JPH0910176A - Optometric apparatus - Google Patents

Optometric apparatus

Info

Publication number
JPH0910176A
JPH0910176A JP7187862A JP18786295A JPH0910176A JP H0910176 A JPH0910176 A JP H0910176A JP 7187862 A JP7187862 A JP 7187862A JP 18786295 A JP18786295 A JP 18786295A JP H0910176 A JPH0910176 A JP H0910176A
Authority
JP
Japan
Prior art keywords
objective
target
value
inspection
optotype
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7187862A
Other languages
Japanese (ja)
Other versions
JP3946277B2 (en
Inventor
Yoshikuni Hosoi
良晋 細井
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nidek Co Ltd
Original Assignee
Nidek Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nidek Co Ltd filed Critical Nidek Co Ltd
Priority to JP18786295A priority Critical patent/JP3946277B2/en
Publication of JPH0910176A publication Critical patent/JPH0910176A/en
Application granted granted Critical
Publication of JP3946277B2 publication Critical patent/JP3946277B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Eye Examination Apparatus (AREA)

Abstract

PURPOSE: To prevent error of inspection attributed to memory by shortening of inspection time by firstly presenting a target of the minimum vision value necessary for checking reliability of an objective measured value and abnormality in viewing function in the checking and inspection of an objective correction value. CONSTITUTION: In the checking and inspection of an objective correction value, this apparatus has an optical system arranged correspondingly to a data (an objective value data) copied in an objective value memory area on an inspection window of a subjective type refractivity inspecting instrument 2 while presenting an inspection target in a target presenting device 4. The target to be presented is, for example, that having a target set with a vision value of 0.5-0.7. Moreover, in a device 4, a vertical mask is applied on optotypes of the target set with the vision value of 0.5-0.7 and the position of the vertical mask is altered dependingly on the right or left of an eye to be inspected. In the presentation of the target, when a person to be tested can read the target with the vision value of 0.5 as the minimum, the objective value data is determined to be reliable and with a judgment that there is no abnormality such as amflyopia, the checking and inspection of the objective correction value is ended. Thereafter, a red green inspection, an inspection for detecting astigmatic axis and an inspection for detecting astigmatic diopter and the like are carried out.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【産業上の利用分野】本発明は、被検眼の視機能を検査
する検眼装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optometry apparatus for inspecting the visual function of an eye to be examined.

【0002】[0002]

【従来の技術】眼鏡レンズやコンタクトレンズを処方す
るための検査では、矯正光学系を検査窓に切換え配置す
る自覚式屈折力測定装置を備えた検眼装置が使用され
る。被検眼には自覚式屈折力測定装置の光学系を介して
検査視標を観察させ、被検者の応答に基づき光学系を調
節して屈折力を検査している。自覚式屈折力測定装置に
よる検査を始めるに際し、他覚式眼屈折力測定装置によ
る他覚値デ−タやレンズメ−タによる眼鏡デ−タに基づ
き光学系を初期設定することは、検査を効率的かつ精度
良く行う上で有効であり、現在はこの方法が広く普及し
ている。ところで、他覚値デ−タに基づいて光学系を初
期設定する場合、その他覚値デ−タの信頼性等を確認す
るための他覚矯正値確認検査を行うことがある。この検
査では、視力値1.0の視標を呈示してこれを判読でき
るかの確認を行っていた。判読できれば他覚値デ−タの
信頼性は高く、被検眼にも弱視等の視機能異常がないと
判断し次の検査に進む。判読できないときは、呈示する
視標を視力値0.9→0.8→0.7…と下げていき、
どこまで判読可能かを調べていた。
2. Description of the Related Art In an examination for prescribing a spectacle lens or a contact lens, an optometry apparatus equipped with a subjective refractive power measuring device for switching and arranging a correction optical system to an examination window is used. The eye to be inspected is made to observe an inspection target through the optical system of the subjective-type refractive power measuring device, and the optical system is adjusted based on the response of the subject to inspect the refractive power. When starting the test with the subjective refractive power measuring device, the initial setting of the optical system based on the objective value data by the objective eye refractive power measuring device and the spectacle data by the lens meter makes the test efficient. This method is widely used nowadays because it is effective and efficient. By the way, when the optical system is initialized based on the objective value data, an objective correction value confirmation test may be performed to confirm the reliability of the other objective value data. In this examination, an optotype with a visual acuity value of 1.0 was presented to confirm whether or not it could be read. If it can be read, the objective value data is highly reliable, and it is determined that the eye to be inspected does not have a visual impairment such as amblyopia, and the next examination is performed. When it is not readable, lower the target to be presented to a visual acuity value of 0.9 → 0.8 → 0.7 ...
I was looking into how readable it was.

