Understanding Dry Eye Disease.

Dry eye disease is a chronic condition in which your eyes either don’t produce enough tears or produce tears that evaporate too quickly due to poor quality. The tear film — made up of oil, water, and mucin layers — becomes unstable, leaving the corneal surface exposed and unprotected. This leads to inflammation, irritation, fluctuating vision, and discomfort that can interfere with everyday activities like reading, driving, and screen use.

Dry eye can be caused by a wide range of factors. The most common cause is meibomian gland dysfunction (MGD), where the oil-producing glands in the eyelids become blocked or dysfunctional. Other causes include aging, hormonal changes (especially after menopause), medications such as antihistamines and antidepressants, autoimmune conditions like Sjögren’s syndrome, environmental factors like air conditioning and low humidity, prolonged screen time, and prior eye surgeries such as LASIK.

Yes, dry eye disease is typically a chronic, progressive condition. While it cannot be permanently cured in most cases, it can be effectively managed with the right combination of treatments. With consistent use of lubricating drops, prescription medications, lifestyle modifications, and in-office procedures when needed, most patients experience significant, lasting relief. Ongoing management is typically needed to maintain comfort long-term.

The two main types of dry eye disease differ in their underlying mechanism. Evaporative dry eye, which accounts for up to 86% of cases, is caused by meibomian gland dysfunction — the oil glands in the eyelids become blocked, so tears evaporate too quickly from the eye’s surface. Aqueous-deficient dry eye occurs when the lacrimal glands don’t produce enough of the watery component of tears. Many patients actually have a combination of both types. A comprehensive evaluation at Soni Vision Institute can determine which type you have and guide the most effective treatment.

The most common dry eye symptoms include a burning or stinging sensation, a gritty or sandy feeling (like something is in your eye), excessive tearing, intermittent blurry vision that clears after blinking, redness, sensitivity to light, eye fatigue, and difficulty wearing contact lenses. Symptoms often worsen throughout the day, particularly during activities that reduce blinking such as reading or using screens, or in dry, air-conditioned environments.

Yes, dry eye is a common cause of fluctuating or intermittent blurry vision. An unstable tear film creates an irregular optical surface on the cornea, distorting the way light enters the eye. Vision may temporarily clear after blinking, only to blur again moments later. This visual disruption can be particularly noticeable during extended reading, driving, or computer work. Treating the underlying dry eye typically restores more stable, comfortable vision.

Dry eye is diagnosed through a comprehensive eye evaluation that may include several tests. Your doctor will review your symptoms and medical history, examine the eyelids and ocular surface under a slit lamp, measure your tear production (Schirmer’s test), assess the quality and stability of your tear film (tear break-up time), and evaluate the health of your meibomian glands. Special dyes may be used to highlight areas of dryness or damage on the corneal surface. These tests help determine the type and severity of your dry eye so treatment can be tailored to your specific needs.

Yes, contact lens wear is a well-known contributing factor to dry eye symptoms. Contact lenses can disrupt the tear film, increase tear evaporation, and reduce corneal sensitivity over time. Many long-term contact lens wearers develop symptoms of dryness, irritation, and discomfort — often referred to as contact lens-related dry eye. Switching to daily disposable lenses, using rewetting drops, or exploring vision correction options like LASIK or EVO ICL may help reduce dependence on contacts.

Artificial tears are over-the-counter lubricating eye drops designed to supplement your natural tear film. They provide immediate, temporary relief by adding moisture to the eye’s surface and reducing friction during blinking. Preservative-free formulations are recommended for patients who use drops more than four times a day, as preservatives can irritate sensitive eyes over time. While artificial tears are often the first step in dry eye management, they address symptoms rather than the underlying cause — so many patients benefit from additional treatments for lasting improvement.

When over-the-counter drops aren’t enough, prescription medications can target the underlying inflammation that drives dry eye disease. Cyclosporine and lifitegrast eye drops work by reducing ocular surface inflammation and helping your eyes produce more of their own natural tears over time. These medications typically require consistent daily use for several weeks before patients notice full improvement. Your doctor may also recommend short-term anti-inflammatory drops or oral supplements like omega-3 fatty acids as part of a comprehensive treatment plan.

Punctal plugs are tiny, biocompatible devices inserted into the tear drainage ducts (puncta) in your eyelids to slow tear drainage. By keeping your natural tears on the eye’s surface longer, they help maintain adequate moisture and reduce dryness symptoms. The procedure is quick, painless, and performed in the office with no downtime. Plugs can be temporary (dissolvable) or semi-permanent, and they are especially effective for patients with aqueous-deficient dry eye who don’t produce enough tears.

Yes, untreated dry eye can significantly impact cataract surgery planning and outcomes. An unstable tear film can interfere with the accuracy of preoperative measurements used to select the right lens implant, potentially leading to less precise results. Dry eye symptoms can also flare up after surgery due to the procedure’s temporary effect on the corneal surface. That’s why your surgeon will evaluate and optimize your tear film before surgery to ensure the best possible visual outcome.

Prolonged screen time is a significant contributing factor to dry eye symptoms. Studies show that we blink up to 66% less frequently when using digital devices, which allows tears to evaporate more quickly from the eye’s surface. While screen time alone may not cause the disease, it can worsen existing dry eye and trigger symptoms in people who are predisposed. The 20-20-20 rule can help: every 20 minutes, look at something 20 feet away for 20 seconds.

Several lifestyle adjustments can meaningfully reduce dry eye symptoms. Take regular breaks from screens using the 20-20-20 rule. Use a humidifier in dry indoor environments, especially during winter or in air-conditioned spaces. Wear wraparound sunglasses outdoors to protect against wind and dry air. Stay well hydrated and consider adding omega-3 fatty acids to your diet through fish, flaxseed, or supplements. Practice consistent eyelid hygiene with warm compresses and gentle lid scrubs. Position your computer screen slightly below eye level so your eyelids cover more of the eye’s surface, reducing evaporation.

In most cases, dry eye disease does not resolve on its own. It is a chronic condition that tends to worsen over time without treatment, as ongoing inflammation can damage the tear-producing glands and the ocular surface. Some patients experience temporary dry eye triggered by medications, environmental changes, or recovery from eye surgery — and in those cases, symptoms may improve once the trigger is removed. However, if dry eye symptoms persist for more than a few weeks, it’s important to see a doctor for a proper evaluation and treatment plan to prevent progression.