What pharmacotherapeutic is most important for a patient with a corneal abrasion?

In the case of a patient with a corneal abrasion, the most important pharmacotherapeutic is Gentamicin Ophthalmic (Genoptic). Corneal abrasions are often susceptible to bacterial infections, especially if there is trauma that disrupts the protective epithelial layer of the cornea. Gentamicin, an aminoglycoside antibiotic, is effective against various types of bacteria that can lead to infection in the eye.

Using Gentamicin can help prevent potential complications from infection, which can worsen the abrasion and lead to more serious issues, including corneal ulcers. In addition to its antibacterial properties, Gentamicin also has anti-inflammatory effects to some extent, which can aid in the healing process.

Other options listed do not address the primary concern of preventing or treating infection in the context of a corneal abrasion. Medications like Olopatadine and Cromolyn are primarily used for allergic conjunctivitis, while Timolol is a beta-blocker used mainly in the management of glaucoma, and does not have any role in treating corneal abrasions or preventing infection in that context.