JPH04226623A - Ophthalmologic device - Google Patents

Abstract

PURPOSE:To improve the operability of both functions of an autorefractometer and an auto lens meter by providing both of these functions. CONSTITUTION:A measurement control section 3, an auto refractometer section 4 and an operating rod 5 are provided on a stationary base 1. A television monitor 8 and a lens refractive index measuring section 9 are provided side by side on the inspector side of the measurement control section 3. The eye to be examined is aligned by operating the operating rod 5 on the stationary base 1 and sliding a moving base 2 at the time of measuring the refractive index of the eye to be examined. On the other hand, the lens G to be examined is aligned by moving the lens G on the stage of a lens refractive index measuring blade 9 at the time of measuring the refractive index of the lens G to be examined. Since the lens refractive index measuring blade 9 does not hinder the visual field in the display of the television monitor 8, the operability of the two functions is good.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic apparatus used in, for example, ophthalmology clinics and the like, and which has both the functions of an autorefractometer and an autolensmeter.

0002

[Prior Art] Conventionally, when a subject wears glasses, an autorefractometer is used to measure the refraction of the subject's eye, and at the same time an autolensmeter is used to measure the refraction of the glasses worn. It is determined whether the glasses are suitable for the eye being examined.

0003

However, in the conventional example described above, the autorefractometer and autolensmeter are separate devices, which is not only inconvenient in terms of installation space, cost, and measurement time. There is a risk of misunderstanding the combination of both measurement results.

SUMMARY OF THE INVENTION An object of the present invention is to provide an ophthalmologic apparatus that overcomes the above-mentioned drawbacks of the conventional apparatus, has both the functions of an autorefractometer and an autolensmeter, and has good operability.

[0005]

[Means for Solving the Problems] An ophthalmological apparatus according to the present invention for achieving the above-mentioned object includes an autorefractometer, an autolensmeter, and an alignment state display means for an eye to be examined and a lens to be examined on a movable table. The ophthalmologic apparatus is characterized in that the spectacle lens mounting table of the autolensmeter and the alignment state display means are arranged side by side.

[0006]

[Operation] The ophthalmological apparatus having the above configuration can be used when aligning the autorefractometer with the eye to be examined by moving the movable table, or by moving the eyeglass lens on the mounting table and aligning the eyeglass lens with the autolensmeter. When aligning the lens, the eye lens mounting table does not block the field of view of the alignment status display means, so both functions of the autorefractometer and the autolensmeter can be used with good operability.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained in detail based on the illustrated embodiments. 1 is an external side view of one embodiment, FIG. 2 is a front view as seen from the subject side, and FIG. 3 is a rear view as seen from the examiner side. A movable table 2 is placed on a fixed base 1, A measurement control section 3 is fixed to the movable table 2, an autorefractometer section 4 is placed on top of the measurement control section 3, and an operation button 5 is provided on the examiner side of the movable table 2.
An operating rod 5 having a diameter of 1.a is fixed, and when the examiner tilts the operating rod 5, the movable table 2, measurement control section 3, and autorefractometer section 4 are moved in a horizontal plane on the fixed base 1. The autorefractometer section 4 is configured to slide back and forth, left and right, and move up and down relative to the measurement control section 3. A face fixing table 6 is fixed to the fixed base 1 on the subject S side, and the autorefractometer section 4 is attached to the subject S side.
An objective lens 7 facing the eye E to be examined is provided on the side. On the other hand, on the examiner's side of the measurement control section 3, a television monitor 8 and a lens refraction value measuring section 9 are installed side by side, and on the examiner's side of the fixed base 1, results from a printer (not shown) installed inside the apparatus are provided. A printer output section 10 is provided for outputting. As shown in the enlarged side view of FIG. 4, the lens refraction value measuring section 9 includes a test lens mounting table 9a on which the test lens G is placed, and a measurement light flux projecting section 9b facing the test lens mounting table 9a, which is connected to the measurement control section 3. are fixed, and a test lens contact portion 9c is attached to them.
, a projection window 9d is attached, and the lens refraction value measuring section 9 is provided at a high position so that the ear hook end does not come into contact with the movable table 2 when the test lens G is placed on the mounting table 9a. ing. In addition, a fixed base 1, a movable base 2, a measurement control section 3
, the operation stick 5, and the lens refraction value measuring section 9 are electrically connected inside.

