Where is the center of focus on a posterior pole photograph located?

The center of focus on a posterior pole photograph is accurately located between the macula and the optic disc. This is because standard fundus photographs are typically taken to provide a comprehensive view of both the optic disc and the macula, which are important landmarks in the eye. The macula is responsible for central vision and is where visual acuity is highest, while the optic disc is the point where the optic nerve exits the eye.

In a typical posterior pole photograph, the image is oriented so that the center of focus captures both structures effectively, lying at a point that is not exactly on either one but rather in the space between them. This positioning allows for a balanced view of the areas critical for assessing conditions such as retinal diseases, glaucoma, and other ocular abnormalities.