Author: Tom Cornsweet

Tom Cornsweet

Chief Scientist
Organisation: Brien Holden Vision Diagnostics

Pixels in Fundus Cameras: How many do you need?

Chief Scientist
Organisation: Brien Holden Vision Diagnostics

Standard digital fundus cameras form images of the fundus on an image sensor that consists of an array of sensing elements called pixels.  The greater the number of pixels per millimeter of the fundus, the greater the possible resolution of the image, up to a limit which is discussed below. For example, the greater the…