【0003】[0003]

【発明が解決しようとする課題】しかしながら、他覚矯
正値確認検査を視力値1.0の視標呈示から始めると、
矯正視力が片眼で1.0以上確保できない被検者も多い
ことから、視標の視力値を下げることが必要な場合も少
なくない。この場合は、検査時間が長くなるという問題
があった。また、視力値1.0の視標はその後の矯正視
力検査等で多く使用され、この段階で1.0の視標を使
用すると被検者が視標を覚えてしまうことがある。殊
に、異なった視力値の視標列を持ち、マスクにより被検
者が判読する視標を特定する構成の視力表の場合、左右
眼それぞれに同一視標列の視標を呈示すると、記憶され
やすい。本発明は、上記問題点に鑑み、検査時間を短縮
し、記憶による検査の誤りを防止する検眼装置を提供す
ることを技術課題とする。
However, when the objective correction value confirmation test is started from the visual target presentation with a visual acuity value of 1.0,
Since there are many subjects whose corrective visual acuity cannot be ensured to be 1.0 or more with one eye, it is often necessary to lower the visual acuity value of the visual target. In this case, there is a problem that the inspection time becomes long. Further, an optotype having a visual acuity value of 1.0 is often used in a subsequent correction visual acuity test or the like, and if the optotype of 1.0 is used at this stage, the subject may learn the optotype. In particular, in the case of a visual acuity table configured to have optotypes having different visual acuity values and to identify the optotypes to be read by the examinee with a mask, when the optotypes of the same optotype are presented to the left and right eyes, the memory is stored. Easy to be affected. In view of the above problems, it is a technical object of the present invention to provide an optometry apparatus that shortens the examination time and prevents an examination error due to memory.

【0004】[0004]

【課題を解決するための手段】上記課題を解決するため
に、本発明は次のような構成を有することを特徴とす
る。 (1) 矯正光学系を駆動して所期の光学系を検査窓に
配置する自覚式屈折力測定装置と、被検眼に視標を呈示
する視標呈示手段と、他覚式屈折力測定装置により得ら
れた測定デ−タを入力する入力手段と、を備える検眼装
置において、他覚矯正値確認検査開始時に前記入力手段
により入力された測定デ−タに基づいて矯正光学系を初
期設定する矯正光学系制御手段と、測定デ−タの信頼性
又は視機能異常を判断するために必要な最低視力値の視
標を含む視標を呈示する視標制御手段と、を有すること
を特徴とする。
In order to solve the above-mentioned problems, the present invention is characterized by having the following configuration. (1) A subjective refractive power measuring device that drives a corrective optical system to dispose a desired optical system on an inspection window, an optotype presenting device that presents an optotype to an eye to be inspected, and an objective refractive power measuring device. In the optometry apparatus including the input means for inputting the measurement data obtained by the above, the correction optical system is initialized based on the measurement data input by the input means at the start of the objective correction value confirmation test. A correction optical system control means and an optotype control means for presenting an optotype including an optotype having a minimum visual acuity value necessary for judging reliability of measurement data or visual function abnormality. To do.

【0005】(2) (1)の視標制御手段は、前記最
低視力値を持つ視標を下限として含む異なる視力値構成
の視標を呈示することを特徴とする。
(2) The optotype control means of (1) is characterized by presenting optotypes having different visual acuity values including the visual target having the lowest visual acuity value as a lower limit.

【0006】(3) (1)又は(2)の最低視力値を
持つ視標とは、視力値0.5を持つ視標であることを特
徴とする。
(3) The visual target having the minimum visual acuity value of (1) or (2) is a visual target having a visual acuity value of 0.5.

【0007】(4) (1)の視標制御手段は、さらに
検査眼に対応して視標を変更する変更手段を持つことを
特徴とする。
(4) The optotype control means of (1) is characterized by further having a changing means for changing the optotype corresponding to the eye to be inspected.

【0008】(5) (4)の変更手段とは呈示視標に
マスクをかけるマスク手段であることを特徴とする。
(5) The changing means of (4) is characterized in that it is a masking means for masking the presented visual target.

