Ophthalmic laser speckle refractometer

Abstract

The invention discloses an ophthalmic laser speckle refractometer. The ophthalmic laser speckle refractometer comprises a right light source barrel, fixed barrels and a left light source barrel, wherein visible light semiconductor laser devices are separately mounted in the right light source barrel and the left light source barrel; beam expanding screens are separately mounted in the right lightsource barrel and the left light source barrel above the visible light semiconductor laser device; light-shading plates are separately mounted at the bottom end of the right light source barrel and the bottom end of the left light source barrel; spiral racks are separately mounted at the top end of the right light source barrel and the top end of the left light source barrel; a shifting gear is mounted on the surface of each spiral rack; a soft rubber sleeve is mounted at the top end of each spiral rack; connecting plates are separately mounted on the surfaces of the fixed barrels; and optometry eyepieces are separately mounted on the top of the fixed barrel. By arrangement of a series of structures, the refractometer is convenient to carry and wear when used, is high in applicability, andcan facilitate automatic optometry of an ophthalmic patient, wearing comfort is improved, and protanopia anerythrochloropsia can be detected.

Description

technical field [0001] The invention relates to the technical field of vision detection, in particular to a laser speckle optometry machine for ophthalmology. Background technique [0002] Optometry is to check the aggregation of light after it enters the eyeball. It takes the emmetropic eye state as the standard to measure the degree of vergence difference between the eye under test and the emmetropic eye. In the actual optometry process, it is mainly to check the deformation of the eyeball. There are two methods, one is to check with an instrument, which can preliminarily measure the deformation of the eyeball, and the other is to try on the lens and wear a pair of glasses with interchangeable lenses to determine the degree of glasses that need to be worn. In the ophthalmology department of the hospital , generally use instrument optometry, but this type of instrument is often fixed in structure, not easy to move, and the operation is more complicated, which requires the c...

AI Technical Summary

Problems solved by technology

[0002] Optometry is to check the aggregation of light after it enters the eyeball. It takes the emmetropic eye state as the standard to measure the degree of vergence difference between the eye under test and the emmetropic eye. In the actual optometry process, it is mainly to check the deformation of the eyeball. There are two methods, one is to check with an instrument, which can preliminarily measure the deformation of the eyeball, and the other is to try on the lens and wear a pair of glasses with interchangeable lenses to determine the degree of glasses that need to be worn. In the ophthalmology department of the hospital , generally use instrument optometry, but this type of instrument is often fixed in structure, not easy to move, and the operation is more complicated, which requires the cooperation between medical personnel and ophthalmological patients to complete, and it is highly professional. There is no one on the market that can facilitate patients An optometry machine for self-use and optometry, and the general optometry machine is expensive, not suitable for patients to use and purchase alone, and can only be supplied to eye hospitals or various optical shops, which has certain limitations

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