Eye accommodation force detection device and method

Abstract

The invention discloses an eye accommodation force detection device and method. The device comprises a body and an intelligent terminal, the intelligent terminal is in data communication with the bodyin a wireless manner, the body comprises a shell conveniently worn on the head of a tested person, lens groups and stenopeic disks are sequentially arranged in an inner cavity of the shell from far to near, the lens groups change optical paths, the stenopeic disks are provided with light transmission holes and used for testing eye dioptry, a controller for processing and displaying eye accommodation force detection results is arranged on the shell, the lens groups comprise at least one coaxial convex lens and concave lens, the convex lenses approach to the stenopeic disks, the concave lenseschange inside positions of the shell through an adjusting mechanism arranged on the shell, eyes are positioned at the front ends of optical paths of the body, and the intelligent terminal is embeddedinto a terminal of the body. When the device measures eye accommodation force, a single eye needs to be tested, the eye accommodation force can be objectively measured, and the device has the advantages of high accommodation force measuring accuracy and wide adjusted measuring range.

Description

technical field [0001] The invention relates to the technical field of optical equipment, in particular to a device and method for detecting eye adjustment power. Background technique [0002] The human eye is the most precise organ in the human body, and its working environment varies greatly (such as different distances, different lighting conditions, etc.), so the eyes need to be able to adjust according to different working environments in order to see external objects clearly. [0003] For a normal eye, the parallel rays of the outside world form a focal point on the retina after passing through the refractive system of the eye in a completely relaxed state. This eye is called emmetropia, and the refractive power of the eye in this state is called the static refractive power of the eye. However, in daily life, such as fine work and study, the object is located close to the eyes, and the divergent light emitted by the object will focus on the back of the retina, which re...

AI Technical Summary

Problems solved by technology

The traditional eye adjustment ability is detected in ophthalmology hospitals or outpatient clinics for diagnosis, and large and expensive instruments and complex methods are used for refraction evaluation. During the detection process, technicians need to interact with the tested person, and the labor cost is high and difficult. It is suitable for people who are younger or have hearing impairment. At the same time, the detection method is not conducive to the high-frequency monitoring and evaluation of accommodation ability

Images