This invention provides a myopia screening device. The first end of the housing is designated as the detection end for testing the subject's eyes. A visual target screen, a screening camera, and an
optical path assembly are all housed within the housing. The visual target screen is located on one side wall of the housing, the
optical path assembly is positioned between the detection end and the visual target screen, and the screening camera is located at the second end of the housing. The screening camera captures a light and shadow image of the subject's
pupil. A processor processes and analyzes the light and shadow image captured by the screening camera. An
input device communicates with the processor and inputs the image seen by the subject on the visual target screen into the processor. This invention enables not only
refractive error testing but also
visual acuity testing and color
blindness / color
weakness testing. Furthermore, this invention can estimate the subject's
visual acuity based on the
refractive error test results, generate a corresponding estimated visual target based on the estimated
visual acuity, and quickly complete the visual acuity test, effectively shortening the visual acuity screening time.