Watery eyes, or epiphora, occur when the eyes produce excess tears or when drainage is reduced. Both irritation and blockage can play a role.
Common Reasons
Reflex tearing is triggered by dry eye, allergies, infections, foreign bodies, or exposure to wind and fumes. Drainage problems arise from narrowed or blocked tear ducts, eyelid malposition, or weak lid closure.
- Paradoxically, dryness is a frequent cause of watering as the eye tries to compensate
- Age‑related changes can narrow the tear outflow system
- In‑turning (entropion) or out‑turning (ectropion) lids disturb tear flow
- Some medications and systemic conditions affect tear drainage
When Assessment Is Needed
Persistent or one‑sided watering, especially with discharge, pain, or swelling at the inner corner, should be investigated. Treatment depends on whether the main issue is irritation, inflammation, or mechanical blockage.
- Lid malposition or duct obstruction may require surgical correction
- Allergic or infective causes respond to targeted medical therapy
- Investigations can include syringing, imaging, or endoscopic assessment
- Early review helps prevent recurrent infection and skin irritation
