GB2428813B - Vision test chart and method of its use - Google Patents

Vision test chart and method of its use

Info

Publication number
GB2428813B
GB2428813B GB0619264A GB0619264A GB2428813B GB 2428813 B GB2428813 B GB 2428813B GB 0619264 A GB0619264 A GB 0619264A GB 0619264 A GB0619264 A GB 0619264A GB 2428813 B GB2428813 B GB 2428813B
Authority
GB
United Kingdom
Prior art keywords
test chart
vision test
vision
chart
test
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
Application number
GB0619264A
Other versions
GB2428813A (en
Inventor
Michel Guillon
Marine Emmanuelle Gobbe
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 GBGB0303193.7A external-priority patent/GB0303193D0/en
Application filed by Individual filed Critical Individual
Publication of GB2428813A publication Critical patent/GB2428813A/en
Application granted granted Critical
Publication of GB2428813B publication Critical patent/GB2428813B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • 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
    • A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
GB0619264A 2003-02-12 2004-02-12 Vision test chart and method of its use Expired - Fee Related GB2428813B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0303193.7A GB0303193D0 (en) 2003-02-12 2003-02-12 Methods & lens
GB0403167A GB2398886B (en) 2003-02-12 2004-02-12 Lenses and methods of designing and optimising lenses

Publications (2)

Publication Number Publication Date
GB2428813A GB2428813A (en) 2007-02-07
GB2428813B true GB2428813B (en) 2007-05-16

Family

ID=37663518

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0619264A Expired - Fee Related GB2428813B (en) 2003-02-12 2004-02-12 Vision test chart and method of its use

Country Status (1)

Country Link
GB (1) GB2428813B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002034126A1 (en) * 2000-10-20 2002-05-02 Wavefront Sciences, Inc. Method for computing visual performance from objective ocular aberration measurements

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002034126A1 (en) * 2000-10-20 2002-05-02 Wavefront Sciences, Inc. Method for computing visual performance from objective ocular aberration measurements

Also Published As

Publication number Publication date
GB2428813A (en) 2007-02-07

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Legal Events

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

Effective date: 20200212