Which of the following agents is used to treat wet age-related macular degeneration?

Wet age-related macular degeneration (AMD) is a condition characterized by the growth of abnormal blood vessels beneath the retina, which can leak fluid and lead to vision loss. To address this issue, anti-VEGF (vascular endothelial growth factor) agents are specifically designed to inhibit the action of VEGF, a protein that promotes this abnormal growth of blood vessels. By blocking VEGF, these agents help to reduce leakage and swelling in the retina, stabilizing or even improving vision in patients with wet AMD.

The other agents mentioned, such as antibiotics, corticosteroids, and antiviral medications, are not effective in treating wet AMD. Antibiotics are primarily used to treat infections, corticosteroids can reduce inflammation but do not target the underlying issue of abnormal blood vessel formation in this condition, and antiviral medications are aimed at viral infections and have no role in the management of wet AMD. Hence, the use of anti-VEGF agents is critical in the treatment strategy for this type of macular degeneration, making them the correct choice for this question.