Residues of cosmetics or soaps can get on the contact lenses via the hands and contaminate them. To what extent the residues lead to a...

The tear film of the eye is a thin layer of tears that moistens the front part of the eye. The tear film has an optical function for the...

In myopia, the eyeball is too long in relation to its refractive power. The image point of the distant object being viewed is thus...