【0009】[0009]

【実施例】以下、本発明の一実施例を図面に基づいて説
明する。図1は実施例である検眼装置の全体構成を示す
外観図である。1は被検者と検者の間に配置される検眼
テ−ブルである。2は自覚式屈折力測定装置であり、自
覚式屈折力測定装置2は種々の光学素子を検眼窓11に
切換え配置する。3は測定用指標を被検眼眼底に投影し
眼底の投影指標像を受光手段で検出して眼屈折力を測定
する他覚式眼屈折力測定装置である。この他覚式眼屈折
力測定装置3は、検眼テ−ブル1上をスライド可能な移
動トレイに載置されており、自覚検眼に先立つ他覚検査
時に検眼テ−ブル1の中央位置に移動して、測定を実行
する。4は検査視標を呈示する投影式の視標呈示装置で
ある。5は自覚式屈折力測定装置2及び投影式視標呈示
装置4を操作するためのコントロ−ラ、6は各装置の通
信中継を行うリレ−ユニットである。
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is an external view showing the entire configuration of the optometry apparatus according to the embodiment. Reference numeral 1 denotes an optometry table arranged between examinees. Reference numeral 2 denotes a subjective-type refractive power measuring device, and the subjective-type refractive power measuring device 2 switches and arranges various optical elements on the optometry window 11. Reference numeral 3 denotes an objective eye refractive power measuring device which measures a refractive index by projecting a measurement index on the fundus of the eye to be examined and detecting a projected index image of the fundus by a light receiving means. This objective eye refractive power measuring device 3 is placed on a movable tray that can slide on the optometry table 1, and moves to the central position of the optometry table 1 during the objective test prior to the subjective optometry. And perform the measurement. Reference numeral 4 is a projection-type optotype presenting apparatus for presenting an examination optotype. Reference numeral 5 is a controller for operating the subjective refractive power measuring device 2 and the projection optotype presenting device 4, and 6 is a relay unit for relaying communication between the respective devices.

【0010】図2はコントロ−ラ5を上から見た図であ
る。30は検眼情報を表示するディスプレイであり、デ
ィスプレイ30には種々の情報を切替え表示できるよう
にドットマトリックス画面を使用している。31はスイ
ッチ部であり、スイッチ部31には、ディスプレイ30
の表示画面をメニュ−画面に切り替えるメニュ−スイッ
チ32、表示画面上に表示されたカ−ソルを移動する2
つのカ−ソル移動スイッチ33、実行スイッチ34、自
覚式屈折力検査装置2の光学系を駆動する補助レンズス
イッチ群35、測定モ−ド切換スイッチ群36、測定眼
指定スイッチ群37、数値入力に使用するスイッチやノ
ブスイッチを持つ入力スイッチ群38、他のスイッチと
組み合わせて使用するシフトスイッチ39、視標呈示装
置4を駆動する視標スイッチ群40、プログラム検眼を
実行するスタ−トスイッチ41aやプログラム送りスイ
ッチ41bなどを持つプログラム実行スイッチ群41、
ディスプレイ30の画面下方の所定位置に表示される情
報に対応するファンクションスイッチ群42、視標にマ
スクをかけるスイッチ群43が配置されている。
FIG. 2 is a view of the controller 5 as viewed from above. Reference numeral 30 is a display for displaying optometry information, and a dot matrix screen is used on the display 30 so that various information can be switched and displayed. 31 is a switch unit, and the switch unit 31 has a display 30.
Menu switch 32 for switching the display screen of the menu screen to the menu screen, and moving the cursor displayed on the display screen 2
One cursor movement switch 33, execution switch 34, auxiliary lens switch group 35 for driving the optical system of the subjective refractive power tester 2, measurement mode changeover switch group 36, measurement eye designating switch group 37, for inputting numerical values. An input switch group 38 having switches and knob switches to be used, a shift switch 39 used in combination with other switches, an optotype switch group 40 for driving the optotype presenting apparatus 4, a start switch 41a for executing a programmed optometry. A program execution switch group 41 having a program feed switch 41b and the like,
A function switch group 42 corresponding to information displayed at a predetermined position below the screen of the display 30 and a switch group 43 for masking an optotype are arranged.

