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Dry Eye Causes: What Is Behind Your Symptoms and How We Can Help
Medical Conditions That Can Cause Dry Eye
Many systemic health conditions affect the glands and nerves that control tear production and eyelid function. Addressing these underlying conditions is an essential part of managing dry eye effectively.
Autoimmune conditions cause the immune system to attack its own tissues, including the glands that produce tears. Sjogren (SHOW-gren) syndrome is one of the most common autoimmune causes of dry eye we diagnose and evaluate.
- Rheumatoid arthritis can reduce tear production
- Lupus may cause dry eye alongside other symptoms
- Inflammatory conditions often require specialized treatment
- Coordinating care with your rheumatologist leads to better outcomes for both conditions
Thyroid problems can affect the eyes in several ways. Thyroid eye disease can cause the eyelids to retract and the eye to protrude, which may prevent complete eyelid closure and increase moisture loss from the eye surface. Hypothyroidism can also contribute to dry eye by reducing tear production and gland function in some people, and checking thyroid levels may be part of our evaluation when we suspect this connection.
Diabetes can damage the nerves that signal your tear glands to produce tears. High blood sugar levels may also affect the quality of your tears and the health of your cornea. People with diabetes are more likely to develop dry eye and may experience more severe symptoms, so keeping blood sugar well controlled is important for protecting your eyes.
Rosacea, eczema, and other skin conditions often extend to the eyelids. Eyelid rosacea causes inflammation that blocks the meibomian glands and reduces oil production in the tear film.
- Seborrheic dermatitis creates flaky skin around the eyes
- Psoriasis can affect eyelid skin and gland function
- Treating the skin condition often improves dry eye symptoms
- Special eyelid hygiene routines are frequently recommended
Blepharitis (blef-uh-RY-tis), which is inflammation of the eyelid margins, is a particularly common cause of evaporative dry eye. Demodex mites can overgrow on eyelashes and eyelid margins, contributing to chronic inflammation and gland blockage that worsens symptoms over time.
The nerves around your eyes detect dryness and trigger tear production. Damage to these nerves from surgery, injury, or certain diseases disrupts this feedback loop and can significantly reduce tear output.
LASIK and other eye surgeries can temporarily reduce corneal sensation and tear production. Most people recover normal function within several months, but some develop chronic dry eye that requires ongoing management over the long term.
Medications and Substances That Trigger Dry Eye
A surprising number of common medications can reduce tear production or disrupt the tear film. Bringing a complete medication list to your appointment helps our eye doctors identify possible triggers more efficiently.
Many medications used to treat high blood pressure and heart conditions can reduce tear production. Beta blockers and diuretics are common culprits we see regularly in practice. If you take these medications and develop dry eye, do not stop them without talking to the prescribing doctor first. We may recommend preservative-free artificial tears or other treatments to manage your symptoms while you continue necessary cardiac medications.
Allergy medications work partly by drying up secretions throughout the body, including tears. Both over-the-counter and prescription antihistamines can contribute to dry eye symptoms.
- Decongestants can worsen dryness by reducing secretion throughout mucous membranes
- Long-term use increases dry eye risk
- Newer antihistamines may have less drying effect for some people
- Talk to our eye doctors about alternative allergy management strategies
Many psychiatric medications have anticholinergic effects that reduce tear production and saliva. Tricyclic antidepressants and some SSRIs are particularly likely to cause dry eye. Your mental health is important, and you should never discontinue these medications on your own. Our team can help you manage dry eye symptoms while you continue treatment for depression or anxiety.
Isotretinoin and other systemic retinoids are well-established causes of dry eye. These medications affect the meibomian glands and reduce oil production in the tear film.
- Dry eye may develop within weeks of starting treatment
- Symptoms often improve after stopping the medication
- Preservative-free lubricating drops are important during treatment
- Your dermatologist should monitor you for eye-related side effects
Hormone replacement therapy, birth control pills, and certain pain medications can all affect tear production. Some chemotherapy drugs and immunosuppressants also contribute to dry eye. Additional commonly overlooked triggers include:
- Preserved eye drops, including some glaucoma medications
- Anticholinergic medications for overactive bladder
- Sleep aids and cold medications
- Alcohol, which contributes to dehydration and worsens tear quality
Bring a complete list of all medications and supplements to your appointment. This helps our eye doctors identify possible causes and ensures we recommend treatments that will not interact with what you are already taking.
Lifestyle, Environmental, and Age-Related Causes
Your daily environment and habits play a significant role in how your tear film holds up throughout the day. Many of the most common dry eye triggers are ones you can influence with the right guidance.
When you focus on a screen, your blink rate can drop by more than half. Blinking spreads tears across the eye surface and stimulates oil gland function. Reduced blinking leads to increased evaporation and an unstable tear film, which is why many people notice dry eye symptoms primarily during or after screen use.
