What causes wind eye?
Feb 24, 2023
Source: Cainiu Health
Dr. Cui Xin
Introduction
Epiphora refers to the phenomenon of tearing when exposed to wind. It may be caused by cold wind stimulating the ocular surface, leading to increased eye secretions and spasmodic contraction of the lacrimal canaliculi, resulting in a narrowed tear duct. It could also result from acute infection of the lacrimal sac by pathogens, where inflammatory stimulation causes obstruction of the tear duct. In addition, when meibomian gland dysfunction leads to excessively rapid evaporation of tears, the cornea becomes exposed to air, triggering reflexive tearing.
Epiphora, commonly known as "wind-induced tearing," refers to the phenomenon of excessive tearing when exposed to wind. It may commonly result from physiological factors, or could be caused by pathological conditions such as acute dacryocystitis or meibomian gland dysfunction.
I. Physiological Factors
In cold weather, exposure to cold wind can irritate the ocular surface, increasing eye secretions and causing spasmodic contraction of the lacrimal canaliculi. This narrows the tear ducts and prevents tears from draining properly, leading to tearing. This is a normal physiological response and usually improves with adequate rest.
II. Pathological Factors
1. Acute Dacryocystitis
Acute infection of the lacrimal sac by viruses, bacteria, or other pathogens can cause inflammation that blocks the tear drainage system. When exposed to cold wind, tears cannot drain effectively, resulting in epiphora. It is recommended to use antibiotic eye drops such as levofloxacin ophthalmic solution, norfloxacin ophthalmic solution, or gatifloxacin ophthalmic solution under medical guidance to control inflammation and relieve symptoms.
2. Meibomian Gland Dysfunction
Poor stability of meibomian gland function leads to rapid evaporation of the tear film when exposed to wind, leaving the cornea exposed to air and triggering reflexive tearing. Under medical supervision, medications such as erythromycin ointment, tobramycin eye drops, or pranoprofen eye drops may be used to alleviate ocular discomfort.
In addition, blocked tear ducts may also be a contributing factor. If any eye discomfort occurs, prompt medical evaluation is essential to avoid delayed diagnosis and treatment.
