Patent ID: 7287857

Claim:
A method for conducting a vision examination by an examiner to screen a patient for amblyopia, comprising: positioning a display medium at a predetermined distance from a patient's eyes sufficient to screen a patient for amblyopia, wherein the display medium individually and successively displays optotypes of different sizes and shapes for enabling the examiner to assess a patient's visual acuity, and wherein the sizes of the optotypes are calibrated for display at the predetermined distance; controlling the display medium to individually present a plurality of optotypes at a plurality of successive levels for the patient to view from the predetermined distance, wherein the optotypes of a same level are of the same size, and each successive level contains optotypes of a successively smaller size; and for each optotype displayed to the patient, requesting the patient to find a matching optotype on a reference to confirm that the patient is able to see the optotype on the display medium, wherein, for each level, a correct response from the patient to a plurality of presented optotypes greater than a minimum number of the individually-presented optotypes is required before proceeding to a next level and determining whether amblyopia is present based on whether a correct response is achieved for the successive levels.