C-STIM is an advanced neurostimulation device developed for the treatment of dry eye disease through external trigeminal nerve stimulation (eTNS). Designed with patient comfort and ease of use in mind, C-STIM offers a non-invasive solution that stimulates the ophthalmic branch of the trigeminal nerve to naturally increase tear production. The device is compact, portable, and features adjustable intensity settings to suit individual patient needs. Clinically proven and safe, C-STIM is ideal for patients who have not responded well to traditional dry eye treatments such as artificial tears or medications. Its ergonomic design and rechargeable functionality make it suitable for home use, empowering patients to manage chronic dry eye symptoms effectively.