What exam can be performed on the retina during an eye exam?

The fundic exam is specifically designed to assess the retina, making it the correct choice. During this examination, a veterinarian uses an instrument called an ophthalmoscope to visualize the interior surface of the eye, which includes the retina, optic disc, macula, and blood vessels. This allows for the detection of potential issues such as retinal detachment, lesions, or other abnormalities that could affect a dog's vision or overall eye health.

In contrast, an otoscopy is focused on examining the ear canal and drum, while a visual acuity test evaluates the animal’s ability to see clearly without directly assessing the anatomy of the eye. Lens examinations involve evaluating the lens of the eye, which relates more to cataract detection rather than the assessment of the retina. Thus, the fundic exam stands out as the correct option for directly examining the retina during an eye exam.