Summary
Contact lenses are an alternative to glasses in the correction of long-sightedness or short-sightedness. A distinction is made between soft and rigid contact lenses based on the material, and daily lenses can be distinguished from monthly lenses and annual lenses based on the length of time they are worn. The advantages of contact lenses are better comfort and a larger and unaltered field of vision compared to glasses.
The disadvantages include the greater risk of infection and injury to the eyes, the higher cost factor and that most contact lenses should not be worn continuously, unlike glasses. Contact lenses should always be fitted by professionals such as opticians or ophthalmologists as part of an eye test to prevent damage to the cornea. Meticulous hygiene and care of contact lenses is essential to prevent irritation and infection of the eyes.