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200 Ophthalmic Lenses

2. Ultraviolet Protection
The pathogenesis of ocular disease due to UV is well understood. Sports
lenses reduce the amount of shorter wavelength non-ionizing radiations
reaching the retina and also useful to provide protection to the ocular
adnexa.

3. Anti-reflection Coating

In terms of light transmission, anti- reflection coatings are applied on both
the surface of the lens. These coatings increase light transmission from 92%
to up to 99%. The increase in visual information must improve contrast
sensitivity and will particularly important in poor light.

4. Water Repellent
Anti- reflection coating can be made water repellent. This is very important
as visual demands in sports can not be compromised.

5. Anti-mist Coating
The same reason can be attributed to anti mist coating on the lens surface.
The property to prevent the formation of mist behind the lens is an
important feature.

6. Scratch Resistant Hard Coating
Loss of vision due to scratches can not be accepted in sports lenses. They
must be treated with hard scratch resistant coating which is not
compromising as far as light transmission is concerned.

7. Aspheric

Any lens which enhances peripheral awareness or reduces lens weight is
an advantage in sports. Weight contributes to instability of the frame and
this has a profound effect on monocular and binocular vision, especially in
vigorous and fast moving sports.

TINTS AND COLOURS IN SPORTS LENSES
When things go wrong with the visual system, it may have a profound
effect on the everything we do. For some people changing the colour of
their world may produce interesting and surprising results. The usefulness
of colour and tints has already been seen in hospital eye screening as
clinically significant in cases like albinism, aniridia, ARMD, cataracts and
aphakia. Light sensitive people have been using dark tints comfortably to
protect their eyes from intense light. Given the potential of tints to relieve