Assessing eye floaters

A system for assessing a floater in an eye of a patient, comprising:

• a display device configured to display a target and a background, the background having an alignment point and an alignment axis, an eye axis of the eye substantially aligned with the alignment axis of the background when the eye is fixating on the alignment point of the background;
• an input device configured to receive patient input from the patient;
• and
• a computer configured to:
• provide target display input to the display device to yield the target moving relative to the background according to a pattern for the eye to follow, the eye axis of the eye moving relative to the alignment axis of the background as the eye follows the moving target;
• receive the patient input indicating that the patient sees the floater;
• record the patient input;
• calculate a severity score according to the patient input, the severity score indicating severity of the floater;
• and
• generate a report that describes the severity score.