From the FDA Drug Label
Topical administration of tetracaine hydrochloride ophthalmic solution results in localized temporary anesthesia. One drop topically in the eye(s) as needed. Discard unused portion. The eye numbing drops are tetracaine hydrochloride ophthalmic solution 1, which is used for localized temporary anesthesia.
- The maximum effect is achieved within 10–20 seconds after instillation, with efficacy lasting 10–20 minutes.
- Tetracaine hydrochloride is the active ingredient in the eye numbing drops 1 and 1.
From the Research
Eye numbing drops, also known as topical ophthalmic anesthetics, are medications that temporarily block pain sensation in the eye, with chloroprocaine 3% gel being a novel and effective alternative to traditional options like tetracaine 0.5% eye drops, as demonstrated in a recent multicenter, randomized clinical trial 2.
Key Characteristics of Eye Numbing Drops
- Common examples include proparacaine (Alcaine), tetracaine (Pontocaine), and lidocaine
- These drops work by preventing nerve cells in the eye's surface from sending pain signals to the brain
- They typically take effect within seconds and last 15-20 minutes
- Primarily used by eye care professionals during examinations, procedures like foreign body removal, or before certain eye surgeries
Important Considerations
- Prescription-only and not intended for home use or self-treatment
- Can mask symptoms of serious eye conditions, delay healing, and potentially damage the cornea if overused
- Repeated use can lead to corneal erosion, infection, and even permanent vision loss
- If experiencing eye pain, it's essential to seek professional medical care rather than attempting to obtain or use these drops on your own