One of the most unique medical devices is contact lens that can correct the refractive errors and also help to change the appearance of the eyes.
There are two types of contact lenses – rigid contact lenses that are beneficial for Keratoconus and soft contact lenses that are commonly used and very comfortable. Manufactured from silicone hydrogel these are commercially available and are disposable on a daily, weekly, monthly and yearly basis.
Simple things to keep in mind when using contact lenses:
- Handle contact lenses gently
- Before wearing the lens, you need to wash your hands properly
- Try not to wear lenses for more than 8-10 hours everyday
- Remove lenses before going to sleep
- Stay alert and try not to rub your eyes when wearing the lens
- In case of any discomfort or redness in the eye region, discontinue the use of contact lenses and consult a specialist
Contact lenses are a boon for many people who have trouble wearing think glasses. They help to avoid refractive errors and offer a wide range of vision. A person can see uniformly and avoid prismatic effects. It is especially beneficial in high anisometropia where the person has high power difference in both eyes. It is equally helpful in treating irregular astigmatism. People who travel a lot and sportsperson find contact lenses an easier option as compared to glasses. It also adds to the glam quotient of a person by changing the color of the eyes.
But despite of all the benefits, it does have a couple of disadvantages:
- High maintenance. Person using contact lens must be very hygiene conscious and need to store the lens correctly in lens solutions.
- Sometimes people using contact lenses can suffer from allergies and infections.
- Corneal opacities might be developed. Peripheral corneal neovascularization can also be caused. It can also lead to low levels of oxygen that can be acute and chronic.
However, constant scientific endeavour has led to continuous advancements in contact lenses and people hardly face any major discomfort in using one at present. But it is always advisable to discuss with a specialist and have adequate and correct information for the proper and healthy use of contact lenses.