Eye Contact LensesEye contact lenses are considered to be a medical device and should be used only when prescribed by opthalmists. There are several companies who manufacture contact lenses for the eyes although the Carl Zeiss contact lenses are considered to be "numero uno" in the category. Okay! So where does one begin? If you feel that you are unable to see objects that are at a distance or unable to read the newspaper then you need to visit an opthalmist. An opthalmist is an eye doctor who can offer you alternative treatment, rectify your ocular vision, or recommend eye contact lenses. There are basically two common types of vision impairment: -Myopia: if you are not able to see objects situated far away -Hypermetropia: If you are unable to see objects situated very close. There are some people who also suffer from both myopia and hypermetropia. Both are common refractive issues and can be treated or corrected through refractive surgical processes. Once the surgery is over, you will need to wear patches for a mentioned period of time. You might even need to wear glasses or eye lenses if you see flashes, which normally indicates a deep rooted myopic issue. The other alternative is prescribed glasses or even contact lenses that you can wear throughout the day. One of the important things that you should know about eye contact lenses is that the lens prescriptions are normally valid for about a year. So if you eye lens validity period has expired then you will need to first get a prescription and then buy your new pair of lens. While there are cheap eye lens available, it is best to avoid them. Any defect in the contact lens can cause severe and permanent damage to your eyes and impair your vision completely. Hence, it is better to be safe than sorry! Types Of There are basically 4 types of contact lenses for eyes and they are: Soft Contact Lenses: The soft contact lenses for eyes are made from flexible plastics, which permit the passing of oxygen to the cornea. They are preferred over most other types of contact lenses because they can be adjusted easily and are comfortable to wear. Some of the new models of soft contact lenses have been made from silicone-hydrogels so that more oxygen can reach your eye. Some of the soft lenses are also waterproof, which means that you can swim underwater like a fish wearing your contact lenses. Rigid Gas Permeable Lenses: Also known as RGP lenses, these are durable lenses that resist a deposit build-up as well as offer clearer vision. Contact Lenses for Extended Wear: These contact lenses are normally available for continuous use especially when you are travelling long distances. They can be worn from one night to a maximum of 30 days at a stretch. Disposable Contact Lenses: Opthalmists prescribe disposable eye contact lenses these days but the only problem is that you can wear them only once and then have to discard them. Hence, buying disposable lenses can be an expensive affair. |