JP3437268B2 - Ophthalmic equipment - Google Patents
Ophthalmic equipmentInfo
- Publication number
- JP3437268B2 JP3437268B2 JP16901694A JP16901694A JP3437268B2 JP 3437268 B2 JP3437268 B2 JP 3437268B2 JP 16901694 A JP16901694 A JP 16901694A JP 16901694 A JP16901694 A JP 16901694A JP 3437268 B2 JP3437268 B2 JP 3437268B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- measurement
- measuring
- still image
- eye
- 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.)
- Expired - Fee Related
Links
Landscapes
- Eye Examination Apparatus (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、眼科病院等で眼科特性
を測定するために使用される眼科装置に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ophthalmologic apparatus used for measuring ophthalmic characteristics in an ophthalmic hospital or the like.
【０００２】[0002]
【従来の技術】従来から、例えば被検眼の角膜径の計測
のような眼科特性を計測する場合には、被検眼像を動画
で画面上に表示して操作手段により位置合わせを行い、
次に別の操作部材を用いて画面上にカーソルを表示し、
このカーソルを動画の被検眼像に合わせるように操作し
て眼科特性の計測を行っている。2. Description of the Related Art Conventionally, when measuring ophthalmic characteristics such as measurement of the corneal diameter of an eye to be inspected, an image of the eye to be inspected is displayed on a screen as a moving image and alignment is performed by an operating means.
Next, display the cursor on the screen using another operation member,
The cursor is operated so as to be aligned with the eye image of the moving image to measure the ophthalmologic characteristics.
【０００３】[0003]
【発明が解決しようとする課題】しかしながら、上述の
従来例においては被検眼像を動画で表示しているので、
被検眼が動く度に画像がずれてしまい、計測が非常に困
難であり、更にカーソル操作には別部材を必要とするた
めに機構が複雑となり、操作も難しいという問題点が生
ずる。However, in the above-mentioned conventional example, since the image of the eye to be inspected is displayed as a moving image,
Each time the eye to be inspected moves, the image shifts, measurement is extremely difficult, and since a separate member is required for cursor operation, the mechanism becomes complicated and operation is difficult.
【０００４】本発明の目的は、上述の問題点を解消し、
簡単な操作で容易に被検眼の計測を行うことのできる簡
素な構成の眼科装置を提供することにある。The object of the present invention is to solve the above-mentioned problems,
It is an object of the present invention to provide an ophthalmologic apparatus having a simple structure capable of easily measuring the eye to be inspected by a simple operation.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
の本発明に係る眼科装置は、被検眼の前眼部像を撮像す
る撮像手段と、該撮像手段の画像を静止画像として記憶
する記憶手段と、前記静止画像を計測用記号と共に表示
する表示手段と、前記静止画像の所定部位を前記計測用
記号に合致させるために前記静止画像を前記表示手段上
で移動させる操作手段と、前記静止画像の移動量を計測
する計測手段とを有し、前記静止画像を前記計測用記号
に対する移動量を基に前記前眼部像の所定部位の寸法計
測を行うことを特徴とする。In order to achieve the above object, an ophthalmologic apparatus according to the present invention includes an image pickup means for picking up an anterior segment image of an eye to be inspected, and a memory for storing the image of the image pickup means as a still image. Means, display means for displaying the still image together with a measurement symbol, and a predetermined portion of the still image for the measurement.
The still image on the display means to match the symbol
Measure the amount of movement of the still image and the operating means to move with
And a measuring means for displaying the still image as the measurement symbol.
It is characterized in that a dimension measurement of a predetermined portion of the anterior ocular segment image is performed based on the amount of movement with respect to.
【０００６】[0006]
【０００７】[0007]
【作用】上述の構成を有する本発明の眼科装置は、被検
眼を照明し、その反射光を撮像手段により撮像し、前眼
部像を表示手段に表示し、同時に記憶手段に記憶する。
このとき、表示手段上に前眼部像の静止画像と共に計測
用記号を表示し、操作手段により静止画像を計測用記号
に対して移動し、このときの静止画像の移動量を計測手
段により計測し、所定部位の寸法を求める。The ophthalmologic apparatus of the present invention having the above-mentioned structure illuminates the eye to be inspected, images the reflected light thereof by the image pickup means, displays the anterior segment image on the display means, and at the same time stores it in the storage means.
At this time, the measurement symbol is displayed on the display means together with the still image of the anterior segment image, the still image is moved with respect to the measurement symbol by the operation means, and the moving amount of the still image at this time is measured by the measurement means. Then, the size of the predetermined part is obtained.
