JPH02237560A - Cornea operation apparatus equipped with cornea collimation device - Google Patents
Cornea operation apparatus equipped with cornea collimation deviceInfo
- Publication number
- JPH02237560A JPH02237560A JP1058112A JP5811289A JPH02237560A JP H02237560 A JPH02237560 A JP H02237560A JP 1058112 A JP1058112 A JP 1058112A JP 5811289 A JP5811289 A JP 5811289A JP H02237560 A JPH02237560 A JP H02237560A
- Authority
- JP
- Japan
- Prior art keywords
- incision
- cornea
- ring
- laser beam
- lens system
- 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
Links
- 210000004087 cornea Anatomy 0.000 title claims abstract description 36
- 230000003287 optical effect Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 description 5
- MURGITYSBWUQTI-UHFFFAOYSA-N fluorescin Chemical compound OC(=O)C1=CC=CC=C1C1C2=CC=C(O)C=C2OC2=CC(O)=CC=C21 MURGITYSBWUQTI-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 201000009310 astigmatism Diseases 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- ISQINHMJILFLAQ-UHFFFAOYSA-N argon hydrofluoride Chemical compound F.[Ar] ISQINHMJILFLAQ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- -1 erbium yttrium aluminum Chemical compound 0.000 description 1
- 238000000695 excitation spectrum Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 1
- 230000035876 healing Effects 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F9/00—Methods or devices for treatment of the eyes; Devices for putting-in contact lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00872—Cornea
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Laser Surgery Devices (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、患者の被検眼の角膜摘出を行うための角膜切
開、強度の乱視を有する患者の被検眼の角ｇｕａ正を行
なうための角膜切込みに用いられる角膜照準装置付角膜
手術装置に関する。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to a corneal incision for performing corneal extraction on the eye of a patient to be examined, and a corneal incision for performing corneal correction on the eye of a patient with severe astigmatism. The present invention relates to a corneal surgical device with a corneal aiming device used for incision.
（従来の技術）
従来から、視認しにくい切開用レーザービーム光を出ロ
１する切開用レーザービーム光源と、該切開用レーザー
ビーム光源から出射された切開用レーザービーム光を拡
大する拡大レンズ系と、該拡大レンズ系により拡大され
た切開用レーザービーム光を被検眼の角膜に切開用リン
グ光として収束さゼてぞの角膜上にＬＪＩ開用輪環を形
成するアキシコンレンズ系とをイｊすると共に、そのア
キシコンレンズ系と同軸に設けられて視認しやすい観察
用レーザービーム光を投影して角膜上に切開用輪環に合
致する観察用輪環を形成する！３ｌ察用投影系をイ１し
、その視認しやすい観察用輪環を観察することにより、
切開用輪環の大きさと角膜に対するその相対位責とをｉ
ｉｖ認できるようにした角膜照準装置付角膜手術装置が
知られている。(Prior Art) Conventionally, an incision laser beam source that emits an incision laser beam that is difficult to see, and an enlarging lens system that magnifies the incision laser beam emitted from the incision laser beam source. , an axicon lens system that converges the incision laser beam expanded by the magnifying lens system onto the cornea of the eye to be examined as an incision ring light to form an LJI open ring on the cornea. At the same time, a laser beam for observation that is provided coaxially with the axicon lens system and is easy to see is projected to form an annulus for observation that matches the annulus for incision on the cornea! By using a 3L observation projection system and observing its easily visible observation ring,
The size of the incising annulus and its relative position to the cornea are i
A corneal surgical device with a corneal aiming device that can be used for IV recognition is known.
（発明が解決しようとする課題）
しかしながら、従来の角膜照準装置付角膜手術装百は、
観察用レーザービーム光と切開用レーザービーム光とで
その波長が異なっており、アキシコンレンズを通してそ
の観察用レーザービーム光と切開用レーザービーム光と
を角膜上に収束させる際、そのアキシコンレンズ系の収
差によって観察用レーザービーム光と切開用レーザービ
ーム光との合焦位置がずれるため、観察用投影系に収差
補正用のレンズ系を設けてその合焦ずれを補正しなけれ
ばならないという間趙点があった。(Problems to be Solved by the Invention) However, the conventional corneal surgical device equipped with a corneal aiming device
The observation laser beam light and the incision laser beam light have different wavelengths, and when the observation laser beam light and the incision laser beam light are focused on the cornea through an axicon lens, the axicon lens system Since the focal position of the observation laser beam light and the incision laser beam light shift due to aberrations in There was a point.
