Mucus in the eye may indicate the presence of an eye condition. Knowing some of the possible causes for this type of excess drainage may help determine appropriate treatment options. However, if the excess mucus does not improve, or if other symptoms that may accompany the thick drainage do not improve, a person should contact an eye care professional.
Dry Eye
Some people have dry eyes when the eyes do not produce enough tears. However, other people have dry eyes from poor tear quality. The tear film has three layers, and one layer contains mucus. If these layers do not have the right consistency, the film will not function properly. This may result in strands of mucus in the eyes, says MayoClinic.com. Treatment options typically begin with over-the-counter artificial tears. In the beginning, a person may require frequent use of the eye drops to work toward replenishing the tear film and reducing symptoms. If artificial tears do not relieve symptoms, including the appearance of mucus strands, an eye doctor may recommend prescription drops if he discovers an underlying cause for the poor tear film.
Conjunctivitis
An eye infection like conjunctivitis may cause a thick, mucus-like discharge. Many people refer to conjunctivitis as "pink eye" since the infection typically causes redness in the white of the eye. Other symptoms may include swollen eyelids, surface irritation and light sensitivity, says the University of Maryland Medical Center. In most cases, the infection will resolve on its own without treatment. However, some people with a severe case of conjunctivitis may require eye drops to ease discomfort. The mucus discharge will often cause the eyelids to stick shut overnight. Holding a warm, damp cloth to the eyelids will help loosen and remove the mucus.
Corneal Ulcers
Foreign bodies often cause a wound to the cornea, the sensitive outer layer of the eye. This small wound allows bacteria or other microbes to enter the eye and cause an infection of the cornea, called a corneal ulcer. Improper contact lens use may cause corneal ulcers as well. The infected layer of the eye may have a thick drainage with the consistency of mucus. Corneal ulcers require treatment to promote healing and prevent scarring. Treatment typically consists of an antibiotic or antifungal eye drop, depending on the cause of the infection, says the University of Michigan Kellogg Eye Center. As the wound heals, the discharge should lessen. Corneal ulcers require constant attention from an eye doctor to help prevent permanent damage.
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