【0011】図3は装置の制御を説明するためのブロッ
ク図である。コントロ−ラ5のスイッチ部31からのス
イッチ信号は、所定の処理が施された後にマイクロコン
ピュ−タ回路50に入力される。マイクロコンピュ−タ
回路50には検眼プログラム等の制御プログラムを記憶
したメモリ51と、他覚値デ−タ等を記憶するメモリ5
2が接続されている。マイクロコンピュ−タ回路50は
スイッチ信号をメモリ51に記憶されたプログラムに基
づき各種デ−タに変換し、表示回路53を介してディス
プレイ30の画面を制御する。また、マイクロコンピュ
−タ回路50は、スイッチ信号をマイクロコンピュ−タ
回路55を介して、自覚式屈折力検査装置2及び視標呈
示装置4に送る。マイクロコンピュ−タ回路60は、駆
動回路61を介してモ−タ62を駆動し、弱球面ディス
ク63、強球面ディスク64、補助レンズディスク6
5、クロスシリンダ−ディスク66等を回転させ、所定
の光学系を検査窓に配置する。マイクロコンピュ−タ回
路70は、駆動回路71を介してランプ72を点灯する
と共に、駆動回路73を介しモ−タ74を駆動し、視標
が描かれた視標ディスク75、マスクディスク76を回
転して、所定の検査視標を被検眼の前方に置かれた図示
なきスクリ−ンに投影する。
FIG. 3 is a block diagram for explaining the control of the apparatus. The switch signal from the switch unit 31 of the controller 5 is input to the microcomputer 50 after a predetermined process. The micro computer circuit 50 includes a memory 51 storing a control program such as an optometry program and a memory 5 storing objective value data and the like.
2 are connected. The micro computer circuit 50 converts the switch signal into various data based on the program stored in the memory 51, and controls the screen of the display 30 via the display circuit 53. Further, the micro computer circuit 50 sends a switch signal to the subjective refractive power test device 2 and the optotype presenting device 4 via the micro computer circuit 55. The micro computer circuit 60 drives the motor 62 via the drive circuit 61, and the weak spherical disc 63, the strong spherical disc 64, and the auxiliary lens disc 6 are driven.
5. Rotate the cross cylinder-disk 66 and the like to arrange a predetermined optical system in the inspection window. The micro-computer circuit 70 turns on the lamp 72 via the drive circuit 71, drives the motor 74 via the drive circuit 73, and rotates the optotype disc 75 and the mask disc 76 on which optotypes are drawn. Then, a predetermined test target is projected on a screen (not shown) placed in front of the eye to be inspected.

【0012】マイクロコンピュ−タ回路55には、他覚
式眼屈折力測定装置3やレンズメ−タ9が接続され、送
られてくる測定デ−タをメモリ56に格納する。マイク
ロコンピュ−タ回路50から読み出し指令信号が入力さ
れると、マイクロコンピュ−タ回路55は指定された測
定デ−タをメモリ56から読み出し、コントロ−ラ5側
に転送する。57は測定結果を出力するプリンタであ
り、58はその駆動回路である。
The objective-type eye-refractive-power measuring device 3 and the lens meter 9 are connected to the microcomputer computer 55, and the sent measurement data is stored in the memory 56. When a read command signal is input from the micro computer circuit 50, the micro computer circuit 55 reads the specified measurement data from the memory 56 and transfers it to the controller 5 side. 57 is a printer for outputting the measurement result, and 58 is its drive circuit.

【0013】以上のような構成の装置において、その動
作を説明する。ここでは本装置が持つプログラム検眼を
実行した場合の手順(図4のフロ−チャ−ト参照)に基
づき、自覚検査の最初に行う他覚矯正値確認検査を中心
に説明する。検査を開始するに際し、検者は必要に応じ
て検眼のプログラムの設定を行う。プログラムの設定
は、ディスプレイ30の表示を見ながら、スイッチを操
作して行う。画面上に表示されるメニュ−項目画面(図
示せず)をカ−ソル移動スイッチ33と実行スイッチを
操作してセット画面(図示せず)を開く。セット画面上
に表示される選択設定項目をスイッチ33等で所望のも
のを選択し、実行スイッチを押して入力を完了する。
The operation of the apparatus having the above configuration will be described. Here, the objective correction value confirmation test performed at the beginning of the subjective test will be mainly described based on the procedure (see the flowchart in FIG. 4) when the programmed optometry of the apparatus is executed. When starting the examination, the examiner sets a program for the optometry as necessary. The program is set by operating the switch while watching the display on the display 30. On the menu item screen (not shown) displayed on the screen, the cursor movement switch 33 and the execution switch are operated to open the set screen (not shown). A desired setting item is displayed on the set screen with the switch 33 or the like, and the execution switch is pressed to complete the input.

