What Causes Dry, Irritated Eyes

Dry, irritated eyes can stem from a mix of environmental, behavioral, and health-related factors. Prolonged screen time often leads to reduced blinking, which limits tear distribution and leaves eyes vulnerable to dryness. Environmental elements like dry air, wind, or indoor heating can evaporate tears faster, especially in air-conditioned or heated spaces. Contact lens wear, particularly extended use, may disrupt the eye’s natural moisture balance. Medical conditions such as blepharitis—chronic inflammation of the eyelids—or Sjögren’s syndrome, an autoimmune disorder, can reduce tear production or alter their composition. Hormonal changes, like those during menopause, might also affect tear quality. Certain medications, including antihistamines or antidepressants, can have dryness as a side effect. Poor lid hygiene, such as not cleaning eyelids properly, can block oil glands, leading to meibomian gland dysfunction. Addressing these root causes often involves lifestyle adjustments, hydration, or medical intervention, depending on the underlying reason.