Types of Contact Lenses
- Soft Lenses
Soft contacts range in water content from 25% to 79%, are easy to adapt to, and are quite comfortable. Soft contact lenses come in a wider variety of replacement schedules.
|Type of Contact Lens
||Replacement Schedule |
||1 Day |
|Extended Wear (you can sleep with the lenses)
||1 week to 1 month |
||2 weeks |
||1 month to several months |
||1 year |
Color contacts come in a wide variety of colors, including hazel, green, blue, violet, amethyst and gray. Color contact lenses are available in plano (without correction) and in corrective powers. You will still need a prescription to get color contacts in plano power. Dr. Battani will help you decide which color best suits your personality and appearance.
- RGP (Rigid Gas Permeable) Lenses
Rigid gas permeable contact lenses take longer to adapt to, but are more durable and more resistant to deposit buildup. They tend to be less expensive over the life of the lens (but the upfront cost is higher) and can offer some people crisper vision than they would have with soft contacts. With GP lenses, you generally replace them every couple of years, because they are made of a very durable material (though a prescription change would necessitate new lenses).
- Single Vision Contact Lenses
Single vision lens corrects Myopia (near sightness), Hyperopia (far-sightness), and Astigmatism.
- Bifocal Lenses
Bifocal contacts work much like bifocal eyeglasses. They have two powers on one lens: one to correct distance vision and the other to correct near vision.
Bifocal contacts are available in both soft and RGP (rigid gas permeable) materials.
- Mono Vision Lenses
Monovision contacts are an alternate option to bifocal contact lens wear. With monovision, you wear one contact lens with one power to correct distance vision and the other contact lens with one power to correct near vision. The distance vision lens is usually worn in your dominant eye.
CARING FOR CONTACT LENSES
By Dr. Battani
Through the miracle of modern technology and advances in biochemistry, contact lenses have become easier to care for than ever before. Contact lens solution manufacturers have nearly made care systems and regimens completely idiot proof. Following a few simple rules and guidelines with your hygiene practices can greatly reduce the risk of infection and long-term problems associated with contact lens wear.
Always wash your hands with soap and water prior to handling your lenses.
The normal flora and fauna (microscopic bacterial population) that lives on your skin is not a health risk to you systemically,
but is a common source of infection in the eyes. Be sure to completely dry your hands or rinse your hands with your all purpose
solution before touching your contact lenses. Tap water contains some live organisms, particularly Acanthoemeba, which can attack the
perfectly healthy, in tact cornea, causing the complete destruction of the cornea within 48 hours if untreated.