【0014】他覚式眼屈折力測定装置3を使用した他覚
検査、問診を行った後、スタ−トスイッチ41aを押す
ことにより検眼のプログラムを開始する。プログラム検
眼は裸眼視力検査からスタ−トし、その後は送りスイッ
チ41bを押すことによって、前眼鏡視力検査(前眼鏡
を所持しているとき)、自覚検査、処方値決定の順に進
行させる。他覚式眼屈折力測定装置3により左右眼のS
PH(球面度数)、CYL(乱視度数)、AXIS(乱
視軸角度)の各他覚値デ−タが得られたら、他覚式眼屈
折力測定装置3のプリントスイッチを押すことにより、
これらのデ−タをリレ−ユニット6のメモリ56に記憶
する。その後、コントロ−ラ5の入力スイッチ、他覚値
スイッチを押すことにより、メモリ56に記憶したデ−
タをコントロ−ラ5側のメモリ52の他覚値メモリエリ
アに転送する。また装置は、他覚値デ−タをメモリ52
の自覚値メモリエリアにコピ−し、ディスプレイ30に
は表示回路53を介して他覚値デ−タを表示する(図示
せず)。なお、他覚値デ−タの入力は通信によるデ−タ
転送の他、測定モ−ド切換スイッチ群36、入力スイッ
チ群38の操作により手入力で行ってもよい。
After performing an objective test and an interview using the objective-type eye-refractive-power measuring device 3, the start switch 41a is pressed to start the optometry program. The program optometry starts from the naked-eye visual acuity test, and then the feed switch 41b is pressed to proceed in the order of the anterior spectacle visual acuity test (when the anterior spectacles are held), the subjective test, and the prescription value determination. By the objective eye refractive power measuring device 3, S of the left and right eyes
When the objective value data of PH (spherical power), CYL (astigmatic power), and AXIS (astigmatic axis angle) are obtained, by pressing the print switch of the objective eye refractive power measuring device 3,
These data are stored in the memory 56 of the relay unit 6. After that, by pressing the input switch and the objective value switch of the controller 5, the data stored in the memory 56 is stored.
Data to the objective value memory area of the memory 52 on the controller 5 side. The apparatus also stores the objective value data in the memory 52.
, And the objective value data is displayed on the display 30 via the display circuit 53 (not shown). The objective value data may be manually input by operating the measurement mode changeover switch group 36 and the input switch group 38, in addition to the data transfer by communication.

【0015】検者は、検眼プログラムをスタ−トして裸
眼視力検査を行う。ディスプレイ30の表示画面は裸眼
測定モ−ドに切替わり、裸眼視力値が入力可能になる。
視標呈示装置4は所定の視力値を持つ検査視標を呈示
し、検者は視標スイッチ群40及びスイッチ群43の視
標マスクスイッチで呈示視標を変更することにより裸眼
視力を得る。この場合、被検眼の眼前から自覚式屈折力
検査装置2を除いても良いし、自覚式屈折力検査装置2
の検査窓の片眼を開口、他眼を遮蔽にしても良い。裸眼
視力検査の終了後、送りスイッチ41bを押すと表示画
面には眼鏡有無を確認する旨のメッセ−ジと、眼鏡有無
によるファンクションスイッチ群42のスイッチ操作の
指示が表示される。この指示に従い、眼鏡有りのファン
クションスイッチを押すと、眼鏡視力検査を行うための
眼鏡測定モ−ドに切替わる(眼鏡無しのときは自覚検査
に進む)。
The examiner starts an optometry program to perform an unaided visual acuity test. The display screen of the display 30 is switched to the naked eye measurement mode, and the naked eye visual acuity value can be input.
The optotype presenting device 4 presents an examination optotype having a predetermined visual acuity value, and the examiner obtains naked eyesight by changing the presenting optotype with the optotype mask switches of the optotype switch group 40 and the switch group 43. In this case, the subjective-type refractive-power test device 2 may be removed from the front of the eye to be examined, or the subjective-type refractive-power test device 2 may be removed.
One of the inspection windows may be opened and the other eye may be blocked. When the feed switch 41b is pressed after completion of the naked-eye visual acuity test, a message for confirming the presence or absence of glasses and a switch operation instruction of the function switch group 42 depending on the presence or absence of glasses are displayed on the display screen. According to this instruction, when the function switch with glasses is pressed, the mode switches to the glasses measurement mode for performing the eyeglasses visual acuity test (when there is no glasses, the subjective test is performed).

