Description
Carboxymethylcellulose (CMC) Eye Drops are a type of artificial tear solution used to lubricate and moisten the eyes, primarily for individuals experiencing dry eye syndrome or other conditions that cause eye irritation and discomfort. CMC is a water-soluble polymer derived from cellulose, a naturally occurring substance in plants. It is commonly used in ophthalmic products due to its ability to form a protective, hydrating film over the surface of the eye.
Mechanism of Action: Carboxymethyl cellulose works by acting as a viscosity enhancer, forming a thin, lubricating film over the corneal surface. This helps to:
- Hydrate the dry eye surface, preventing irritation.
- Reduce friction during blinking, helping to alleviate discomfort caused by dryness.
- Protect the corneal and conjunctival tissues from damage due to inadequate tear production.
The viscosity of CMC allows it to remain on the surface of the eye for a longer period, providing longer-lasting relief compared to other less viscous artificial tears.
If drops are to be used several times a day, opt for preservative-free formulations, as preservatives in frequent-use eye drops can irritate the eye and lead to toxicity over time.
Never touch the tip of the dropper to any surface to prevent contamination, and always replace the cap tightly after use.
