Colored contact lenses can be both graduated (ie they correct some vision defects), and for aesthetic use only (also called "cosmetic lenses"). Furthermore, some variants of this product are therapeutic or similar to prostheses, that is, made to measure to manage or resolve the consequences of traumas and diseases of the cornea, iris and lens.
The choice of colored contact lenses must not be too superficial: it is advisable to buy them only from opticians or authorized dealers and first seek the opinion of an ophthalmologist, to have the right indications for the application and to know in which circumstances it is better to avoid them. Like corrective lenses, in fact, the correct use of colored contact lenses is essential in order not to jeopardize the health of the eye and compromise sight.
and two layers of smooth muscle, whose contraction allows the pupil diameter to vary. In addition to determining the color of our eyes, in fact, the iris acts as a muscular diaphragm, regulating the amount of light that reaches the retina.
Colored contact lenses "simulate" the iris not only in color, but also in various shades, specks and shapes, in other words, they help to enhance and accentuate these characteristics.
The colored contact lenses are transparent in the center, so as not to cover the pupil and allow the user to see clearly.