- Position screens slightly below eye level to reduce surface exposure
- Follow the 20-20-20 rule: every 20 minutes, look 20 feet away for 20 seconds
- Use preservative-free artificial tears proactively during long screen sessions
- Anti-reflective lens coatings may improve comfort for screen-related strain
Contact lenses can disrupt the tear film through mechanical friction, increased evaporation, and inflammatory effects. Some wearers experience gradual changes in corneal sensitivity, which can affect the tear production signal over time.
If you develop dry eye while wearing contacts, our eye doctors may recommend daily disposable lenses, reduced wearing time, or a period in glasses while we treat the underlying issue. Pain, marked light sensitivity, or worsening redness with contact lens wear can signal a corneal abrasion or infection and needs prompt evaluation.
Low-humidity environments cause tears to evaporate faster. Air conditioning, heating systems, and airplane cabins create especially dry conditions, while wind and ceiling fans accelerate tear evaporation by blowing air directly across the eye surface.
Airflow from fans or CPAP mask air leaks during sleep can cause overnight exposure and contribute to morning dryness symptoms. Smoke from cigarettes, wildfires, or other sources irritates the eye and disrupts tear film stability. Using a humidifier at home and avoiding smoke exposure can meaningfully reduce your symptoms.
Tear production naturally decreases with age. The meibomian glands may become less active, and eyelid tissue can lose tone over time. These changes make dry eye significantly more common in people over 50.
- Menopause-related hormone changes strongly affect tear production and quality
- Women are more likely than men to develop dry eye
- Estrogen changes alter the composition of tears
- Regular eye exams help catch and manage problems early
Eyelid surgery, brow lifts, and facelifts can change how completely your eyelids close. Incomplete closure during sleep allows tears to evaporate overnight and leaves the cornea exposed. If you are considering cosmetic procedures, discuss your dry eye history with both your cosmetic surgeon and our eye doctors before proceeding.
How We Diagnose the Root Cause of Your Dry Eye
A thorough evaluation does more than confirm that your eyes are dry. It helps us understand exactly why your tear film is failing so we can choose the most effective treatments for your specific situation.
Your evaluation begins with a detailed conversation about your symptoms, medical history, and current medications. We ask about your work environment, screen time, and daily activities that might be contributing to your condition. The exam also includes careful observation of how you blink, the condition of your eyelids, and the overall appearance of your tear film.
We may perform a Schirmer test, which uses a small strip of paper placed under your lower eyelid to measure tear production over five minutes. This simple, painless test helps determine whether you are making enough tears.
- Tear break-up time measures how quickly the tear film breaks apart between blinks
- Osmolarity testing measures the salt concentration in tears, with higher levels indicating more severe dry eye
- Inflammatory marker testing may be used to help guide anti-inflammatory treatment decisions
- Results from these tests work together to guide our treatment recommendations
Special imaging allows us to photograph the meibomian glands inside your eyelids. This shows gland structure and dropout, revealing whether glands are blocked, damaged, or missing. Gland expression also allows our eye doctors to examine the quality of the oil being secreted. Thick, cloudy, or reduced oil output is a clear sign of meibomian gland dysfunction that needs to be treated.
We use special stains and a microscope to check for damage to your cornea (the clear front surface of the eye) and conjunctiva (the clear tissue covering the white of the eye). Fluorescein dye highlights areas where surface cells have been damaged. Lissamine green stain reveals dead or damaged cells that would otherwise be invisible.
The pattern and location of staining help us understand which type of dry eye you have and how severe it is. This information is essential for choosing the right treatment approach.
If we suspect an underlying autoimmune condition, we may order blood tests to check for specific antibodies. Thyroid function tests help identify hormonal causes in select cases, and allergy testing can pinpoint environmental triggers.
- Corneal topography may be used to assess surface irregularity when the cornea is affected
- Imaging studies may be needed for certain eyelid structural problems
- We may refer you to other specialists when systemic conditions need coordinated management
Treatment Options Based on the Underlying Cause
Effective dry eye treatment is not one-size-fits-all. Our eye doctors tailor each treatment plan to the specific cause or combination of causes identified during your evaluation.
Warm compress therapy helps melt blocked oil and improve gland function. We recommend applying a clean, warm compress to closed eyelids for about 10 minutes once or twice daily, followed by gentle eyelid massage. Eyelid scrubs remove debris and reduce eyelid margin inflammation that contributes to gland blockage.
In-office procedures may be recommended for moderate to severe gland dysfunction when home therapy alone is not providing sufficient relief. Our team will discuss the most appropriate options based on your exam findings.
Prescription anti-inflammatory eye drops help reduce inflammation on the eye surface. Cyclosporine (Restasis) and lifitegrast (Xiidra) are two commonly used options that target the inflammatory cycle underlying many cases of dry eye. Omega-3 fatty acid supplements may support healthy tear production and reduce inflammation in some individuals, though benefits vary. Talk to your doctor about dosing and potential interactions before starting supplements, especially if you take blood thinners.
