What causes dry eyes and a gritty feeling?
1. Introduction Dry eyes accompanied by a gritty sensation are typically caused by meibomian gland dysfunction, aqueous tear deficiency, or environmental desiccation. A compromised tear film leaves the corneal surface unprotected, creating microscopic friction that the brain interprets as a foreign body or grit. Ocular surface evaluation and tear break-up time tests guide the use … Read more