[0008] When measuring the eye refraction value of the subject's eye E, the subject S
The face of the person is fixed to the fixed base 1 by the face fixing table 6, and the examiner operates the operation stick 5 to three-dimensionally align the optical system including the objective lens 7 of the autorefractometer section 4. After that, measure the facial refraction value. When the eye E to be examined wears glasses, the lens G to be examined is attached to the lens contacting part 9.
After placing the glasses on the mounting table 9a in contact with C and performing two-dimensional positioning, the light flux is incident on the test lens G from the projection window 9d of the measurement light flux projection unit 9b, and its transmission is The refraction value is measured using a light beam.

To measure the refractive value of the eye E, a specific measurement light beam is incident on the eye, the reflected light beam from the fundus is received by a photoelectric sensor, and the image electric signal is amplified and calculated to determine the refractive power and degree of astigmatism. , a method of calculating the astigmatic axis angle is generally known, and in order to measure the refraction value of the test lens G, a specific measurement light flux is incident on the test lens G, and the change in the refraction state of the transmitted light flux is similarly measured. A common method is to receive light and perform arithmetic processing, and the refractive value measurement of the eye E and the lens G to be examined is performed by a microcomputer in the measurement control section 3. The measurement results can be displayed on the TV monitor 8,
Alternatively, the information is written on a printer paper P and output from the printer output unit 10.

At the time of alignment, the position of the eye E or the lens G to be examined and the alignment mark are displayed on the television monitor 8 and used. Since they are arranged side by side, the operation stick 5 has good operability, and the field of view of the image on the television monitor 8 is not obstructed during alignment. As long as this condition is met, the TV monitor 8 and the lens refraction value measuring section 9 can be arranged at any position. For example, as shown in FIGS. 5 and 6, the lens refraction value measuring section 9 is viewed from the examiner's side. It may be arranged on the left side of the measurement control section 3.

Alternatively, as shown in FIGS. 7 and 8, a new side surface 3a is formed at one corner of the measurement control section 3 to give the measurement control section 3 a pentagonal prism shape, and a lens refraction value measurement section 9 is attached to this side surface 3a.
Further, in these embodiments, the left and right positions of the television monitor 8 and the lens refraction value measuring section 9 can be exchanged.

[0012] It is convenient to switch between the two measurement functions by providing a switch button or by automatically switching by an operation specific to each measurement function. Although an input means may be provided, it is also possible to use the operation button 5a of the operation stick 5.

[0013]

As explained above, in the ophthalmologic apparatus according to the present invention, the spectacle lens mounting table of the autolensmeter and the means for displaying the alignment status of the eye to be examined and the lens to be examined are arranged side by side. Even if the movable stage is moved for alignment in optometric refractive value measurement, or the eyeglass lens is moved for alignment in eyeglass lens refractive value measurement, the view of the display means is not obstructed, and the auto-refract function is used. Both the meter and auto lens meter functions are easy to use.

[Brief explanation of the drawing]

FIG. 1 is a side view of a first embodiment.

FIG. 2 is a front view of the first embodiment.

FIG. 3 is a rear view of the first embodiment.

FIG. 4 is an enlarged side view of a lens refraction value measuring section.

FIG. 5 is a side view of the second embodiment.

FIG. 6 is a front view of the second embodiment.

FIG. 7 is a side view of the third embodiment.

FIG. 8 is a front view of the third embodiment.

[Explanation of symbols]

1 Fixed base 2 Movable platform 3 Measurement control section 4 Auto refractometer section 5 Operation stick 6　Face fixation table 7 Objective lens 8 TV monitor 9 Lens refraction value measurement section

Claims (1)

[Claims] 1. An ophthalmological apparatus in which an autorefractometer, an autolensmeter, and alignment state display means for an eye to be examined and a lens to be examined are mounted on a movable table, the apparatus comprising:
An ophthalmological apparatus characterized in that the spectacle lens mounting table of the autolensmeter and the alignment state display means are arranged side by side.