Tag: Sterility

Saline solution is a simple mixture of sodium chloride and water, with normal saline specifically containing a 0.9% salt concentration, mirroring the salt level in human tears and blood. Given this simple composition, many people wonder: Can I use sodium chloride as saline solution, or is medical-grade necessary?

In the U.S., glaucoma and dry eye medications account for over 72% of all ophthalmic medication expenditures [1.9.1]. Understanding **what are the properties of ophthalmic preparation** is crucial for ensuring these treatments are safe, stable, and effective for millions of patients.

Yes, saline solution does expire and can become contaminated over time. A sealed, physiological sodium chloride solution typically has a shelf life of around 24 months, but once opened, its sterility is quickly compromised, and it should be used promptly. Ignoring expiration dates or proper storage can lead to bacterial growth and other issues, compromising safety and effectiveness.

Physiological saline, a 0.9% sodium chloride solution, is isotonic with human body fluids, making it a gentle yet effective cleaning agent for medical and hygiene purposes. Understanding what is Physiologica used for reveals its broad utility, especially in sterile, single-dose formats for personal and family care.

According to the FDA, contaminated eye drops and washes have been linked to serious eye infections, underscoring the critical need for proper product hygiene. This is the central principle behind why does Optrex eye bath need to be discarded after a specific period, usually 28 or 90 days after opening, regardless of how much solution remains.