Agomelatine is a melatonin drug used to treat depressive disorder. Agomelatine may also some effects on ocular pressures. In this study, we aimed to demonstrate that melatonin decreases intraocular pressures when given depressive patients.

Melatonin has been shown to be effective to decrease intraocular pressure in experimental animal researches. Agomelatine is a melatonin derivative drug approved for the treatment of depression, which is also available in our country. Depending on animal experiments, it can be assumed that agomelatine can decrease intraocular pressure. Demonstrating that agomelatine is effective to reduce eye pressure may give a concurrent treatment of depressive patients with glaucoma. With this it may be possible to treat both diseases at the same time with single drug. In this study, the researchers intended to investigate the changes in ocular tension in normotensive depressive patients treated with agomelatine.

Inclusion Criteria:

• Depressive patients suitable for Agomelatine therapy for the treatment of their primary disease.

Exclusion Criteria:

- Any past history of ocular surgery, ocular trauma or existing ocular diseases

Investigators seek to analyze the intraocular pressure changes depending on Agomelatin treatment. Depressive patients who are deemed suitable for agomelatine treatment on a routine basis by psychiatry clinic will be monitored with regard to intraocular pressure changes. Treatment decision will be given by the psychiatrist independently from patient's enrollment to the study. Then, investigators will measure intraocular pressure before the treatment and one month after the treatment.