【0016】眼鏡視力検査を行うときは眼鏡デ−タを入
力する。眼鏡デ−タは他覚値デ−タと同様にレンズメ−
タ9からデ−タ転送によりメモリ56に記憶させ、その
後入力スイッチ、眼鏡スイッチを押すことによりメモリ
52の眼鏡メモリエリアに記憶する(他覚値デ−タと同
じ様に、通信によるデ−タ転送の他、入力スイッチ群3
8の操作による手入力で行ってもよい)。眼鏡視力検査
は眼鏡を装用させた被検者に対して、裸眼視力検査と同
様にして、検査を行う(自覚式屈折力検査装置2の検査
窓の片眼を前眼鏡の度数のレンズ、他眼を遮蔽にしても
良い)。
When carrying out a spectacle visual acuity test, spectacle data is input. The eyeglass data is the same as the objective value data
The data is transferred from the data 9 to the memory 56 and then stored in the spectacle memory area of the memory 52 by pressing the input switch and the spectacle switch (similar to the objective value data, data by communication). In addition to transfer, input switch group 3
It may be manually input by the operation of 8.). The spectacles visual acuity test is performed on a subject who wears spectacles in the same manner as the naked eye visual acuity test (one eye of the inspection window of the subjective refractive power test device 2 is a lens of the power of the front spectacles, etc.). You may block your eyes).

【0017】続いて自覚検査に移る。本装置は自覚検査
開始時の自覚式屈折力測定装置2の初期値を他覚値デ−
タに対応したものにするか、あるいは前眼鏡値デ−タに
対応したものにするかを画面で予め選択できるようにな
っている。以下は他覚値デ−タを選択したときについて
説明する。他覚値デ−タを選択すると、他覚値デ−タの
適否等を確認する他覚矯正値確認検査に移る。検者は自
覚式屈折力検査装置2を被検者の眼前に配置し、検査眼
を指定して検査を行う。装置はディスプレイ30の表示
画面を自覚測定モ−ドに切換える。図5はこのときの表
示例である。中央表示部80には自覚値メモリエリアに
コピ−したデ−タ(他覚値デ−タ)が表示され、明暗反
転表示された部分が変更可能であることを示している。
左右表示部81には他覚値デ−タが表示され、下方表示
部82には現在呈示している視標種類や操作説明などの
メッセ−ジが表示される。
Subsequently, the subjective examination is started. This device uses the objective value data as the initial value of the subjective refractive power measuring device 2 at the start of the subjective test.
It is possible to select in advance on the screen whether the data corresponds to the front eyeglass value data or the front eyeglass value data. The following is a description of when the objective value data is selected. When the objective value data is selected, the process goes to the objective correction value confirmation test for confirming the suitability of the objective value data. The examiner arranges the subjective-type refractive power test device 2 in front of the subject's eye, and designates the examined eye to perform the examination. The device switches the display screen of the display 30 to the subjective measurement mode. FIG. 5 shows a display example at this time. The copied data (objective value data) is displayed in the subjective value memory area on the central display portion 80, and it is shown that the portion highlighted in dark and light can be changed.
Objective value data is displayed on the left and right display portions 81, and a message such as the type of optotype currently presented and an explanation of operation is displayed on the lower display portion 82.

【0018】装置は自覚式屈折力検査装置2の検査窓に
自覚値メモリエリアにコピ−したデ−タ(他覚値デ−
タ)に対応した光学系を配置するとともに、視標呈示装
置4に検査視標を呈示させる。呈示する視標は、例え
ば、視力値0.5〜0.7の視標組を有する視標である
(図6参照)。他覚矯正値確認検査は、左右眼の他覚値
デ−タの信頼性や被検眼に弱視等の視機能異常がないか
を確認するために行うが、本装置はこの確認に必要な最
低視力値を持つ視標を呈示する。本実施例では最低視力
値を0.5としているが、これは自覚検査でのレッド・
グリ−ン検査で視標内部の数字が判読できる視力値であ
り、視力値0.5の視標さえ判読できないときには、他
覚式眼屈折力測定装置3の再測定や被検眼が弱視等によ
り精密検査を要することを意味するからである。
The apparatus has data (objective value data) copied to the subjective value memory area on the inspection window of the subjective refractive power test apparatus 2.
The optical system corresponding to the test target is arranged and the target presenting device 4 is caused to present the test target. The presented target is, for example, a target having a target set having a visual acuity value of 0.5 to 0.7 (see FIG. 6). The objective correction value confirmation test is performed to confirm the reliability of the objective value data of the left and right eyes and whether there is any visual function abnormality such as amblyopia in the eye to be examined. Present an optotype with visual acuity values. In the present embodiment, the minimum visual acuity value is 0.5, which is the red
When the green test is a visual acuity value in which the numbers inside the optotype can be read, and even a visual target with a visual acuity value of 0.5 cannot be read, re-measurement of the objective eye refractive power measuring device 3 or the subject's eye may be amblyopia. This is because it means that detailed inspection is required.