【０００８】[0008]
【０００９】[0009]
【実施例】本発明を図示の実施例に基づいて詳細に説明
する。図１は第１の実施例の構成を示す平面図、図２は
側面図であり、オートレフラクトメータとオートケラト
メータの複合機である。基台１上には、測定光学系等を
収納する測定部２が載置されており、測定部２はローラ
３により基台１と接触して基台１上を摺動可能とされ、
ポテンショメータ４によってその移動量が検出できるよ
うになっている。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on the illustrated embodiments. FIG. 1 is a plan view showing the configuration of the first embodiment, and FIG. 2 is a side view showing a combined machine of an autorefractometer and an autokeratometer. A measuring unit 2 for accommodating a measuring optical system and the like is placed on the base 1, and the measuring unit 2 is slidable on the base 1 by being brought into contact with the base 1 by a roller 3.
The amount of movement can be detected by the potentiometer 4.
【００１０】測定部２の内部には、被検眼Ｅの前方の光
路O1上に、対物レンズ５、ダイクロイックミラー６、テ
レビカメラ７が順次に配列され、テレビカメラ７の出力
はテレビモニタ８及び画像メモリ９に接続されている。
ダイクロイックミラー６の反射方向には、レフラクトメ
ータとケラトメータの測定系１０が配置されており、ま
た対物レンズ５付近には前眼部を照明するケラトメータ
用の照明光源１１が設けられている。測定部２の検者側
には、測定モードスイッチ１２と操作桿１３が設けら
れ、操作桿１３の先端には測定釦１４が取り付けられて
いる。Inside the measuring section 2, an objective lens 5, a dichroic mirror 6 and a television camera 7 are sequentially arranged on an optical path O1 in front of the eye E to be examined, and the output of the television camera 7 is a television monitor 8 and an image. It is connected to the memory 9.
A measurement system 10 of a refractometer and a keratometer is arranged in the reflection direction of the dichroic mirror 6, and an illumination light source 11 for the keratometer that illuminates the anterior segment is provided near the objective lens 5. A measurement mode switch 12 and an operation rod 13 are provided on the examiner side of the measurement unit 2, and a measurement button 14 is attached to the tip of the operation rod 13.
【００１１】被検眼Ｅの前眼部は照明光源１１により照
明され、その反射光は対物レンズ５、ダイクロイックミ
ラー６を透過してテレビカメラ７で撮像され、テレビモ
ニタ８に図３に示すように前眼部像Ｅ’として表示され
る。検者はこの前眼部像Ｅ’を見ながら操作桿１３を操
作し、ローラ３を介して測定部２を水平方向に移動させ
て被検眼Ｅに対する位置合わせを行う。The anterior segment of the eye E to be examined is illuminated by the illumination light source 11, and the reflected light is transmitted through the objective lens 5 and the dichroic mirror 6 to be imaged by the television camera 7 and displayed on the television monitor 8 as shown in FIG. It is displayed as an anterior segment image E ′. The examiner operates the operating rod 13 while looking at the anterior segment image E ′ to move the measuring unit 2 in the horizontal direction via the roller 3 to align the eye E to be inspected.
【００１２】また、測定系１０からの光束は、ダイクロ
イックミラー６で反射し対物レンズ５を介して被検眼Ｅ
に至り、その反射光は光路を逆に戻り測定系１０で検出
される。The light flux from the measurement system 10 is reflected by the dichroic mirror 6 and passes through the objective lens 5 to the eye E to be examined.
The reflected light returns to the reverse optical path and is detected by the measurement system 10.
【００１３】角膜径を測定する場合には、操作桿１３を
操作して前眼部像Ｅ’をテレビモニタ８の画面の中心付
近に移動し、次に測定部２を前後に移動してピントを合
わせる。ここで測定モードスイッチ１２を押すと、テレ
ビカメラ７の画像が画像メモリ９に取り込まれ、同時に
テレビモニタ８上で画像が固定され、前眼部像Ｅ’は静
止画像として表示される。When measuring the corneal diameter, the operating rod 13 is operated to move the anterior segment image E'to the vicinity of the center of the screen of the television monitor 8, and then the measuring unit 2 is moved back and forth to bring the image into focus. Match. When the measurement mode switch 12 is pressed here, the image of the television camera 7 is taken into the image memory 9, the image is fixed on the television monitor 8 at the same time, and the anterior segment image E ′ is displayed as a still image.
【００１４】このとき、２本のカーソル記号Ｍ、Ｎが角
膜径よりも稍々広い所定寸法の幅で角膜の左右位置に表
示される。この状態から操作桿１３で測定部２を横に移
動すると、この移動量がポテンショメータ４により計測
され、それに応じて記号発生器を制御してカーソル記号
Ｍ、Ｎを動かす。なお、ポテンショメータ４は瞳孔間距
離の計測用であるが、角膜径の計測にも兼用している。At this time, two cursor symbols M and N are displayed at the left and right positions of the cornea with a width of a predetermined dimension that is slightly wider than the cornea diameter. When the measuring portion 2 is moved laterally with the operating rod 13 from this state, this movement amount is measured by the potentiometer 4, and the symbol generator is controlled accordingly to move the cursor symbols M and N. The potentiometer 4 is for measuring the interpupillary distance, but is also used for measuring the corneal diameter.
