Synoptophore capable of switching distant vision mode and near vision mode

Abstract

The invention discloses a synoptophore capable of switching a distant vision mode and a near vision mode. Whether a spherical lens is located in a lens cone or not is quickly switched during use, meanwhile, an angle of a reflecting mirror is adjusted to change a light path, so that quick switching of distant vision and near vision examination and diagnosis is facilitated, the operation convenience is improved, and the examination time is shortened. According to the technical scheme, the synoptophore comprises a base, a connecting arm and two lens barrels, each lens barrel comprises an ocular lens, a reflector and a picture clip, each ocular lens comprises a spherical lens, each spherical lens is detachably connected with the corresponding lens barrel, an opening is formed in the barrel wall of each lens barrel, a lens frame is arranged on the edge of each spherical lens, a matching structure is arranged between each lens frame and an opening of the corresponding lens barrel, and each spherical lens can be fixed in the corresponding lens barrel through the corresponding matching structure, an axis of the spherical lenses and an axis of the lens barrels are located on the same straight line, the reflectors are movably connected with the lens barrels, and the lens barrels are provided with an adjusting mechanism used for adjusting an angle of the reflectors.

Description

technical field [0001] The invention relates to the technical field of ophthalmic examination and treatment, in particular to a synoptic machine capable of switching between far and near vision modes. Background technique [0002] The synoptic machine is mainly used to check the binocular vision function of patients with strabismus and amblyopia, the corresponding situation of the retina and the measurement of strabismus. Retinal correspondence training and amblyopia treatment. It is suitable for children with ametropic amblyopia, anisometropic amblyopia and strabismic amblyopia. It also has a good effect on congenital cataract, nystagmus and amblyopia caused by trauma. [0003] The main structure of the synoptic machine is divided into two parts, namely the power supply part and the mechanical rotating part. There is a metal box at the base of the synoptic machine, which stores the rotating parts and circuits of the machine. There are two metal arms on the seat to connec...

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Problems solved by technology

[0006] The spherical lens installed in the lens barrel of the existing synoptic machine is fixed, and the image observed by the patient through the eyepiece is approximately infinite, which can only be used to check and diagnose the strabismus and visual function of the patient under the condition of far vision. When strabismus and visual function inspection at near vision, it is necessary to make the objects seen by the two eyes overlap at a certain point in the vicinity, that is, the reflected light beams of the two pictures corresponding to the two eyes should be bundled in the front of the eye. At a certain point, the spherical lens in the synoptic machine cannot achieve this effect, so other inspection instruments are needed, which increases the cost of the hospital to purchase the equipment and the cost of the patient's examination. Resistance

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