Is it possible dry eye syndrome diagnosis in a objective manner?
The lack of tear or its bad quality can produce an important number of ocular surface problems. Optometrists and ophthalmologists have difficulties with the diagnosis of the dry eye pathology because there is not an objective and simple protocol to detect and quantify this pathology.
Recently it has been described a molecule termed Ap4A, which is an intrinsic component of tears. The amount of this molecule is abnormally high in different states of ocular dryness. This molecule behaves as a molecular marker of ocular dryness and its detection and an objective biochemical quantification facilitating the diagnosis. This patented method can be simply used by simply taking one tear sample with a plain Schirmer test.
By using modern techniques it is possible to determine tear concentrations of Ap4A in patients therefore helping the eye specialists to fix an adequate treatment.