GB2059623B - Instrument for the subjective determination of the refraction of an eye - Google Patents

Instrument for the subjective determination of the refraction of an eye

Info

Publication number
GB2059623B
GB2059623B GB8029859A GB8029859A GB2059623B GB 2059623 B GB2059623 B GB 2059623B GB 8029859 A GB8029859 A GB 8029859A GB 8029859 A GB8029859 A GB 8029859A GB 2059623 B GB2059623 B GB 2059623B
Authority
GB
United Kingdom
Prior art keywords
refraction
eye
instrument
subjective determination
subjective
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
Application number
GB8029859A
Other versions
GB2059623A (en
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE19792940519 external-priority patent/DE2940519C2/en
Priority claimed from DE19803009164 external-priority patent/DE3009164A1/en
Application filed by Individual filed Critical Individual
Publication of GB2059623A publication Critical patent/GB2059623A/en
Application granted granted Critical
Publication of GB2059623B publication Critical patent/GB2059623B/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/02—Subjective types, i.e. testing apparatus requiring the active assistance of the patient
    • A61B3/028—Subjective types, i.e. testing apparatus requiring the active assistance of the patient for testing visual acuity; for determination of refraction, e.g. phoropters

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Medical Informatics (AREA)
  • Biophysics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Eye Examination Apparatus (AREA)
GB8029859A 1979-10-05 1980-09-16 Instrument for the subjective determination of the refraction of an eye Expired GB2059623B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19792940519 DE2940519C2 (en) 1979-10-05 1979-10-05 Device for subjective refraction determination
DE19803009164 DE3009164A1 (en) 1980-03-10 1980-03-10 Optical aberration subjective measurement appts. - uses movable prisms to measure focal length of patient's eye

Publications (2)

Publication Number Publication Date
GB2059623A GB2059623A (en) 1981-04-23
GB2059623B true GB2059623B (en) 1983-09-14

Family

ID=25781385

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8029859A Expired GB2059623B (en) 1979-10-05 1980-09-16 Instrument for the subjective determination of the refraction of an eye

Country Status (6)

Country Link
CH (1) CH646322A5 (en)
DD (1) DD153323A5 (en)
FR (1) FR2466232B1 (en)
GB (1) GB2059623B (en)
IT (1) IT1147758B (en)
NL (1) NL8005524A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2152693A (en) * 1983-12-16 1985-08-07 Transport The Secretary Of Sta Optometer with astigmatism measurement
GB2152692A (en) * 1983-12-16 1985-08-07 Transport The Secretary Of Sta Optometer having ring test image superimposable on an external view
DD253763A1 (en) * 1986-12-01 1988-02-03 Zeiss Jena Veb Carl ARRANGEMENT FOR DETERMINING THE SPRAY REFLECTION CONDITION OF THE EYE
US6350032B1 (en) 2000-02-09 2002-02-26 Titmus Optical, Inc. Vision testing apparatus
CN1172626C (en) * 2000-08-22 2004-10-27 贺际明 Subjective method and device for measuring astigmation of human eyes
WO2002062209A1 (en) * 2001-02-07 2002-08-15 Titmus Optical, Inc. Vision testing apparatus

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1510114A (en) * 1921-08-08 1924-09-30 Thorner Walther Apparatus for the objective determination of the refraction of the eye
FR1040696A (en) * 1951-04-14 1953-10-16 Method and apparatus for determining ametropia of the eye
GB830141A (en) * 1956-02-03 1960-03-09 Harry Maurice Felix Asher Improvements in instruments for testing vision
CH461132A (en) * 1966-10-07 1968-08-15 Rodenstock Optik G Device for measuring astigmatism
DE1797071A1 (en) * 1968-08-09 1971-07-01 Zeiss Carl Fa Device for eyeglass determination
DE2815120A1 (en) * 1978-04-07 1979-10-11 Schwind Gmbh & Co Kg Herbert METHOD AND DEVICE FOR EYE REFRACTION DETERMINATION
DE2817377C3 (en) * 1978-04-20 1980-11-13 Optische Werke G. Rodenstock, 8000 Muenchen Device for automatic objective eye refraction

Also Published As

Publication number Publication date
CH646322A5 (en) 1984-11-30
NL8005524A (en) 1981-04-07
GB2059623A (en) 1981-04-23
FR2466232A1 (en) 1981-04-10
IT8067995A0 (en) 1980-06-26
IT1147758B (en) 1986-11-26
FR2466232B1 (en) 1985-10-25
DD153323A5 (en) 1982-01-06

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee