Dry eye occurs when the tear film fails to protect and lubricate the surface of the eye. Learning how the tear film works and why it breaks down helps patients understand their symptoms.
The tear film is made of three layers, a mix of oils, water, mucus, and antibodies that coat the cornea and keep vision clear.
Dry eye can develop when too few tears are produced or when tears evaporate too quickly, leaving the cornea exposed and inflamed.
An unstable tear film may lead to blurry vision between blinks and a gritty, sandy feeling that worsens without treatment.
Several factors can decrease tear production or increase tear evaporation, and many patients experience more than one cause.
The glands that make tears often slow down after age 50, making dry eye more common in older adults.
Autoimmune disorders such as Sjögren syndrome, rheumatoid arthritis, and vitamin A deficiency can reduce tear production.
Antihistamines, antidepressants, decongestants, hormone replacement, and birth control pills may dry the eyes. Hormonal shifts during pregnancy or menopause can do the same.
Long-term contact lens wear and refractive procedures like LASIK can disturb the corneal surface and lower tear production.
Allergies, smoke, wind, and eyelids that do not close fully all raise evaporation, leading to dry eye symptoms.
Symptoms vary from mild annoyance to significant vision problems. Recognizing them early allows prompt care.
Patients often describe discomfort that interferes with daily tasks.
Dry eye is a chronic condition that can worsen without treatment, leading to persistent inflammation and vision changes.
Simple daily habits can support a healthy tear film and reduce flare-ups.
Follow the 20-20-20 rule by looking 20 feet away for 20 seconds every 20 minutes to encourage blinking and tear spread.
Use lubricating drops as needed. If more than four applications a day are required, choose preservative-free formulas.
Add humidity at home, wear sunglasses in wind, and avoid cigarette smoke to lower evaporation.
Maintain eyelid hygiene with warm compresses and gentle cleansers, drink plenty of water, and consider supplements with essential fatty acids.
If preventive steps are not enough, targeted treatments can restore tear quality and relieve discomfort.
This prescription drop decreases inflammation and stimulates natural tear production, with full benefit often seen after about 90 days.
Another prescription option, Xiidra also reduces inflammation and improves lubrication of the ocular surface.
Tiny plugs placed in the tear drainage ducts keep tears on the eye longer, either temporarily with dissolving collagen or long term with removable plugs.
An in-office procedure gently squeezes clogged oil glands along the eyelids to improve the tear film’s oily layer and slow evaporation.
Applying warm compresses to closed eyelids twice daily can soften gland secretions and enhance oil flow.
This in-office treatment combines heat and gentle massage to clear blocked glands and restore healthy tear oils.
IPL closes abnormal blood vessels that fuel inflammation and melts trapped oils, allowing glands to function normally.
For some patients, specialty contact lenses provide both vision correction and continuous moisture.
The lens rests on the white part of the eye and vaults over the cornea, creating a fluid reservoir of saline that hydrates the surface all day.
Scleral lenses protect the cornea from friction, reduce redness, and improve visual clarity while easing dry eye discomfort.
Below are answers to questions we often hear from patients who struggle with dry eye.
A comprehensive eye exam evaluates eyelids, tear quantity and quality, and health history. Special dyes highlight tear composition and help determine whether low production or rapid evaporation is the main problem.
Without treatment, symptoms may increase. While some causes cannot be cured, many therapies can control inflammation and improve comfort.
Dry eye is usually chronic, but ongoing care can maintain good quality of life and stable vision.
Untreated dry eye can lead to infections, corneal damage, ulcers, and decreased ability to read, drive, or enjoy outdoor activities.
Excess tearing is a reflex response to irritation. These watery tears lack the oil and mucus needed for proper lubrication, so they do not solve the underlying dryness.
