iTear100: Nasal Neurostimulation for Dry Eye

Dry eye disease affects millions of people, and many find that traditional eye drops provide only short-lived relief without addressing the underlying cause of their symptoms. According to the National Eye Institute, an estimated 16 million Americans have been diagnosed with dry eye disease, though the actual number experiencing symptoms may be significantly higher (NEI, 2024). The iTear100 is an FDA-cleared, prescription neurostimulation device that helps your eyes produce their own natural tears in seconds, without drugs, drops, or surgery. At Greenwich Ophthalmology Associates, our dry eye specialists in the greater NY/CT region evaluate each patient to determine whether nasal neurostimulation is a good fit within a comprehensive treatment plan. When left unmanaged, dry eye disease can lead to progressive changes on the ocular surface, including corneal staining and reduced visual quality, which is why early and consistent treatment is important for preserving both comfort and long-term eye health.

If you have been relying on artificial tears throughout the day or have not found lasting comfort from other therapies, the iTear100 may offer a meaningful step forward. The device is particularly useful for patients who prefer drug-free approaches or who are sensitive to drop ingredients. Patients who wear contact lenses may notice that dry eye symptoms are more pronounced during lens wear, and optimizing the ocular surface before and during contact lens use can make a meaningful difference in wearing comfort and lens tolerance.

The iTear100 may be a good option for patients with aqueous deficient dry eye who need to boost their natural tear production. It is also useful for patients who use artificial tears frequently throughout the day, those who are sensitive to preservatives or other drop ingredients, and patients who prefer drug-free treatment options. We use LipiView diagnostic imaging to evaluate the thickness of the lipid layer of the tear film and assess the structural health of the meibomian glands, providing objective data that guides treatment decisions. Keeping an open dialogue with your eye care provider about how your symptoms change over time helps ensure that your treatment plan stays effective and responsive to your needs.

The iTear100 works well as part of a comprehensive dry eye management plan. Patients with meibomian gland dysfunction may benefit from combining iTear100 with warm compress therapy or in-office gland treatments to address both aqueous production and lipid layer stability. Because the tear film plays a central role in protecting the cornea and maintaining clear vision, any disruption in tear quality or quantity can have a noticeable impact on daily visual function, especially during tasks that require prolonged focus. Our team is available to answer additional questions and help you understand all of your options during a consultation at our Stamford office.

Patients with certain nerve conditions or facial implants near the treatment area may not be candidates for iTear100. During your evaluation, our dry eye specialists will review your medical history and examine your tear production to determine whether the device is right for you. Prescription anti-inflammatory eye drops may be recommended for patients with moderate to severe dry eye disease, as these medications target the underlying inflammation on the ocular surface that contributes to the cycle of dryness and discomfort. Regular monitoring of your ocular surface health allows us to adjust your treatment as needed and address any new concerns that may arise over time.