Study of dry eye syndrome: Focus on causative factors, treatment modalities, quality of life, and preservatives used in eye drops.

Purpose: Dry eye syndrome (DES) is a global issue occurring due to tear deficiency or excessive tear evaporation. It is associated with a variety of symptoms causing ocular discomfort. The purpose of the study was to evaluate causative factors, treatment modalities, quality of life, and preservatives used in eye drops.