【００１５】即ち、先ず図３に示すように、操作桿１３
を操作して画面向かって左側のカーソル記号Ｍを虹彩強
膜の左の境界部に合わせて測定釦１４を押す。内蔵のコ
ンピュータにポテンショメータ４で検出された測定部２
の位置が入力される。次に図４に示すように、画面向か
って右側のカーソル記号Ｎを右の境界部に合わせて測定
釦１４を押し、測定部２の位置を入力する。この左右の
位置の差から角膜径を演算により求める。That is, first, as shown in FIG. 3, the operating rod 13
Is operated to align the cursor symbol M on the left side of the screen with the left boundary portion of the iris sclera and press the measurement button 14. Measuring unit 2 detected by potentiometer 4 in the built-in computer
The position of is input. Next, as shown in FIG. 4, the cursor symbol N on the right side of the screen is aligned with the right boundary portion and the measurement button 14 is pressed to input the position of the measurement unit 2. The corneal diameter is calculated from the difference between the left and right positions.
【００１６】なお、このときの測定釦１４はレフラクト
メータとケラトメータの測定系１０による測定の際に使
用するものを角膜径の計測にも兼用している。また、カ
ーソル記号Ｍ、Ｎを移動させずに所定位置に固定し、こ
のカーソル記号Ｍ、Ｎに合わせるようにテレビモニタ８
に表示された前眼部像Ｅ’を、操作桿１３による測定部
２の動きに応じてコンピュータで動かして、この移動量
から角膜径を求めるようにしてもよい。The measuring button 14 used at this time is also used for measuring the corneal diameter, which is used for the measurement by the measuring system 10 of the refractometer and the keratometer. Also, the cursor symbols M and N are fixed at a predetermined position without being moved, and the television monitor 8 is aligned with the cursor symbols M and N.
The anterior ocular segment image E ′ displayed on the screen may be moved by a computer in accordance with the movement of the measuring unit 2 by the operation rod 13, and the corneal diameter may be obtained from this movement amount.
【００１７】図５は第２の実施例を示し、基台２０上に
は三次元的に駆動する電動駆動部２１が設けられ、この
電動駆動部２１に測定部２２が固定されている。測定部
２２の被検眼Ｅの前方の光路O1上に、光学系２３、テレ
ビカメラ２４が配置され、テレビカメラ２４の出力はテ
レビモニタ２５に接続されている。また、操作部２６が
本体装置とは別に設けられ、操作部２６は三次元操作桿
２７と測定釦２８とから構成されており、その出力は測
定部２２内のコンピュータを内蔵する図示しない制御手
段に接続されている。FIG. 5 shows a second embodiment. An electric drive unit 21 for three-dimensionally driving is provided on a base 20, and a measurement unit 22 is fixed to the electric drive unit 21. An optical system 23 and a television camera 24 are arranged on an optical path O1 in front of the eye E to be inspected of the measuring section 22, and an output of the television camera 24 is connected to a television monitor 25. An operation unit 26 is provided separately from the main body device, and the operation unit 26 is composed of a three-dimensional operation rod 27 and a measurement button 28, the output of which is a control means (not shown) in which a computer in the measurement unit 22 is built. It is connected to the.
【００１８】被検眼Ｅは光学系２３によりテレビカメラ
２４に撮像されてテレビモニタ２５に表示される。被検
眼像Ｅ’としては、前眼部像の他に眼底像やスリット投
影像でもよい。計測時に図示しない計測モードスイッチ
を押すと、被検眼像Ｅ’がテレビモニタ２５上で固定さ
れて静止画像となり、同時にカーソル記号Ｍ、Ｎが表示
される。このカーソル記号Ｍ、Ｎを操作桿２７を動かし
て所定位置に移動して計測を行うが、この場合に操作桿
２７を動かしても、第１の実施例のように実際に測定部
２２を動かす必要はない。移動量は操作桿２７の動きに
よって決まるので、これによってカーソル記号Ｍ、Ｎの
移動量が判別し、被検眼像Ｅ’の静止画面上での寸法と
光学系２３の結像倍率とを使用して、被検眼Ｅの所定部
位の寸法を計測することができる。The eye E to be inspected is picked up by the television camera 24 by the optical system 23 and displayed on the television monitor 25. The eye image E ′ to be inspected may be a fundus image or a slit projection image in addition to the anterior segment image. When a measurement mode switch (not shown) is pressed during measurement, the eye image E ′ is fixed on the television monitor 25 and becomes a still image, and cursor symbols M and N are simultaneously displayed. The cursor symbols M and N are moved to a predetermined position by moving the operating rod 27 to perform measurement. In this case, even if the operating rod 27 is moved, the measuring unit 22 is actually moved as in the first embodiment. No need. Since the amount of movement is determined by the movement of the operating rod 27, the amount of movement of the cursor symbols M and N is determined by this, and the size of the eye image E ′ to be inspected on the still screen and the imaging magnification of the optical system 23 are used. Thus, the size of the predetermined portion of the eye E to be inspected can be measured.
