USP <771> - Ophthalmic Products - Quality Tests

What it says

General Chapter <771> describes quality tests for products intended for use in the eye, such as solutions, suspensions, ointments and gels. It brings together the quality attributes that matter for these products, including identity, strength, purity, sterility, particulate matter, pH and osmolality, container content and antimicrobial effectiveness for multi-dose products, and points to the related general chapters for the detailed test methods.

Paraphrased for plain-language clarity. Always verify against the current published regulation text.

What it means in practice

• Ophthalmic products are expected to be sterile, so sterility assurance is central, supported by the controls for aseptic processing or terminal sterilization used to make the product.
• Attributes such as pH, osmolality and particulate matter matter for patient comfort and safety, and need to be controlled and tested according to the specification.
• Multi-dose products carry the added risk of contamination during use, which is why preservative systems and antimicrobial effectiveness testing receive close attention.

What inspectors look for

• Whether sterility, particulate matter and antimicrobial effectiveness testing are performed according to the specification and the referenced chapters.
• Whether the contamination controls in the facility and the process are adequate for a sterile product.
• Whether results that fail or trend toward limits are investigated and documented.

Related regulations