【0019】さらに装置は、この視力値0.5〜0.7
の視標組の視力表に縦マスクをかけ、検査眼の左右によ
り縦マスクの位置を変更する。右眼指定の時には、例え
ば、図6の(a)に示すようにマスクがけにより、左縦
列の視標を呈示し、左眼指定の時には(b)に示すよう
に右縦列の視標を呈示する。もちろんスイッチ群43の
マスクスイッチにより、マスク位置を変えることもでき
る。この視標呈示において、検者は「この視標を上から
順に読んで下さい」のように被検者に質問し、このうち
視力値0.5の視標が最低限判読できれば前述した理由
により、他覚値デ−タは信頼でき、弱視等の異常がない
ものとして他覚矯正値確認検査を終える。
Further, the device has a visual acuity value of 0.5 to 0.7.
Apply a vertical mask to the visual acuity chart of the target set, and change the position of the vertical mask depending on the left and right of the eye to be inspected. When the right eye is designated, for example, as shown in (a) of FIG. 6, a mask is provided to present the left column target, and when the left eye is designated, the right column target is presented as shown in (b). To do. Of course, the mask position can be changed by the mask switch of the switch group 43. When presenting this optotype, the examiner asks the subject, "Please read this optotype in order from the top." Of these, if the optotype with a visual acuity value of 0.5 can be read at least for the reasons described above. The objective value data is reliable, and the objective correction value confirmation test is finished assuming that there is no abnormality such as amblyopia.

【0020】片眼の他覚矯正値確認検査の終了後、検者
は送りスイッチを押すことにより、レッド・グリ−ン検
査、乱視軸検出検査、乱視度数検出検査、過矯正防止の
ためのレッド・グリ−ン検査等を行い、完全矯正値を得
る。同様に、他眼の他覚矯正値確認検査、他覚矯正値確
認検査を行う。前述したように他覚矯正値確認検査で
は、前眼のものとは異なる視標にマスクをかける。検者
はプログラムされた所定の自覚検査を行い、処方値を決
定する。すべての検査が終了したら、プリントスイッチ
を押して検査結果を出力する。
After the objective corrective value confirmation test for one eye is completed, the examiner pushes the feed switch so that the red green test, the astigmatic axis detection test, the astigmatic power detection test, and the red for preventing overcorrection. -Perform a green inspection, etc. to obtain a completely corrected value. Similarly, the objective correction value confirmation test and the objective correction value confirmation test of the other eye are performed. As described above, in the objective correction value confirmation test, a mask different from that of the anterior eye is masked. The examiner conducts a prescribed subjective test to determine the prescription value. When all inspections have been completed, press the print switch to output the inspection results.

【0021】[0021]

【発明の効果】以上説明したように、本発明によれば、
他覚矯正値確認検査に際して他覚測定値の信頼性や視機
能異常の確認に必要な最低視力値の視標を最初に呈示す
るので、検査時間を短縮することができる。また、使用
頻度の高い視力値1.0付近の視標を呈示する必要がな
いので、視標の記憶防止ができる。さらに、右眼と左眼
の指定に応じて初期呈示視標を変更するので、検者はス
イッチ操作をせずに異なる視標を呈示することができ、
記憶に基づく判読を防止して検査精度の向上を図ること
ができる。
As described above, according to the present invention,
At the time of the objective correction value confirmation test, the target with the lowest visual acuity value necessary for confirming the reliability of the objective measurement value and the visual function abnormality is presented first, so that the inspection time can be shortened. In addition, since it is not necessary to present the visual target near the visual acuity value of 1.0, which is frequently used, the memory of the visual target can be prevented. Furthermore, since the initial presentation target is changed according to the designation of the right eye and the left eye, the examiner can present a different target without operating the switch,
It is possible to prevent the reading based on the memory and improve the inspection accuracy.

【図面の簡単な説明】[Brief description of the drawings]

【図1】実施例である検眼装置の全体構成を示す外観図
である。
FIG. 1 is an external view showing the overall configuration of an optometry apparatus that is an embodiment.

【図2】コントロ−ラを上から見た図である。FIG. 2 is a view of the controller as viewed from above.

【図3】装置の制御を説明するためのブロック図であ
る。
FIG. 3 is a block diagram for explaining control of the device.

