Contact lenses, also known as full lenses, are thin clear lenses placed directly onto the cornea (the transparent covering of the eye). Contact lenses have revolutionized eye care and greatly reduced the need for eyeglasses or glasses to correct visual defects. Many people choose to wear contact lenses rather than wearing glasses, because the lenses give a more natural appearance to the eye, and most people find that they are easier to care for and wear than glasses. Even those who have had vision problems for years may wear contact lenses for cosmetic or practical reasons.
Most full contact lenses are made from plastic
The theory behind contact lenses is that the shape of the cornea is such that it will not hold one lens permanently in place. This allows for the easy removal of lenses when the patient needs to alter their vision. Contacts come in a variety of styles and materials, depending on the vision correction needed. Most full contact lenses are made from plastic, but a few are made of silicon to improve eye health and sensitivity.
The extended wear variety is designed to be worn for extended periods
If you wear contact lenses, it is important to care for them properly to ensure optimal performance. The extended wear variety is designed to be worn for extended periods. In general, you should wear contact lenses for at least one hour each day, but this varies depending on your eye care routine. It is best to consult with an optometrist or other medical professional to find out the specific guidelines for your particular eye condition. The extended-wear lenses tend to be more expensive than the daily wear varieties, so it is important to balance the cost of the lens with the benefits of having a clearer vision. They are also usually recommended for use during sports and outdoor activities, as some can irritate the eyes if they are exposed to the sun for extended periods.
The majority of full-service offer a replacement schedule for their soft contact lens products
With a replacement schedule, you pay a maintenance fee to have the lenses replaced on that schedule, so it makes financial sense to purchase a product that comes with a replacement schedule. Some contact lens providers recommend the purchase of two separate replacement packages – one package for daily wear and another for extended wear, depending on your requirements. Typically, most soft contact lenses come with two different replacement schedules, although some may offer a three-day grace period between each day of wear.
Always make sure you know exactly what you are buying
When purchasing soft lenses online, remember that they are packaged differently than prescription lenses. Always make sure you know exactly what you are buying, as some are marked as prescription lenses but are not really designed for the particular correction being sought. Always read the directions carefully, especially regarding proper lens care, as the wrong lens can cause harm to your eyes. Also, it is always best to consult an eye doctor before making a purchase, as certain issues can only be addressed by a trained professional. Purchasing from an unqualified person or retailer may result in reduced quality of service, which can ultimately result in loss of eyesight.
Eyecare is an important factor when selecting and using contact lens products
Contact lens keratitis, the inflammation of the cornea and the eye itself, can become painful for the patient. To avoid keratitis, one should clean their hands before applying lenses, especially if they have worked in industries that use disinfectants or chemicals. They should also take their time in adjusting their contact lenses to fit properly and should avoid rubbing their eyes. Keratitis is often difficult to detect, especially in patients who wear glasses, so patients must discuss their eye care habits with their optometrist or eye care professional.