FR473719A - Device for measuring refractive anomalies of the eyes - Google Patents
Device for measuring refractive anomalies of the eyesInfo
- Publication number
- FR473719A FR473719A FR473719DA FR473719A FR 473719 A FR473719 A FR 473719A FR 473719D A FR473719D A FR 473719DA FR 473719 A FR473719 A FR 473719A
- Authority
- FR
- France
- Prior art keywords
- eyes
- measuring refractive
- refractive anomalies
- anomalies
- measuring
- 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
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
- A61B3/0285—Phoropters
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biophysics (AREA)
- Ophthalmology & Optometry (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR473719T | 1914-06-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR473719A true FR473719A (en) | 1915-01-22 |
Family
ID=1511753
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR473719D Expired FR473719A (en) | 1914-06-18 | 1914-06-18 | Device for measuring refractive anomalies of the eyes |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR473719A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949810A (en) * | 1957-06-26 | 1960-08-23 | American Optical Corp | Eye testing instruments |
-
1914
- 1914-06-18 FR FR473719D patent/FR473719A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2949810A (en) * | 1957-06-26 | 1960-08-23 | American Optical Corp | Eye testing instruments |
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