CA1053493A - Appareil pour detecter les defauts de sphericite de la cornee ou de l'oeil - Google Patents

Appareil pour detecter les defauts de sphericite de la cornee ou de l'oeil

Info

Publication number: CA1053493A
Authority: CA; Canada
Prior art keywords: light; cornea; reticle; eye; microscope
Prior art date: 1974-07-17
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

Application number

CA298,072A

Other languages

English (en)

Inventor

Joseph A. La Russa

Richard C. Troutman

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.)

SURGICAL MICROSYSTEMS

Original Assignee

SURGICAL MICROSYSTEMS

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.)

1974-07-17

Filing date

1978-03-02

Publication date

1979-05-01

1974-07-17 Priority claimed from US05/489,149 external-priority patent/US4046463A/en

1978-03-02 Application filed by SURGICAL MICROSYSTEMS filed Critical SURGICAL MICROSYSTEMS

1979-05-01 Application granted granted Critical

1979-05-01 Publication of CA1053493A publication Critical patent/CA1053493A/fr

Status Expired legal-status Critical Current

Links

210000004087 cornea Anatomy 0.000 title claims abstract description 48
210000003128 head Anatomy 0.000 claims description 12
238000006073 displacement reaction Methods 0.000 claims description 7
230000003287 optical effect Effects 0.000 description 9
238000005259 measurement Methods 0.000 description 5
238000001356 surgical procedure Methods 0.000 description 5
238000005286 illumination Methods 0.000 description 4
201000009310 astigmatism Diseases 0.000 description 3
239000011521 glass Substances 0.000 description 2
239000007787 solid Substances 0.000 description 2
208000002177 Cataract Diseases 0.000 description 1
230000000295 complement effect Effects 0.000 description 1
230000007547 defect Effects 0.000 description 1
239000011022 opal Substances 0.000 description 1
230000000007 visual effect Effects 0.000 description 1

Landscapes

Eye Examination Apparatus (AREA)

CA298,072A 1974-07-17 1978-03-02 Appareil pour detecter les defauts de sphericite de la cornee ou de l'oeil Expired CA1053493A (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
US05/489,149 US4046463A (en)	1974-07-17	1974-07-17	Indicating an asphericity of the cornea of an eye
CA231,601A CA1032385A (fr)	1974-07-17	1975-07-16	Appareil pour detecter les defauts de sphericite de la cornee

Publications (1)

Publication Number	Publication Date
CA1053493A true CA1053493A (fr)	1979-05-01

Family

ID=25668028

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA298,072A Expired CA1053493A (fr)	1974-07-17	1978-03-02	Appareil pour detecter les defauts de sphericite de la cornee ou de l'oeil

Country Status (1)

Country	Link
CA (1)	CA1053493A (fr)

1978
- 1978-03-02 CA CA298,072A patent/CA1053493A/fr not_active Expired

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