また、！ｉＪｌ察用投影系から出０，１される観察用レ
ーザービーム光の波長に対して切開用レーザービーム光
の波長が短い場合、Ｉｆｌ１察用レーザービーム光のｊ
１１点．深度が切開用レーザービーム光の焦点深度より
も深くなり、角膜上に正確に切開用輸環を合と
焦させ難いいう問題点もある。Also,! If the wavelength of the incision laser beam light is shorter than the wavelength of the observation laser beam light emitted from the iJl observation projection system, the j of the Ifl1 observation laser beam light is
11 points. There is also the problem that the depth is deeper than the focal depth of the laser beam for incision, making it difficult to accurately focus the incision ring on the cornea.
そこで、本発明の目的は、角膜に対しての切開用輸環の
相対位置と角膜に対する合焦とをより一層正確に定める
ことのできる角膜照準装置付角膜手術装置を提供するこ
とにある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a corneal surgical device with a corneal aiming device that can more accurately determine the relative position of an incision ring with respect to the cornea and the focus on the cornea.
（課題を解決しようとする手段）
本発明に係わる角膜照準装置付角膜手術装置は、上記の
課題を解決するため、観察用投影系をアキシコンレンズ
系と同軸に設ける代わりに、切開用リング光によって角
膜に形成される切開用輸環の大きさと角膜に対するその
相対位置とを確認できるように切開用輪環に一致させて
複数個の視認しやすい観察用ピンホールを投影する観察
用ピンホール投影系をアキシコンレンズ系と別個に設け
たところにある。(Means for Solving the Problems) In order to solve the above-mentioned problems, the corneal surgical device with a corneal aiming device according to the present invention uses a ring light for incision instead of providing the observation projection system coaxially with the axicon lens system. Observation pinhole projection that projects a plurality of easily visible observation pinholes aligned with the incision ring so that the size of the incision ring formed on the cornea and its relative position with respect to the cornea can be confirmed. The system is provided separately from the axicon lens system.
（作用）
本発明に係わる角膜照準装置付角膜手術装置によれば、
切開用レーザービーム光源から視認しにくい切開用レー
ザービーム光が出射され、この切開用レーザービーム光
が拡大レンズ系により拡大され、アキシコンレンズ系に
より切開用リング光として角膜に収束照射され、角膜上
に切開用輸環が合魚形成される。同時に、観察用ピンホ
ール投影系により切開用輪環に合致する複数個の観察用
ピンホールが切開用輪環の大きさと角膜に対するその相
対位置とをＶｆｌ Ｅｉ，できるように角膜上に投影さ
れる。(Function) According to the corneal surgical device with a corneal aiming device according to the present invention,
An incision laser beam light that is difficult to see is emitted from an incision laser beam light source, this incision laser beam light is expanded by a magnifying lens system, and convergently irradiated onto the cornea as an incision ring light by an axicon lens system. The incisive ring is formed in a converging manner. At the same time, a plurality of observation pinholes matching the incisional annulus are projected onto the cornea by the observation pinhole projection system so as to determine the size of the incisional annulus and its relative position to the cornea. .
（実施例）
以下に、本発明に係わる角膜照準装ｉ！！１寸角膜手丙
装霞の実施例を図面を参照しつつ説明する。(Example) The corneal aiming device i! according to the present invention will be described below. ! An example of a 1-inch corneal hand brace will be described with reference to the drawings.
第１図において、１０は視認しにくい切開用レーザービ
ーム光Ｐ，を出射するレーザービーム光源、ｌ１はこの
レーザービーム光ｆｉｌｏから出射された切開用レーザ
ービーム光Ｐ＋を拡大する拡大レンズ系、ｌ２は拡大レ
ンズ系１１により拡大された切開用レーザービーム光Ｐ
１を被検眼１３の角膜１４に切開用リング光Ｐ２として
収束させるためのアキシコンレンズ系、１５はダイクロ
イックミラ− １６、１７は観察用ピンホール投影系で
ある。In FIG. 1, 10 is a laser beam source that emits an incision laser beam P, which is difficult to visually recognize, l1 is a magnifying lens system that magnifies the incision laser beam P+ emitted from this laser beam filo, and l2 is a Laser beam light P for incision expanded by the magnifying lens system 11
1 is an axicon lens system for converging the light beam P2 on the cornea 14 of the eye 13 to be examined, 15 is a dichroic mirror, and 16 and 17 are observation pinhole projection systems.
