In addition to height and weight, following health data information were collected using a questionnaire: amblyopia, glaucoma, dry eye, hypertension, hypothyroidism, hyperthyroidism, diabetes mellitus, nicotine consumption, alcohol consumption, GnRH analogs, therapy with aromatase inhibitors, chemotherapy, and antibody therapy (Table 2). This evidence concerns the gene GNRH1 and Keratoconjunctivitis sicca.