What is the primary action of Gatifloxacin in treating eye infections?

Gatifloxacin is primarily known for its role as an antibacterial agent, particularly in the treatment of various eye infections. As a fluoroquinolone antibiotic, it works by inhibiting bacterial DNA gyrase and topoisomerase IV, enzymes that are crucial for bacterial replication, transcription, and repair. This action effectively stops the growth of bacteria, making it particularly effective against a range of pathogens responsible for ocular infections such as conjunctivitis and keratitis.

The other options may describe actions that relate to eye care or treatment but do not accurately reflect the principal function of Gatifloxacin. For instance, while some treatments for eye infections may involve reducing inflammation, this is not the primary action of Gatifloxacin. Similarly, lubricating agents are typically separate products used to alleviate dryness and discomfort, and while increased intraocular pressure is a consideration in certain ocular conditions, it is not relevant to the action of Gatifloxacin. Therefore, understanding the primary action of Gatifloxacin is crucial for recognizing its application in ophthalmology.