Proxymetacaine is a topical anesthetic used to reduce the pain associated with eye and ear procedures. It is a combination of the anesthetics oxybuprocaine and proxymetacaine hydrochloride, which work together to numb the area that is being treated. It is commonly used for minor surgical procedures in the eyes and ears, such as corneal abrasions, cataract removals, and foreign body removal. Proxymetacaine is applied directly to the area of treatment before the procedure is performed. It works quickly and can help reduce discomfort and pain during the procedure. Proxymetacaine is available in both liquid and gel forms. It is generally safe and well tolerated, but side effects may include temporary stinging or burning.
Proxymetacaine is a medication used as a topical anesthetic for the eye [1]. Here's a breakdown of its key aspects:
Type: Local anesthetic (ophthalmic)
Main Use: Numbing the surface of the eye for short periods of time. This allows ophthalmologists (eye doctors) to perform various procedures on the eye without causing discomfort.
How it Works: Proxymetacaine works by reversibly blocking nerve impulses in the eye, preventing the sensation of pain. The exact mechanism is still being explored, but it's believed to involve affecting the permeability of neuronal membranes to sodium ions [2].
Procedures Proxymetacaine Can Be Used For:
- Tonometry: Measuring pressure inside the eye
- Gonioscopy: Examining the drainage angle of the eye
- Removing foreign objects from the eye
- Stitches removal on the cornea or conjunctiva
- Other short corneal and conjunctival procedures
Important Points:
- Proxymetacaine comes as eye drops and is administered by a healthcare professional.
- It acts quickly, with numbness starting within 30 seconds and lasting for 15 minutes or more [1].
- There can be side effects like temporary stinging, burning, or blurred vision.
- Proxymetacaine should not be used if you have an allergic reaction to it or certain other ingredients in the eye drops [3].