【００１９】この第２の実施例は第１の実施例と同様
に、本来機能の測定や撮影のための測定釦２８を前記の
寸法計測時にも兼用しており、本来機能モードに戻した
場合には、テレビカメラ２４の被検眼像Ｅ’を動画とし
てテレビモニタ２５に表示して位置合わせや合焦用に使
用する。この場合に、操作桿２７の動きによって測定部
２２が駆動され、位置合わせを行うことができる。Similar to the first embodiment, this second embodiment also uses the measurement button 28 for measuring the original function and photographing for the above-mentioned dimension measurement, and when returning to the original function mode. For example, the subject's eye image E ′ of the television camera 24 is displayed as a moving image on the television monitor 25 and is used for alignment and focusing. In this case, the measurement unit 22 is driven by the movement of the operation rod 27, and the alignment can be performed.
【００２０】[0020]
【発明の効果】以上説明したように本発明に係る本発明
の眼科装置は、前眼部像の静止画像と共に計測用記号を
表示手段上に表示し、操作手段により静止画像を移動
し、その移動量を計測することにより、前眼部像の所定
部位の寸法を計測することができる。As described above, the ophthalmologic apparatus of the present invention according to the present invention displays the measurement symbol together with the still image of the anterior segment image on the display means, and moves the still image by the operating means. By measuring the amount of movement, it is possible to measure the size of a predetermined portion of the anterior segment image.
【００２１】[0021]
【図１】第１の実施例の平面図である。FIG. 1 is a plan view of a first embodiment.
【図２】側面図である。FIG. 2 is a side view.
【図３】前眼部像の表示画面の説明図である。FIG. 3 is an explanatory diagram of a display screen of an anterior segment image.
【図４】前眼部像の表示画面の説明図である。FIG. 4 is an explanatory diagram of a display screen of an anterior segment image.
【図５】第２の実施例の側面図である。FIG. 5 is a side view of the second embodiment.
１、２０ 基台 ２、２２ 測定部 ４ ポテンショメータ ７、２４ テレビカメラ ８、２５ テレビモニタ ９ 画像メモリ １３、２７ 操作桿 ２１ 電動駆動部 1, 20 base 2.22 Measuring unit 4 potentiometer 7, 24 TV camera 8,25 TV monitor 9 image memory 13, 27 control rod 21 Electric drive
Claims (2)
と、該撮像手段の画像を静止画像として記憶する記憶手
段と、前記静止画像を計測用記号と共に表示する表示手
段と、前記静止画像の所定部位を前記計測用記号に合致
させるために前記静止画像を前記表示手段上で移動させ
る操作手段と、前記静止画像の移動量を計測する計測手
段とを有し、前記静止画像を前記計測用記号に対する移
動量を基に前記前眼部像の所定部位の寸法計測を行うこ
とを特徴とする眼科装置。1. An image pickup unit for picking up an anterior segment image of an eye to be inspected, a storage unit for storing an image of the image pickup unit as a still image, a display unit for displaying the still image together with a measurement symbol, and the stationary unit. Match the specified part of the image with the measurement symbol
To move the still image on the display means
Operating means and a measuring hand for measuring the moving amount of the still image
And a step for transferring the still image to the measurement symbol.
An ophthalmologic apparatus which measures the size of a predetermined part of the anterior ocular segment image based on the amount of motion .
所定間隔で表示するようにした請求項１に記載の眼科装
置。2. The measuring symbol comprises two cursor symbols.
The ophthalmologic apparatus according to claim 1, wherein the ophthalmologic apparatus is configured to display at predetermined intervals .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16901694A JP3437268B2 (en) | 1994-06-28 | 1994-06-28 | Ophthalmic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16901694A JP3437268B2 (en) | 1994-06-28 | 1994-06-28 | Ophthalmic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0810224A JPH0810224A (en) | 1996-01-16 |
| JP3437268B2 true JP3437268B2 (en) | 2003-08-18 |
Family
ID=15878776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16901694A Expired - Fee Related JP3437268B2 (en) | 1994-06-28 | 1994-06-28 | Ophthalmic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3437268B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8254637B2 (en) | 2006-07-27 | 2012-08-28 | Resmed Limited | Mask fitting system and method |
-
1994
- 1994-06-28 JP JP16901694A patent/JP3437268B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0810224A (en) | 1996-01-16 |
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