Full-automatic visual acuity examination method and device for infants

Abstract

The invention provides a full-automatic visual acuity examination method and an examination device for infants; a stimulus graph can be automatically displayed, and the seeing position, direction and time of eyes of the infant can be automatically recorded and calculated; and meanwhile, a test result can be obtained upon automatic analysis. The full-automatic visual acuity examination device for the infants comprises an eyeball tracking module, a control module, a display module and a visual acuity examination instrument host, wherein the eyeball tracking module and the display module are connected to the visual acuity examination instrument host; the eyeball tracking module is used for locating the seeing position of the human eyes; the display module is used for displaying a pattern for examination; and by virtue of the control module, data communication among the visual acuity examination host, the display module and the eyeball tracking module is achieved.

Description

technical field [0001] The invention relates to a method and device for visual inspection, in particular to a method and device for fully automatic visual inspection of infants. Background technique [0002] Visual acuity is visual acuity, which mainly reflects the visual function of the macular area. Vision examination is of great significance for the early detection and early treatment of ophthalmic diseases. The development process of human vision is as follows: (1) Fetal vision is formed in the 4th week of pregnancy; (2) Newborn: the vision is 0.01-0.02 within one week after birth, and the vision of a one-month-old baby is 0.05-0.1. Between 3 months, the eyeballs will not fixate, but will be attracted by faces, bright or moving objects; (3) 3 months: most children's vision can "follow" moving objects smoothly, Can also fix eyes on objects. Colors and moving objects can attract children; (4) 3 to 6 months: the retina has been well developed, and children can see far fr...

AI Technical Summary

Problems solved by technology

[0004] But the problem that above-mentioned method exists is: method (1)~(5) all needs special trained medical staff to carry out manual operation, and the success of inspection needs the cooperation of the person being tested, and the effect with young children is not good enough, other The examination results are highly dependent on the skill and experience of the examiner, and it is necessary to subjectively judge the direction and position of the infant’s eye movement. The operation is complicated, the time required is long, and accurate results cannot be obtained; It requires skin-to-skin contact with babies, and it takes a long time to stick electrodes and repeat stimulation hundreds of times, so it is difficult to promote clinically.

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