- Short-term steroid drops can provide relief during flare-ups but require close monitoring due to risks including increased eye pressure and cataract formation
- Treating any underlying autoimmune disease is essential for long-term improvement
- Coordination with your rheumatologist or other specialist leads to better outcomes
- Most moderate to severe cases require a combination of treatments rather than a single approach
When a medication is contributing to your dry eye, we work with your prescribing physician to explore alternatives when possible. Sometimes switching to a different medication in the same class reduces dry eye symptoms without compromising your overall care.
If continuing the medication is necessary, we focus on managing symptoms effectively. Preservative-free artificial tears, lubricating ointments at night, and prescription treatments such as Restasis or Xiidra can help you stay comfortable while continuing medications you need.
Simple changes to your environment can make a meaningful difference in how your eyes feel day to day. Using a humidifier adds moisture to dry indoor air, and repositioning fans and vents so they do not blow directly on your face reduces tear evaporation.
- Wraparound glasses block wind and help retain moisture around the eye
- Moisture chamber goggles may help in more severe or exposure-related cases
- Adjusting screen height and taking regular breaks prevents screen-related symptom buildup
- Avoiding smoke and other environmental irritants protects your tear film
For more persistent dry eye, we may recommend punctal plugs, which are tiny devices placed in the tear drainage opening of the eyelid to slow tear drainage and keep more moisture on the eye surface. We typically address significant eyelid or surface inflammation before placing plugs, since trapping inflammatory tears can worsen symptoms in some patients.
In cases of severe dry eye that have not responded to conservative care, amniotic membrane placement may be considered to support healing of the eye surface. Autologous serum tears, which are eye drops made from your own blood serum, are another option reserved for specific, difficult-to-treat cases. Our team will discuss what is appropriate based on the severity of your condition and your response to earlier treatments.
Dry eye is usually a chronic condition that benefits from long-term management rather than a single-visit fix. We schedule follow-up visits to assess how well your treatment is working and make adjustments when needed. Your treatment plan may evolve over time as your condition changes, and regular monitoring helps us catch complications early and protect your long-term vision health.
Frequently Asked Questions
These answers address questions we often hear from patients who want to understand their dry eye diagnosis more fully and make confident decisions about their care.
Yes, and this is actually more common than having a single isolated cause. You might have meibomian gland dysfunction alongside medication side effects, or aging-related changes combined with heavy screen use and a dry indoor environment. When multiple factors are present, identifying and addressing each one leads to the best outcomes. This is exactly why a thorough evaluation matters before starting treatment.
Many people see noticeable improvement within weeks to months after discontinuing a medication that contributed to dry eye, but recovery is not always complete or immediate. The timeline depends on how long the medication was taken, how much gland function was affected, and whether other contributing factors are also present. Never stop a prescribed medication without first consulting the doctor who prescribed it, since the underlying condition being treated may carry greater health risks than the dry eye itself.
Some autoimmune conditions that cause dry eye do have a genetic component, so family history can be relevant. Your risk is higher if close relatives have Sjogren syndrome or similar autoimmune conditions. That said, most dry eye results from a combination of genetic predisposition and environmental or lifestyle factors, meaning it is not simply inherited the way some other eye conditions are.
Chronic, severe, untreated dry eye can lead to corneal scarring or ulcers in serious cases, though significant complications are uncommon when the condition is managed appropriately. The cornea depends on a healthy, stable tear film to remain clear and function properly. Early treatment is especially important when there is evidence of corneal breakdown or incomplete eyelid closure, since these situations carry a higher risk of lasting damage.
Some people experience significant discomfort despite having minimal signs of surface damage on examination. This can occur with neuropathic ocular pain, a condition where altered nerve signaling causes persistent discomfort even when the tear film and eye surface appear relatively healthy. Treatment in these cases is often focused on addressing the nerve component of the problem rather than solely trying to increase tear production or reduce evaporation.
Straightforward cases are often diagnosed in a single comprehensive visit, while complex situations involving multiple possible causes may take several appointments and additional testing. In some cases, our eye doctors use a directed trial-and-error approach with different treatments to see what resolves your symptoms most effectively. Most patients have a working diagnosis and an initial treatment plan in place within a few weeks of their first evaluation.
Schedule Your Dry Eye Evaluation at NewView Eye Center
Finding and treating the true cause of your dry eye leads to far better long-term relief than simply managing symptoms day to day. At NewView Eye Center, our experienced eye doctors provide thorough evaluations and personalized treatment plans for patients throughout Northern Virginia. If you are living with persistent dry eye symptoms, we encourage you to schedule an appointment so we can help you find real, lasting comfort and protect your eye health for years to come.
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