<unk>  eclipse glasses The<unk>  eclipse of December 26, 2019 seen through a pair of<unk>  eclipse glasses in Jaffna, Sri Lanka.<unk>  (also known as<unk>  viewing glasses or<unk>  eclipse glasses) are special eyewear designed for direct viewing of the Sun. Standard sunglasses are unable to filter out eye damaging radiation.<unk> s are required for safe viewing of<unk>  events such as eclipses. The recommended optical density of this eyewear is 5.
Solar viewer
Eye chart
IKEA pencil
UFAW Handbook
Pest House
OneTouch Ultra
Reading machine
Jaszczak phantom