Contact lenses are a medical device designed to be worn directly on the cornea of the eye to correct vision or for therapeutic purposes. They are made of a thin, clear, and flexible material that conforms to the shape of the eye.
There are two main types of contact lenses: soft and rigid gas permeable (RGP). Soft contact lenses are the most commonly prescribed type of contact lens and are made of hydrogels or silicone hydrogels. They are flexible and provide good comfort for daily wear. Rigid gas permeable lenses, also known as hard or GP lenses, are made of a firm plastic material that allows oxygen to pass through. They provide sharper vision than soft lenses and are more durable.
Contact lenses are prescribed by an eye doctor after a comprehensive eye exam and fitting. It is important to follow the doctor’s instructions for cleaning and wearing the lenses to avoid eye infections and other complications. Some common complications associated with contact lens wear include dry eyes, corneal ulcers, and conjunctivitis.
If you are considering wearing contact lenses, it is important to talk to your eye doctor to determine which type of lens is best for your eyes and lifestyle. They can also provide guidance on proper care and maintenance of the lenses.
