RobR
May 26th 06, 03:27 AM
anyone know anything about these things? i understand what photochromatic
lenses are, but i'm wondering if these cheap window shades are actually
functional and also block UVA and UVB. I can't find any info on them
with google. I'm sure it's out there, but it's buried in glasses information
( I tried with -glasses and -sunglasses as well).
lenses are, but i'm wondering if these cheap window shades are actually
functional and also block UVA and UVB. I can't find any info on them
with google. I'm sure it's out there, but it's buried in glasses information
( I tried with -glasses and -sunglasses as well).