Butterfly Frosted Occluder Glasses Sku(s): 460811 Description: Now With Adjustable Temples Who said serious tests had to be done with boring test glasses? Add some fun to your tests with colorful Butterfly Fun Frosted Occluder glasses to help with pediatric vision tests. These screening/testing frosted occluder glasses are very colorful and are extremely durable! Our new and improved occluder glasses now have adjustable temples for a better and more comfortable fit. The Butterfly Fun Occluders includes 2 frosted glasses, one to occlude each eye. Not for possession by children under 3 years old. Also available as parrots, tigers and horses.