What Is Dry Eye?
Dry eye disease is a chronic, multifactorial condition that affects the tear film and ocular surface. It occurs when your eyes either don’t produce enough tears or produce poor-quality tears, leading to inflammation, irritation, and blurred vision. At Accuvision Dry Eye, our expert team is focused on identifying the underlying cause of your symptoms and offering long-lasting relief through personalized treatment plans.
Understanding Tears and Eye Health
Healthy eyes depend on a stable and well-balanced tear film, which is essential for keeping your eyes comfortable, clear, and protected. The tear film is made up of three crucial layers:
- Mucin Layer: Produced by cells on the eye’s surface, this layer helps spread tears evenly over your cornea.
- Aqueous (Water) Layer: Secreted by the lacrimal glands, this watery layer provides moisture and delivers essential nutrients to the eye.
- Lipid (Oil) Layer: Produced by the meibomian glands located along the edges of your eyelids, this oily layer prevents tears from evaporating too quickly.
Blinking plays a vital role in maintaining eye health by spreading tears uniformly across the eye surface and stimulating the meibomian glands to release oil. When blinking is incomplete or infrequent—such as during extended screen time—the tear film can become unstable, leading to dry spots and irritation.
Meibomian glands are tiny oil glands embedded in your eyelids that keep your eyes lubricated by secreting the lipid layer of the tear film. Dysfunction or blockage of these glands is a common cause of evaporative dry eye disease, where tears evaporate too quickly, causing discomfort and redness.
Chronic inflammation, particularly in conditions such as ocular rosacea, can further compromise tear film stability and eyelid health. In these cases, blood vessel dilation and lid margin redness can worsen symptoms.
Similarly, lid laxity, poor eyelid closure, or an incomplete lid seal—often seen in aging or post-surgical eyelids—can cause tears to evaporate more quickly or drain improperly. To address these more advanced forms of dry eye, targeted treatments like Intense Pulse Light with OptiLight help reduce inflammation and vascular congestion, while Dynamic Muscle Stimulation (DMSt) with OptiLift helps improve eyelid tone, gland activation, and lid seal. By understanding how tears are produced and maintained, you can appreciate why comprehensive treatments that restore tear film balance and eyelid function are essential in managing dry eye disease effectively.
Common Symptoms of Dry Eye Disease
Dry eye symptoms can vary from mild to severe and may fluctuate throughout the day. Common symptoms include:
- Burning or stinging sensation
- Gritty or sandy feeling
- Blurred or fluctuating vision
- Excessive tearing or watery eyes
- Redness or eye fatigue
- Sensitivity to light
- Discomfort with contact lenses
If you’re experiencing any of these symptoms, dry eye could be the cause—and we’re here to help.
What Causes Dry Eye?
Dry eye disease can develop for a variety of reasons, including:
- Meibomian Gland Dysfunction (MGD): Blocked oil glands in the eyelids that disrupt tear film stability
- Hormonal Changes: Common during menopause or pregnancy
- Environmental Factors: Wind, dry air, digital screen use, or exposure to allergens
- Autoimmune Conditions: Such as Sjögren’s syndrome or rheumatoid arthritis
- Long-Term Contact Lens Use: Can reduce tear production over time
- Medications: Antihistamines, antidepressants, and certain blood pressure drugs
Understanding the root cause is the first step in developing a targeted and effective treatment plan.