Contact lenses correct vision in the same way that glasses do, only they are in contact with the eye. They are medical devices that are worn in lieu of spectacles, are more comfortable and provide better vision than spectacles.
Contact lenses are supported by the lids, cornea, conjunctiva and tear film. They act as a physical barrier to normal tear-cornea-lid mechanics and corneal metabolism.
When they were introduced in the 70's, contact lenses were only made of hard glass. These lenses were cumbersome and uncomfortable to wear. With the advances in technology and materials, there were enhancements in the contact lenses as well. There are many types of contact lenses available currently. They are:
- Soft Contact Lenses
- Rigid Gas Permeable (RGP) Contact Lenses
- Extended Wear Contact Lenses
- Disposable (Replacement Schedule) Contact Lenses
Each lens has its advantages and disadvantages. Dr. Jayashree will be able to explain to you the merits and demerits of the various type of contact lenses.
Reasons to Consider Contact Lenses
- Contact lenses move with your eye, allow a natural field of view, have no frames to obstruct your vision and greatly reduce distortions.
- They do not fog up, like glasses, nor do they get splattered by mud or rain.
- Contact lenses do not get in the way of your activities.
- Many people feel they look better in contact lenses.
- Contact lenses, compared to eyeglasses, generally offer better sight.
Some Things to Remember About Contact Lenses
- Contact lenses, when compared with glasses, require a longer initial examination and more follow-up visits to maintain eye health; and more time for lens care.
- If you are going to wear your lenses successfully, you will have to clean and store them properly; adhere to lens wearing schedules; and make appointments for follow-up care.
- If you are wearing disposable or planned replacement lenses, you will have to carefully follow the schedule for throwing away used lenses.