on a sunny day after a snowfall, especially at high altitudes, can also lead to being snow-blind - happily, the blindness goes away in a few days.

4

A link to the column you’re commenting on is appreciated. This is the one: Do crystals have special powers? Could a super-bright light cause blindness?