There are several reasons for applying colored lenses.
(a) convenience:
Nowadays, every soft lens has a very light tint; this makes the lens easier to recognize in clear liquid. Especially convenient for someone with poor vision who has trouble finding the lenses in the lens case.
(b) cosmetic reasons:
The largest group of color lens wearers wear color lenses because of the cosmetic effect. It is possible to change or influence the iris color. Color lenses are available both with and without prescription and, of course, in a variety of color schemes.
c) medical indication:
Wearing color lenses can also have a medical indication. An eye that has been damaged by an accident or surgery can be made to look normal again with a color lens. These lenses are hand painted and is called an iris print lens. If a patient is greatly bothered by light, a lens that blocks or filters the light can be worn.
Sometimes contact lenses are used to completely cover an eye. This can be chosen when the image in the eye is perceived as disturbing or when there are annoying double images. The lens is then completely black in color.
Color lenses have all the characteristics of soft lenses and also require the same treatment and care. As with any soft lens, it is important to wear a lens with the correct fit and power and to handle it hygienically. It is important to have color lenses, just like any other lens, measured and checked by a contact lens specialist.
A color lens can enhance your own iris color. The own eye color remains visible but can be changed, for example, from light blue to bright blue. This is mainly suitable for light iris color. The color of the iris can also be changed completely, for example from blue to green.