What is topical anesthetic?

Topical Anesthetic

A topical anesthetic is a local anesthetic that is used to numb the surface of a body part. They can be used to numb any area of the skin as well as the front of the eyeball, the inside of the nose, ear or throat, the anus and the genital area. Topical anesthetics are available in creams, ointments, aerosols, sprays, lotions, and jellies. Examples include benzocaine, butamben, dibucaine, lidocaine, oxybuprocaine, pramoxine, proparacaine, proxymetacaine, and tetracaine (also named amethocaine).

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Some articles on topical anesthetic:

Ocular Tonometry - Methods
... Because the probe makes contact with the cornea, a topical anesthetic, such as proxymetacaine, is introduced on to the surface of the eye in the form of an eye drops ... analyser (ORA) is a non-contact (air puff) tonometer that does not require topical anaesthesia and provides additional information on the biomechanical properties of the cornea ... Because the device touches the cornea, topical anesthetic eye drops are used to numb the eye but as with non-contact tonometry, these devices are often used in children and non ...
Skin Biopsy - Types - Curettage Biopsy
... or on small epidermal lesions with minimal to no topical anesthetic using a round curette blade ... The pathologist must be informed about the type of anesthetic used, as topical anesthetic can cause artifact in the epidermal cells ... nitrogen or cryotherapy can be used as a topical anesthetic, however, freezing artifacts can severely hamper the dianosis of malignant skin cancers ...