How does carboxymethylcellulose work (mechanism of action)? Carboxymethylcellulose acts as a lubricant eye drop to help keep your eyes moist and relieve dry or irritated eyes. CMC Eye Drop is a soothing eye lubricant that provides long-lasting relief from dry eyes by mimicking natural tears and keeping the eyes hydrated. It reduces irritation, redness, and discomfort caused by dryness, screen exposure, or environmental factors. It maintains moisture, improves visual clarity, prevents further eye strain, and improves overall eye comfort. With regular use, it supports eye health, allowing for a more comfortable and irritation-free daily life. Carboxymethylcellulose eye drops are also known as sodium carboxymethylcellulose eye drops , or carboxymethylcellulose eye drops IP , have become a dependent solution for many. It gives relief from dryness and irritation in the eyes, and also provides comfort. Carboxymethyl Cellulose is used to relieve burning, itching, and discomfort of eyes caused due to dryness or exposure to the sun or the wind. Carboxymethyl Cellulose rarely shows any side effects. You may experience eye pain and irritation while using Carboxymethyl Cellulose . These side effects are often temporary and go away on their own. Consult your doctor if these side effects are getting persistent or worse. Carboxymethyl Cellulose eye drops , eye gel, eye ointment and eye injection may ...