- Glare is the "the dazzling sensation of relatively
bright light, which produces unpleasantness or discomfort,
or which interferes with optimum vision" (Cline, Hofstetter,
& Griffin, 1989, p.292).
- Glare is identified as the number one problem for the
- Discomfort glare occurs when widely varied levels of brightness
exist concurrently within the eye's visual field(Rosenberg,
- Sunglasses with top and side-shield protection help minimize
discomfort glare from the field of view.
- Dazzling glare, also know as photophobia, occurs when
an individual experiences extreme visual sensitivity to
- Dazzling glare can be relieved with filters that attenuate
(or lower the visible light transmission) across the complete
- Use the lightest filter possible, since for every drop
in percent transmission there is a corresponding drop in
- Veiling glare (also called disabling glare) is "stray
light that interferes with visual resolution because it
is random and thereby reduces the contrast of the figure/ground
in the retinal image" (Rosenberg, 1984, p. 197).
- Low Vision sunglasses that filter short-to-medium wavelengths
of the visible light spectrum can help reduce Veiling Glare.
These amber, brown and orange filters are commonly known
as Blue- Blockers.
The NoIR Filter System for Glare
- The NoIR Filter System minimizes eye discomfort and maximizes
visual resolution by filtering the short-to-medium wavelengths
of the visible spectrum.
- NoIR filters provide critical top and side- shield protection
for complete glare protection.
Percents (%) represent amount of visible light transmitted
through each lens.