レーザー光源ｌＯには、たとえば、アルゴンフッ化１勿
（ＡｒＦ）、クリフ゛トンフッカ物（ＫｒＦ）等のエキ
シマ（ Ｅ ｘｃｉａｅｒ）レーザー装置、水素フッカ
物（ＨＦ）、エルビウムーイットリウムアルミニウムガ
ーネットレーザー（ Ｅ ｒ ／ Ｙ Ａ Ｇ ）等の
中赤外（Ｍｉｄ Ｉｎｆｒａｒｅｄ）レーザ装置、極短
パルスレーザー装置等を用いる。The laser light source IO includes, for example, an excimer (Exciaer) laser device such as argon fluoride (ArF), Clifton fluoride (KrF), hydrogen fluoride (HF), erbium yttrium aluminum garnet laser (Er/YA), etc. A mid-infrared (Mid Infrared) laser device such as G), an extremely short pulse laser device, etc. are used.
拡大レンズ系１１（ビームエキスパンダー）は、凹レン
ズ１８と凸レンズ１９とから大略構成され、アキシコン
レンズ系１２は合焦レンズ２０とアキシコンレンズ２ｌ
とから大略構成され、鏡筒２２内に設けられている。鏡
筒２２は光軸ｏ１方向に前徨動可能とされ、アキシコン
レンズ２１は鏡筒２２内で光軸方向（矢印Ａ−Ａ方向）
に往復動可能で、アキシコンレンズ２ｌと鏡筒２２とは
コントローラ２３により制御される。The magnifying lens system 11 (beam expander) is roughly composed of a concave lens 18 and a convex lens 19, and the axicon lens system 12 includes a focusing lens 20 and an axicon lens 2l.
It generally consists of the following, and is provided within the lens barrel 22. The lens barrel 22 is movable forward in the optical axis o1 direction, and the axicon lens 21 is moved in the optical axis direction (arrow A-A direction) within the lens barrel 22.
The axicon lens 2l and lens barrel 22 are controlled by a controller 23.
鏡筒２２を矢印Ａ−Ａ方向に可動させると、角膜ｌ４に
対するリング光Ｐ２の合焦位置が、矢印Ａ′八′方向に
変更され、アキシコンレンズ２１を矢印Ｂ−Ｂ方向に往
１ｙ動させると、切開用リング光Ｐ２によって角膜１４
に形成される切開用輪環Ｐ３（第２図参照）の大きさが
変更され、ここでは、アキシコンレンズ２１を光軸方向
に往復動させることによって、切開用輪環Ｐ３の大きさ
が直径６１〜９ｌｌの範囲内で調整される。なお、第１
図において、符号Ｐは切開用輪環Ｐ３の合焦平面を示す
。When the lens barrel 22 is moved in the direction of the arrow A-A, the focal position of the ring light P2 on the cornea l4 is changed in the direction of the arrow A'8', and the axicon lens 21 is moved in the direction of the arrow B-B. When the cornea 14 is
By reciprocating the axicon lens 21 in the optical axis direction, the size of the incisional ring P3 (see Fig. 2) formed in the diameter is changed. It is adjusted within the range of 61 to 9 liters. In addition, the first
In the figure, the symbol P indicates the focusing plane of the incision ring P3.
