CN201929943U

CN201929943U - Anterior chamber depth measuring device with darkroom

Info

Publication number: CN201929943U
Application number: CN 201120008300
Authority: CN
Inventors: 何明光
Original assignee: Zhongshan Ophthalmic Center
Current assignee: Zhongshan Ophthalmic Center
Priority date: 2011-01-12
Filing date: 2011-01-12
Publication date: 2011-08-17
Anticipated expiration: 2021-01-12

Abstract

The utility model discloses an anterior chamber depth measuring device with a darkroom, which comprises a non-transparent eyeshade matching with surrounding forms of eyes of human bodies. A magnifier device with a graduated scale inside is arranged on the end surface of the front end of the non-transparent eyeshade, and an LED light source facing towards the inside of the eyeshade is disposed on a side surface of the non-transparent eyeshade. A device required for realizing lateral illumination of an electric torch is placed in the device, so that operation is easier and more convenient, a dark environment is formed surrounding examined eyes, closure glaucoma can be screened at any places, examination results of a lateral illumination method can be quantized by graduations of the magnifier device, and the anterior chamber depth measuring device can also be easily mastered by non-ophthalmological doctors.

Description

A kind of band dark place anterior chamber depth measuring device

Technical field

This utility model relates to simulates the device of pocket lamp side according to the quantitative measurement anterior chamber depth under a kind of portable dark place environment, can assess anterior chamber depth easily, is mainly used in angle closure glaucoma population at risk's examination.

Background technology

Glaucoma is global topmost irreversibility blinding oculopathy, and is angle closure glaucoma in the main type of glaucoma of China.Early diagnosis, early prevention are the topmost measures that reduces the angle closure glaucoma blinding at present.Because patient is not without any symptom when showing effect for angle closure glaucoma, vision is also normal, so the patient seldom can be found in early days, but can cause the patient's vision forfeiture after the angle closure glaucoma acute attack in several hrs.How the early discovery angle closure glaucoma is ophthalmology medical worker's a focus always.Angle closure glaucoma has the shallow anatomic basis of anterior chamber, by using the camera oculi anterior degree of depth as screening indexes, and high-risk patient that can the early discovery angle closure glaucoma.Traditional anterior chamber's measuring method comprises optics of slit-lamp mensuration, A-mode ultrasonic ripple mensuration etc., but owing to needing the professional to operate and need possessing certain device, is difficult to operate execution in community by the doctor of basic unit.Oblique Flashlight is a kind of easy anterior chamber depth method of estimation, and the examiner uses pocket lamp from the irradiation of the parallel iris of the temporo side of eyes, and the size of the iris shadow by institute's transmission is estimated anterior chamber's the degree of depth.Because simple to operate, differentiate simply, non-ophthalmologist also is easy to grasp, and therefore is widely used in the angle closure glaucoma examination.But there is following shortcoming in this measuring method: 1) iris shadow is subjected to the influence of pocket lamp irradiating angle, has certain variation; 2) extraneous light can influence the pupil size, thereby influences the check result accuracy; 3) the iris shadow size is mainly assessed by naked eyes at present, can't quantize check result.These defectives cause measurement error and variation, are difficult to reach to repeat the accurately purpose of measurement.

The utility model content

The purpose of this utility model is to overcome prior art owing to can't form dark place around the eyeball, influence the technical problem of check result accuracy, provide a kind of mancarried device that can make to form dark place, and be formed with light source in the dark place side and be with rule to quantize testing result, a kind of band dark place anterior chamber depth measuring device of a difficult problem that runs into when solving at present with side according to method examination angle closure glaucoma.

For realizing above purpose, this utility model has been taked following technical scheme: a kind of band dark place anterior chamber depth measuring device, include the light tight eyeshield that is complementary with form around people's eye, on light tight eyeshield front end end face, be provided with the magnifier apparatus that includes rule, on described light tight eyeshield one side, be provided with the led light source in eyeshield.

This utility model is close to eye by light tight eye-shade device, forms the darkroom environment; The parallel eyeball surface of led light source, and can move forward and backward a little, to guarantee that irradiating angle enters parallel iris plane from limbus of corneae; By the size of magnifier apparatus observation iris shadow, and use the rule that adheres to viewing magnifier, the size of quantitative assay iris shadow and corneal diameter; Distribute according to crowd's normal value, formulate the best of iris shadow and corneal diameter ratio and differentiate section, carry out angle closure glaucoma population at risk's differentiation.

