Contact Lens Basics

Things You Should Know About Contact Lenses

Contact lenses have almost become indispensable. You need to know many things about them to make the most of them. To begin with, soft lenses have proved to be more comfortable for both, the patients and the practitioners. These lenses offer correct vision. Soft lenses come in all type of formats. They are also available in the market as toric and bifocal lenses. You can also get disposable soft lenses but to maintain the safety and usefulness of these lenses, you need to take certain steps.

Soft lenses absorb a few elements from the nature. These lenses have some drawback. These lenses cause lack of oxygen to the eyes. The surfaces of the soft lenses break often. This causes a decrease in the sharpness of the vision. Many people feel more comfortable with RGP [rigid gas permeable] lenses. These lenses are cheap. They are available in all formats in the market. These lenses can be easily custom designed. These lenses can offer wider range of vision correction than soft lenses.

Soft lenses are easy to handle. You have to put these lenses on the cornea and you do not need a competent eye care practitioner to do that. But, remember that poorly fit soft lenses can cause eye damage up to a certain extent.

All near sighted people can wear contact lenses. Some labs make custom contact lenses up to -30 diopters. These lenses are very safe except for the fact that when worn on the cornea, they can cause loss of oxygen supply to the eye. This could lead to the growth of blood vessels in front of the eyes. This can also cause swelling in the cornea and various other infections. To avoid such a situation, you must follow some precautions. You should never share contact lenses with your friends, the reason being that tears on the eyes have normal bacteria that might cause infection.

Supervise the changing parameters of contact lenses. You can have sunbath with contact lens. Dirty contact lenses can cause blood shot eyes. You need to know the vertex distance of contact lens. Some patients do better with high water contact lenses.