Ｒ察用ピンホール投影系１６、１７は鏡筒２４、２４、
観察光ｆＪ２５、２５、集光レンズ２６、２６、ピンホ
ール形成用の絞り部材２７、２７、投影レンズ２８、２
８から大略構成されている。この観察用ピンホール投影
系Ｊ６、１７は切開用輸環Ｐ３の大きさと角１１１４に
対する切開用軸環Ｐ３の相対位置とを確認するため、切
開用輪環Ｐ３の円周上に合致させて視認しやすい観察用
ピンホールＰ４が形成されるように可視光領域の観察光
Ｐ５を投影するもので、アキシコンレンズ２１の光軸方
向く矢印Ｂ−Ｂ方向》への移動に追従して矢印Ｃ−Ｃ方
向に移動するようにコントローラ２３によってコントロ
ールされると共に、鏡筒２２の光軸方向への移動に伴う
合焦位置の変化に追従するように矢印Ｄ−Ｄ方向にコン
トローラ２３によってコントロールされる。ここでは、
そのＩ１察用ピンホールＰ４は一対とされ、観察用ピン
ホールＰ４は角膜ｌ４の中央を境に互いに１８０°対称
位置に設けられているが、３（ｌｌ以上の切開用輸環Ｐ
３の円周上に等角度毎に観察用ピンホールを形成するよ
うにしてもよい。The R detection pinhole projection systems 16 and 17 are lens barrels 24 and 24,
Observation light fJ25, 25, condenser lenses 26, 26, aperture members 27, 27 for forming pinholes, projection lenses 28, 2
It is roughly composed of 8. The observation pinhole projection systems J6 and 17 are aligned on the circumference of the incision ring P3 for visual confirmation in order to confirm the size of the incision ring P3 and the relative position of the incision shaft ring P3 with respect to the corner 1114. The observation light P5 in the visible light range is projected so that an observation pinhole P4 that is easy to see is formed. - Controlled by the controller 23 to move in the C direction, and controlled by the controller 23 in the arrow D-D direction to follow changes in the focusing position as the lens barrel 22 moves in the optical axis direction. . here,
The I1 observation pinholes P4 are a pair, and the observation pinholes P4 are provided at positions 180° symmetrical to each other with the center of the cornea l4 as a border.
Observation pinholes may be formed at equal angles on the circumference of No. 3.
ダイクロイックミラ−１５は切開用リング光Ｐ２を全反
射可能でかつ角Ｉ！Ａ１４により反躬された［察光Ｐ５
を透過可能に構成されている。ダイクロイックミラーｌ
５の透過光軸上には、ダイクロイックミラ−１５を境に
被検眼１３と反対側に手術用顕微鏡２９が設けられ、手
術用Ｂｌｌ微鏡２９を用いてその観察用ピンホールＰ４
をｉｌ！察することにより、角膜１４に形成される切開
用輸環Ｐ３の大きさと、角＠１４に対するその相対位置
とをｊ’ｔＩ 認することができる。The dichroic mirror 15 can totally reflect the incision ring light P2 and has an angle I! It was refuted by A14 [Detection P5
is configured to be transparent. dichroic mirror l
5, a surgical microscope 29 is provided on the opposite side of the subject's eye 13 with the dichroic mirror 15 as a boundary, and the observation pinhole P4 is set using the surgical Bll microscope 29.
il! By observing, the size of the incision ring P3 formed in the cornea 14 and its relative position with respect to the cornea can be recognized.
なお、アキシコンレンズ２１とダイクロイツクミラー１
５との間に、第３図に示すような扇形遮光羽根３０、３
０を有する遮光板３１を設け、リング光Ｐ２の一部をカ
ットするようにすれば、角膜１４に第４図に示すような
対称形の扇形輸環３２、３２を形成することができ、こ
の遮光板３１を用いて角［４１４に切込みを入れ、その
治癒通程における角［Ｉ１４の盛り上がりにより角膜の
乱視を矯正的に治療するようにすることもできる。In addition, the axicon lens 21 and the dichroic mirror 1
5, there are fan-shaped light-shielding blades 30, 3 as shown in FIG.
By providing a light shielding plate 31 having an angle of 0 and cutting a part of the ring light P2, symmetrical fan-shaped rings 32, 32 as shown in FIG. 4 can be formed on the cornea 14. It is also possible to make an incision in the corner [414] using the light-shielding plate 31, and to correctively treat corneal astigmatism by swelling the corner [I14] during the healing process.
以上、実施例では可視光波長域の観察光Ｐｓを角［１１
４に投影することにしたが、角膜表面にフルオレシン（
ｆｌｕｏｒｅｓｃｅｉｎ ）のような蛍光剤を点眼し
、その励起スペクトルを含むａ察光を用いることにすれ
ば、よりいっそうｎ！！用ピンホールの視認が容易とな
る。As described above, in the embodiment, the observation light Ps in the visible wavelength range is set to the angle [11
4, but I decided to use fluorescin (fluorescin) on the corneal surface.
