Contact lenses are thin lenses that rest adjacent to the eye, and focus
light similar to the way glasses do. Glasses are easier to take care
of because contact lenses come in contact with the eye and so they require
frequent cleansing. But contact lenses don't alter your appearance
and are especially useful for athletes.
of lenses - there are three different
levels of hardness. Hard contact lenses are rigid and can be hard
on the eye but are easy to maintain. Soft contact lenses are flexible
and comfortable but require more care. Semi-soft (gas-permeable)
lenses work a lot like hard lenses but are easier on the eye and can be
made for extended wear.
Lenses – a single pair of contact lenses
is becoming less and less common. Tearing or losing just one contact
is extremely expensive to replace.
Lenses – all contact lenses are disposable.
True disposables are contact lenses that are discarded at least once every
two weeks. Disposing of contact lenses on a regular basis can help
to reduce the build up of debris and cellular materials that can cause
adverse health effects on your eye. With disposables, vision is consistently
better, and replacing them is fast and inexpensive. Most people prefer
to wear disposables on a daily wear basis, removing them at night.
It is best not to sleep in contact lenses. The most commonly used
disposables are Acuvue, Baush and Lomb, and Newvue.
- Astigmatism –
contacts for astigmatism are available in one, two, or three-month planned
replacement as well as traditional lens types. Most people that wear
contacts have some mild degree of astigmatism. A small amount of
astigmatism that is not corrected does not affect vision greatly.
Replacement Lenses– are disposed every
one, two, or three months. This manner of discarding is less costly
than disposables, and still gives you most of the advantages. Planned
Replacement is the fastest growing choice of contact lens.
- Colors – contacts
enhance the color of your eyes are available in disposables and traditional
lenses. These lenses combine the natural color of your eye with the
color of the contact, creating a unique new eye color. If you naturally
have darker eyes, then opaque lenses are used to make the color.