[email protected] wrote:
> I bought a couple pair of sunglasses for an upcoming race but find the
> glasses significantly alter my depth perception. Is this normal?
First of all, I think you'll find that they are designed to be used one
at a time. So, if you're wearing both at once, take one of them off.
The serious answer is - did you buy them at a garage forecourt (AmE
"gas station")? If so, they're not likely to be very good - will
probably have sub-optimal UV protection, and the lenses may be ****.
On the other hand, if they're branded shades then they should NOT alter
your depth perception - they should be optically neutral. However, you
might find that wearing them in shady or murky light will change how
much you can actually see.
Edward