If you instill a fluorescent agent such as fluorescein into your eyes and use a-detection that includes its excitation spectrum, the n! ! pinholes can be easily seen.
（発明の効果）
本発明に係わる角膜照準装置付角膜手術装置は、以上説
明したように構成したので、以下の効果を奏する。(Effects of the Invention) Since the corneal surgical device with a corneal aiming device according to the present invention is configured as described above, it has the following effects.
■収差補正用の補正光学系が不要である。■No need for a correction optical system for aberration correction.
■角膜に対しての切開用輸環の相対位置と角膜に対する
合焦とをより一層正確に定めることができる。すなわち
、観察用ピンホール投影系の投影レンズの開口数を大き
く設定することにより、切開用レーザービーム光の波長
が観察用ピンホールを形成するためのｗＡ察光の波長よ
り短い場合でも、観察用ピンホールの焦点深度を切開用
輪環の焦点深度よりも浅くでき、切開用輸環の合焦をよ
り正確に行うことができる。(2) The relative position of the incision ring with respect to the cornea and the focus on the cornea can be determined more accurately. In other words, by setting a large numerical aperture of the projection lens of the observation pinhole projection system, even if the wavelength of the laser beam for incision is shorter than the wavelength of wA light detection for forming the observation pinhole, the observation The focal depth of the pinhole can be made shallower than the focal depth of the incision ring, and the incision ring can be focused more accurately.
第１図は本発明に係わる角膜照準装置付角膜手術装置の
光学系を示す図、
第２図は第１図に示す角膜に形成されたＩＮ察用ピンホ
ールの説明図、
第３図は第１図に示す遮光板の平面図、第４図はその第
３図に示す遮光板により角膜に形成される扇形輸環の説
明図、
である。
１０・・・レーザービーム光源
１１・・・拡大レンズ系、１２・・・アキシコンレンズ
系ｌ３・・・被検眼、１４・・・角膜
１６、１７・・・観察用ピンホール投影系２３・・・コ
ントローラ
Ｐ２・・・リング光
Ｐ ３・・・切開用輪環
ｐ４・・・観察用ピンホールFIG. 1 is a diagram showing the optical system of the corneal surgical device with a corneal aiming device according to the present invention, FIG. 2 is an explanatory diagram of the IN detection pinhole formed in the cornea shown in FIG. 1, and FIG. 1 is a plan view of the light shielding plate shown in FIG. 1, and FIG. 4 is an explanatory diagram of a fan-shaped ring formed on the cornea by the light shielding plate shown in FIG. 3. DESCRIPTION OF SYMBOLS 10...Laser beam light source 11...Magnifying lens system, 12...Axicon lens system l3...Eye to be examined, 14...Cornea 16, 17...Pinhole projection system for observation 23...・Controller P2...Ring light P3...Ring ring for incision p4...Pinhole for observation
Claims (2)
る切開用レーザービーム光源と、 該切開用レーザービーム光源から出射された切開用レー
ザービーム光を拡大する拡大レンズ系と、該拡大レンズ
系により拡大された切開用レーザービーム光を被検眼の
角膜に切開用リング光として収束させるためのアキシコ
ンレンズ系と、前記アキシコンレンズ系とは別個に設け
られ、前記切開用リング光により前記角膜に形成される
切開用輪環の大きさと前記角膜に対するその相対位置と
を確認できるように該切開用輸環に一致させて複数個の
視認しやすい観察用ピンホールを投影する観察用ピンホ
ール投影系と、 を有することを特徴とする角膜照準装置付角膜手術装置
。(1) An incision laser beam light source that emits an incision laser beam light that is difficult to see; a magnifying lens system that magnifies the incision laser beam light emitted from the incision laser beam light source; and an enlarging lens system that magnifies the incision laser beam light emitted from the incision laser beam light source. An axicon lens system is provided separately from the axicon lens system for converging the incision laser beam light onto the cornea of the eye to be examined as an incision ring light, and the axicon lens system is provided separately from the axicon lens system to converge the incision laser beam light on the cornea of the subject's eye as an incision ring light. an observation pinhole projection system that projects a plurality of easily visible observation pinholes in alignment with the incision ring so as to confirm the size of the incision ring and its relative position with respect to the cornea; A corneal surgical device with a corneal aiming device, characterized in that it has the following.
