Wearing such devices for vision correction caused a lot of discomfort, which is why many are still convinced that contact lenses damage the membrane of the eyeball. However, modern lenses are comfortable to wear and, moreover, multifunctional, which was unthinkable even 50 years ago. And their fixation on the eyeball does not cause discomfort, as they have softness and moisture of the material combined with the correct concave shape. A modern lens allows the eye to "breathe" and works effectively in conjunction with natural tears.
It is best to select lenses with the help of a specialist – an ophthalmologist. The huge variety of these devices allows the specialist to easily choose the right one, focusing on clinical indications and the client's wishes.
Optical lenses
They are used to correct vision defects such as farsightedness, nearsightedness, presbyopia, and astigmatism. These devices will be an invaluable find for people who prefer active recreation and engage in sports. They are very popular among the younger generation.
Unlike glasses, lenses cannot fall off or break at the wrong moment. Such adverse weather conditions as rain and snow do not affect them, and changes in ambient temperature do not cause them to fog up. These factors undoubtedly increase the level of comfort when participating in sports games, hikes, walks, etc.
It is also worth noting the aesthetic appearance of lenses, which helps with the complex of wearing glasses. For example, if a person has very strong nearsightedness or farsightedness and needs to wear thick glasses that are very noticeable, optical contact lenses are an invisible alternative.
Cosmetic lenses
Cosmetic lenses are used to change eye color, to give the iris greater expressiveness. Modern colored contact lenses can enhance the natural color of the iris or radically change it due to dyes applied to the lens. They can be used to mask various eye defects, such as iris colobomas and other similar ones.
This type of lens has reduced air permeability due to the dye components. They are also widely used in the entertainment industry (cat eye, demonic eye, etc.). These devices are produced with or without optical power.
Therapeutic contact lenses
This type of lens is most often made of soft materials. It protects the cornea from friction of the eyelids when blinking, and due to its bandage properties and hydrophilicity, it accelerates the healing process. These lenses can be used as a container for prolonged-release medications.
Therapeutic lenses are used in the treatment of dry and neurotrophic keratoconjunctivitis, erosion, corneal ectasia, ulcers, bullous keratopathy, edema, keratitis, dystrophy, and other diseases.