Exhausted Tears: When Crying Depletes Tear Reservoirs

Physiology

Lacrimal glands produce tears continuously (basal) and reflexively. Prolonged intense crying can temporarily exceed production capacity, leading to tear film depletion. Eyes feel dry, burning, gritty. Recovery occurs over hours as glands replenish.

Psychogenic Lacrimal Gland Dysfunction (PLGD)

Rare condition: chronic dysregulation of tear production (either hyperlacrimation or hypolacrimation) without structural pathology, linked to severe psychological stress. Requires multidisciplinary care (ophthalmology, psychiatry).

Management

• Artificial tears (preservative‑free) for symptomatic dryness.
• Address underlying emotional distress (therapy, support).
• If persistent dry eye, evaluate for Sjögren’s, medications, environmental factors.