きさが変更できるようにその光軸方向に可動可能とされ
、前記観察用ピンホール投影系は、前記アキシコンレン
ズの光軸方向への可動に伴う前記切開用輪環の大きさの
変化に追従して前記観察用ピンホールが移動するように
コントロールされることを特徴とする請求項１に記載の
角膜照準装置付角膜手術装置。(2) The axicon lens system is movable in the direction of its optical axis so that the size of the incision ring can be changed, and the observation pinhole projection system is movable in the direction of the optical axis of the axicon lens. 2. The corneal surgical device with a corneal aiming device according to claim 1, wherein the observation pinhole is controlled to move in accordance with a change in size of the incision ring caused by movement of the corneal surgical device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1058112A JP2928256B2 (en) | 1989-03-10 | 1989-03-10 | Surgery device with aiming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1058112A JP2928256B2 (en) | 1989-03-10 | 1989-03-10 | Surgery device with aiming device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02237560A true JPH02237560A (en) | 1990-09-20 |
| JP2928256B2 JP2928256B2 (en) | 1999-08-03 |
Family
ID=13074896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1058112A Expired - Lifetime JP2928256B2 (en) | 1989-03-10 | 1989-03-10 | Surgery device with aiming device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2928256B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012177560A (en) * | 2011-02-25 | 2012-09-13 | Chino Corp | Radiation thermometer |
| JP2016013255A (en) * | 2014-07-01 | 2016-01-28 | 株式会社ニデック | Laser treatment device |
| JP2021131427A (en) * | 2020-02-18 | 2021-09-09 | オリンパス株式会社 | Dark-field capacitor |
-
1989
- 1989-03-10 JP JP1058112A patent/JP2928256B2/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012177560A (en) * | 2011-02-25 | 2012-09-13 | Chino Corp | Radiation thermometer |
| JP2016013255A (en) * | 2014-07-01 | 2016-01-28 | 株式会社ニデック | Laser treatment device |
| JP2021131427A (en) * | 2020-02-18 | 2021-09-09 | オリンパス株式会社 | Dark-field capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2928256B2 (en) | 1999-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0402250B1 (en) | Noncontact laser microsurgical apparatus | |
| JP2582857B2 (en) | Ophthalmic laser surgery device | |
| US7238176B2 (en) | Method for intrastromal photodisruption of dome-shaped surfaces | |
| JP2585830Y2 (en) | Light therapy equipment | |
| KR101645603B1 (en) | Low wavefront error devices, systems, and methods for treating an eye | |
| US10213339B2 (en) | Method and device for producing curved cuts in a transparent material | |
| JP2003527878A (en) | Method and system for scanning non-overlapping patterns of laser energy using diffractive optics | |
| CN1211055C (en) | Dual mode ophthalmic laser ablation | |
| JP3856691B2 (en) | Observation device | |
| JP2007159740A (en) | Laser treatment apparatus for ophthalmology | |
| US12048650B2 (en) | System and method of determining incision depths in eyes | |
| US20240335323A1 (en) | Corneal lenticular incisions with transition zones in laser-assisted ophthalmic procedures | |
| WO1987005794A1 (en) | Laser surgery system | |
| JPH02237560A (en) | Cornea operation apparatus equipped with cornea collimation device | |
| WO2000021475A1 (en) | Laser system with projected reference pattern | |
| WO2002088823A1 (en) | Optical beam delivery configuration | |
| JP2828212B2 (en) | Ophthalmic laser treatment device | |
| JP2002125996A (en) | Cornea surgical equipment | |
| JP2761640B2 (en) | Ophthalmic laser surgery device | |
| US20210177651A1 (en) | System and method of corneal cross-linking | |
| JPH11235315A (en) | Laser ophthalmoscope | |
| CN118356297A (en) | Multi-wavelength medical laser system | |
| JP2518424Y2 (en) | Ophthalmic laser treatment device | |
| JPH04164444A (en) | Laser device for ophthalmological use | |
| JPH08500500A (en) | Astigmatic laser ablation of surfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20090514 Year of fee payment: 10 |
|
| EXPY | Cancellation because of completion of term |