【図4】本装置が持つプログラム検眼を説明するフロ−
チャ−ト図である。
FIG. 4 is a flow chart for explaining the programmed optometry of this apparatus.
It is a chart.

【図5】他覚矯正値確認検査のときの表示画面例を示す
図である。
FIG. 5 is a diagram showing an example of a display screen at the time of an objective correction value confirmation test.

【図6】他覚矯正値確認検査のときの呈示視標の例を示
す図である。
FIG. 6 is a diagram showing an example of a presented optotype during an objective correction value confirmation test.

【符号の説明】[Explanation of symbols]

2 自覚式屈折力測定装置2 4 投影式視標呈示装置4 3 他覚式眼屈折力測定装置 36 測定モ−ド切換スイッチ群 50,60,70 マイクロコンピュ−タ回路 2 Subjective refractive power measuring device 2 4 Projection target presenting device 4 3 Objective eye refractive power measuring device 36 Measurement mode changeover switch group 50, 60, 70 Microcomputer circuit

Claims (5)

【特許請求の範囲】[Claims] 【請求項1】 矯正光学系を駆動して所期の光学系を検
査窓に配置する自覚式屈折力測定装置と、被検眼に視標
を呈示する視標呈示手段と、他覚式屈折力測定装置によ
り得られた測定デ−タを入力する入力手段と、を備える
検眼装置において、他覚矯正値確認検査開始時に前記入
力手段により入力された測定デ−タに基づいて矯正光学
系を初期設定する矯正光学系制御手段と、測定デ−タの
信頼性又は視機能異常を判断するために必要な最低視力
値の視標を含む視標を呈示する視標制御手段と、を有す
ることを特徴とする検眼装置。
1. A subjective refracting power measuring device for driving a corrective optical system to dispose a desired optical system on an inspection window, an optotype presenting means for presenting an optotype to an eye to be examined, and an objective refracting power. In an optometry device including an input unit for inputting measurement data obtained by the measuring device, an initial correction optical system is based on the measurement data input by the input unit at the start of the objective correction value confirmation test. A correction optical system control means to be set, and an optotype control means for presenting an optotype including an optotype having a minimum visual acuity value necessary for judging the reliability of measurement data or visual function abnormality. A characteristic optometry device.
【請求項2】 請求項1の視標制御手段は、前記最低視
力値を持つ視標を下限として含む異なる視力値構成の視
標を呈示することを特徴とする検眼装置。
2. The optometry apparatus according to claim 1, wherein the optotype control means presents optotypes having different visual acuity values including a visual target having the lowest visual acuity value as a lower limit.
【請求項3】 請求項1又は2の最低視力値を持つ視標
とは、視力値0.5を持つ視標であることを特徴とする
検眼装置。
3. The optometry apparatus according to claim 1, wherein the target having the lowest visual acuity value is a target having a visual acuity value of 0.5.
【請求項4】 請求項1の視標制御手段は、さらに検査
眼に対応して視標を変更する変更手段を持つことを特徴
とする検眼装置。
4. The optometry apparatus according to claim 1, further comprising changing means for changing the optotype corresponding to the eye to be inspected.
【請求項5】 請求項4の変更手段とは呈示視標にマス
クをかけるマスク手段であることを特徴とする検眼装
置。
5. The optometry apparatus according to claim 4, wherein the changing unit is a masking unit that masks the presented optotype.
JP18786295A 1995-06-30 1995-06-30 Optometry equipment Expired - Lifetime JP3946277B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18786295A JP3946277B2 (en) 1995-06-30 1995-06-30 Optometry equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18786295A JP3946277B2 (en) 1995-06-30 1995-06-30 Optometry equipment

Publications (2)

Publication Number Publication Date
JPH0910176A true JPH0910176A (en) 1997-01-14
JP3946277B2 JP3946277B2 (en) 2007-07-18

Family

ID=16213522

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18786295A Expired - Lifetime JP3946277B2 (en) 1995-06-30 1995-06-30 Optometry equipment

Country Status (1)

Country Link
JP (1) JP3946277B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007236639A (en) * 2006-03-09 2007-09-20 Topcon Corp Input device and subjective optometer
JP2007267821A (en) * 2006-03-30 2007-10-18 Topcon Corp Subjective optometer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007236639A (en) * 2006-03-09 2007-09-20 Topcon Corp Input device and subjective optometer
JP2007267821A (en) * 2006-03-30 2007-10-18 Topcon Corp Subjective optometer

Also Published As

Publication number Publication date
JP3946277B2 (en) 2007-07-18

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