A contact lens is a thin lens placed directly on the surface of the eye. They are considered medical devices and can be worn to correct vision, or for cosmetic or therapeutic reasons.
Types of contact lenses
Contact lenses are classified in many different ways by their primary function, material, wear schedule and replacement schedule.
- Corrective contact lenses: These are designed to improve vision, most commonly by correcting refractive error. This is done by directly focusing light so it enters the eye with the proper power for clear vision.
- Multi focal Contact lenses: They are typically designed for constant viewing through the center of the lens, but some designs do incorporate a shift in lens position to view through the reading
- Mono vision is the use of single vision lenses to focus an eye for distance vision and the other for near work.
- Cosmetic contact lens is designed to change the appearance of the eye. These lenses may, of course, also correct refractive error. Although many brands are lightly tinted to make them easier to handle, cosmetic lenses worn to change eye color are far less common.
Why is contact lens care important?
Depending on the type of lens you are wearing, there are many different options for cleaning and disinfecting your lenses. Usually contact lenses are subject to a buildup of micro-organisms and deposits. If not removed, these deposits and absorbed materials can build up on the lens surface which over time may result in the reduction of comfort and vision as well as an increased risk of contamination. This is why lenses need to be cared for on a regular basis using various types of solutions, which are not only compatible with the lens materials but also with the eye itself.
- Lubricates contact lenses and re-wets dry and irritated eyes.
- Relief from dry and irritated eyes specially formulated to lubricate and moisten your lens to help relieve irritation from dirt, smoke and dryness.
- Enhance lens movement for comfortable lens wear.
- Enzyme free.
Important things to be considered on contact lens care
Cleaning and Disinfection: This is an important step to kill micro-organisms responsible for eye infections.
Storage: Contact lenses must be stored in approved saline solutions.
Re-wetting: Use as needed to alleviate symptoms of lens dryness.
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