Described led light source one end is connected with slider, is provided with chute on the eyeshield side, and described slider is arranged on this chute.The parallel eyeball surface of led light source, and can move forward and backward a little, to guarantee that irradiating angle enters from limbus of corneae, be parallel to the iris plane.

This utility model compared with prior art has following advantage: the required device of pocket lamp side photograph is placed a device, and operation is more prone to, convenience; Enclose the formation dark situation near the eyes being examined, anywhere the examination angle closure glaucoma; Can quantize side according to the method check result by the magnifier apparatus scale, non-ophthalmologist also is easy to grasp.

Description of drawings

Fig. 1 is this utility model measuring device structural representation ();

Fig. 2 is this utility model measuring device structural representation (two);

Fig. 3 is worn to the eye sketch map for this utility model measuring device;

Fig. 4 uses sketch map for this utility model measuring device;

The light tight eyeshield of description of reference numerals: 1-, 2-magnifier apparatus, 3-slider, 4-LED light source, 5-iris, 6-rule, 7-chute.

The specific embodiment

Below in conjunction with the drawings and specific embodiments content of the present utility model is described in further details.

Embodiment:

See also Fig. 1 to shown in Figure 2, a kind of band dark place anterior chamber depth measuring device, include the light tight eyeshield 1 that is complementary with form around people's eye, light tight eyeshield 1 is made by the black non transparent material, its edge that contacts with application on human skin is a soft silica gel, eyeshield 1 can coincide with eye is fine, enclose the formation dark situation near the eyes being examined, on light tight eyeshield 1 front end end face, be provided with and have scale and can amplify 10 times the magnifier apparatus that includes rule 62, be located at and check the eye dead ahead, the observed object size of energy measurement is provided with the led light source 4 in eyeshield 1 on light tight eyeshield 1 one sides.

Led light source 4 one ends are connected with slider 3, are provided with chute 7 on eyeshield 1 side, and slider 3 is arranged on this chute 7, and led light source 4 can be controlled by outside sliding button 3, and moves forward and backward, to adapt to different eye forms.

The operation of present embodiment is as follows: please in conjunction with consulting Fig. 3 and shown in Figure 4, portable anterior chamber depth assessment side placed according to device be examined at the moment, allow the person under inspection cover branch hole with hands, be examined the eye fixation dead ahead, light tight eyeshield 1 is close to be examined and is enclosed skin near the eyes, encloses the formation dark situation near the eyes being examined.Open side led light source 4, by slider 3 led light source 4 is moved forward and backward at chute 7, make led light source 4 be positioned at the positive side of eyeball, be examined eye by magnifier apparatus 2 observations, move horizontally magnifier apparatus 2, magnifier 2 is positioned at be examined a dead ahead, by magnifier apparatus with rule 6 measure and be examined cornea horizontal diameter and horizontal direction iris 5 shade length.

Present embodiment is divided into antero posterior axis and trunnion axis with eyeball, and iris 5 is equivalent to trunnion axis, and axis oculi is equivalent to antero posterior axis, led light source 4 is in the eyeball side, and is vertical with the eyeball antero posterior axis, parallel with iris, and magnifier apparatus 2 is parallel with the iris face, with axis oculi be vertical.

Above-listed detailed description is at the specifying of this utility model possible embodiments, and this embodiment is not in order to limiting claim of the present utility model, does not allly break away from the equivalence that this utility model does and implements or change, all should be contained in the claim of this case.

Claims

1. be with dark place anterior chamber depth measuring device for one kind, it is characterized in that: include the light tight eyeshield (1) that is complementary with form around people's eye, on light tight eyeshield (1) front end end face, be provided with the magnifier apparatus (2) that includes rule (6), on described light tight eyeshield (1) one side, be provided with the led light source (4) in eyeshield (1).

2. band dark place anterior chamber depth measuring device as claimed in claim 1 is characterized in that: described led light source (4) one ends are connected with slider (3), are provided with chute (7) on eyeshield (1) side, and described slider (3) is arranged on this chute (7).