JPS6321033A - Ophthalmic examination apparatus - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an ophthalmological examination apparatus having a sliding table, a measuring means, and an image display means.

[Prior Art] Conventionally, in ophthalmological examination devices such as fundus cameras, corneal radius of curvature measuring instruments, and objective visual acuity measuring instruments, the examiner looks through an optical viewfinder to perform measurements, but in recent years By incorporating the display means into the ΔI4 instrument, the examiner can now observe with binocular vision, and the strain on the examiner's eyes is significantly reduced. However, in general, in the process of performing 311 determination with the examiner and the subject facing each other with a measuring device in between, it is often impossible to perform J11 determination unless the examiner lifts the eyelid of the examinee. At this time, the examiner approaches the subject by leaning his or her body to the right or left, which may make it difficult to see the screen depending on the location of the image display means, such as a CRT. Δ
The orientation of the image display means for easy viewing differs depending on the right or left side of the 14-point limit and whether the examiner is right-handed or left-handed. It is often placed in a certain position.

Figure 5 is a diagram showing the configuration of a conventional measuring instrument of this type, with the base l
A sliding table 2 is slidably placed on the top, and a measuring section 3 and a video display section 4 are provided on this sliding table 2, and the subject S and the examiner are placed on both sides of the measuring section 3. On the other side, the examiner is holding the control stick 5.

FIG. 6 is a plan view during normal measurement, and FIG. 7 is a plan view when the examiner is lifting the eyelid of the subject S. As can be seen from these figures, in some cases it becomes difficult for the examiner to see the video display section 4, and examiner I is forced to bend his neck or twist his body in an unnatural posture for a long time. Sometimes I am forced to do so.

[Object of the Invention] The object of the present invention is to solve the above-mentioned drawbacks of the conventional example, and also to enable the examiner to perform measurements in a comfortable posture for both right-handed and left-handed examiners, which is particularly effective in long-term examinations such as actual examinations. The purpose of the present invention is to provide an ophthalmological examination device.

[Summary of the Invention] The gist of the present invention for achieving the above-mentioned object is to provide a sliding table that can be slid horizontally on the base, a Δ111 means for the eye to be examined, and an image of the eye to be examined. This ophthalmological examination apparatus is characterized in that it includes a display means, and the display of the image display means can be directed in any direction.

[Embodiments of the Invention] The present invention will be described in detail based on embodiments illustrated in FIGS. 1 to 4. Note that the same reference numerals as in FIGS. 5 to 7 represent substantially the same members.

1 and 2 show the first embodiment, and as in the case of FIG.
A fixed part 3 and a video display part 4 are provided, and the examiner 2, who holds the operating stick 5, and the subject S face each other with these parts in between. The video display section 4 can be oriented in any direction, and as shown in FIG.
is fixed, and the lower part of a second support 11 that is horizontally rotatable is fitted to the first support 10, and a horizontally protruding part from the image display section 4 is fitted onto the upper part of the second support 11. A rotation shaft 12 is rotatably attached. In addition, a friction plate 13 is interposed in these movable connecting parts so that the rotation can be stopped at an arbitrary position, so that the examiner can stop the position by turning the video display part 4 in a direction where it is easy to see. It has become.

FIG. 3 shows a second embodiment, in which means is employed to change the direction by moving the optical system without moving the image display section 4 itself. In this case, the video display section 4 is fixed, for example, on the sliding table 2 with its face upward, and the rotating seat 14. The image on the video display section 4 can be adjusted in a direction that is easy to view via a mirror 16 that can be held in any desired posture by a rotating shaft 15.

FIG. 4 shows a third embodiment, in which the video display section 4 is placed on a fixed base l, and is movable in any direction using the same mechanism as the first embodiment. There is. Even when the examiner moves the slide table 2 to perform JILT determination, the video display unit 4 does not move, so the video screen is easy to see.

Note that rails may be provided on the sliding table 2 in the left-right direction so that the video display section 4 can be moved left and right depending on whether the examiner is right-handed or left-handed, for example.

[Effects of the Invention] As explained above, the ophthalmological examination apparatus according to the present invention allows the image display section to be directed in a direction that is easy for the examiner to see, so that the eyelids of the examinee can be easily seen by the examiner. It becomes easier to provide assistance to the examiner, and the fatigue of the examiner is also reduced.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a first embodiment of an ophthalmological examination apparatus according to the present invention, FIG. 2 is a block diagram of an image display section, FIG. 3 is a block diagram of a second embodiment, and FIG. 4 is a block diagram of a second embodiment. FIG. 5 is a block diagram of the conventional example, and FIGS. 6 and 7 are explanatory diagrams of how to use the conventional example. Reference numeral 1 is a base, 2 is a sliding table, 3 is a measurement section, 4 is an image display section, 5 is an operation stick, and 16 is a mirror. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Scope of Claims] 1. On a base, a sliding table capable of sliding horizontally with respect to the base, measurement means for the eye to be examined, and image display means for the eye to be examined are provided, and a display on the image display means An ophthalmological examination device characterized in that the eye can be directed in any direction. 2. The ophthalmological examination apparatus according to claim 1, wherein the image display means is placed on the sliding table. 3. The ophthalmological examination apparatus according to claim 1, wherein the display direction of the image display means is made variable by rotating a display means holding mechanism. 4. The ophthalmological examination apparatus according to claim 1, wherein the display direction of the image display means is variable by bending the optical path using a reflective surface.