Dual-purpose ophthalmoscope

Abstract

A dual-purpose ophthalmoscope relates to medical testing equipment, in particular to an improvement of an ophthalmoscope used for examining the eyes of a patient. The dual-purpose ophthalmoscope comprises a lighting system, an observation system and a detection system; the detection system detects the examination position of a user in a virtual case picture in real time to confirm whether the observation position of the user is correct. The ophthalmoscope integrates a high-precision gyroscope, an accelerometer and a geomagnetic field sensor, uses a high-performance microprocessor and advanceddynamics calculation and Kalman dynamic filter algorithm, and can quickly solve the current real-time motion posture of the ophthalmoscope; the posture measurement accuracy is static 0.05 degrees anddynamic 0. 1 degree, and the stability is high. The dual-purpose ophthalmoscope associates the visual angle area of a virtual fundus picture at the same time, and achieves the effect of virtual simulation examination of the fundus. A traditional ophthalmoscope is changed into a dual-purpose ophthalmoscope, an ophthalmoscope for examining the real patient and a virtual ophthalmoscope.

Description

technical field [0001] The present invention relates to a medical detection device, in particular to an improvement of an ophthalmoscope for examining a patient's eye. Background technique [0002] Ophthalmoscope belongs to the eye detection equipment, currently ophthalmoscope can be divided into two types: direct ophthalmoscope and indirect ophthalmoscope. Direct ophthalmoscopy can directly check the fundus without dilating the pupil. The examination is performed in a dark room. The examiner's eyes must be close to the patient's eyes. Use the right eye to check the patient's right eye. Hold the ophthalmoscope in the right hand and sit or stand on the right side of the patient. The other hand of the doctor stretches the patient's eyelid, puts the ophthalmoscope about 20cm in front of the patient's eyes, and uses the +10D lens to check whether the patient's refractive medium is transparent. After checking the refractive medium, you can Start to check the various parts of the...

AI Technical Summary

Problems solved by technology

Furthermore, the fundus usually only has a weak reflectivity with a predominantly red color component, so that highly contrasting color images of the fundus can usually only be produced by means of light sources with strong blue and green components

[0004] Current ophthalmoscopes are single-purpose and in many cases cannot detect the true condition of the patient, and the current ophthalmoscope has poor stability

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