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Saturday, May 16, 2020 | History

2 edition of Test-types for the determination of the acuteness of vision found in the catalog.

Test-types for the determination of the acuteness of vision

H. Snellen

Test-types for the determination of the acuteness of vision

by H. Snellen

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Published by Williams and Norgate in London .
Written in English

    Subjects:
  • Vision -- Testing.

  • Edition Notes

    Statementby H. Snellen.
    Classifications
    LC ClassificationsRE929 .S6413x 1868
    The Physical Object
    Pagination6 p., [22] leaves of plates :
    Number of Pages22
    ID Numbers
    Open LibraryOL2668281M
    LC Control Number85664490

    using a book of color vision plates or pages, this test screens for acquired and/or hereditary color visual defects. Corneal topography using a computerized and digital instrument: maps the curvature of the cornea and is useful in diagnosing corneal diseases such as keratoconus and astigmatism. But this determination to one object does not proceed from the vision of the believer, but from the vision of Him who is believed. Thus as far as faith falls short of vision, it falls short of the knowledge which belongs to science, for science determines the intellect to one object by the vision and understanding of first principles.

    Vision science, with the ultimate goal of providing a mechanistic account for how we see, has placed a great emphasis on measuring and explaining sensitivity for a wide range of target objects in a wide range of conditions. Fechner’s book, Elemente der Psychophysik, was the beginning of the modern by: Crowding, today, can be appreciated as a key fact about how people visually recognize objects. Object recognition has been studied intensely for a long time as a computational problem to which human visual perception provides a solution [4, 5].However, from its discovery until recently, crowding has been studied entirely outside of the research effort explicitly directed at object by:

    A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text.   In he published his work Test-types for the determination of the acuteness of vision, in which he described in detail his concept: “Over .


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Test-types for the determination of the acuteness of vision by H. Snellen Download PDF EPUB FB2

Get this from a library. Test-types for the determination of the acuteness of vision. [H Snellen]. Test-types for the determination of the acuteness of vision DSpace/Manakin Repository.

Test-types for the determination of the acuteness of visionCited by: With: Test-types for the determination of the acuteness of vision / by H.

Snellen. 4th ed. London: Williams and Norgate, Bound together subsequent to publication. Microfilm. 1 microfilm reel: negative ; 35 mm. NLM ID: [Book]. The sizes of the type are designated in meters and feet representing the distances at which a person with normal vision is able to read the print.

The sizes range from m to 12 m. The first page is headed 'Test types for the determining the acuteness of vision' underneath which is a statement that the test was 'drawn up by GEORGE COWELL FRCS'.Author: George cowell frcs.

Title(s): Test-types for the determination of the acuteness of vision. Edition: 2d ed. Country of Publication: Netherlands Publisher: Utrecht: Van de Weijer, Description: 8 p.: ill.

Language: English Notes: Translation of Probebuchstaben zur Bestimmung der Sehschärfe. NLM ID: [Book]. Download PDF: Sorry, we are unable to provide the full text but you may find it at the following location(s): (external link)Author: Herman Snellen.

Author(s): Snellen,H(Herman), Title(s): Test-types for the determination of the acuteness of vision. Edition: 4th ed. Country of Publication: England. Title(s): Test-types for the determination of the acuteness of vision, myopia, range of accommodation, etc., corresponding to the Schrift-Scalen of Eduard Jaeger.

Country of Publication: United States Publisher: New York: W. Wood & Co., Near visual acuity (VA) test charts and a set of reading cards using simplified Chinese characters were designed based on the logMAR principle. Three experiments were conducted on native Mandarin‐speaking subjects with normal by: 3.

The measurement of the acuteness or sharpness of vision is: color vision test-ultrasonography-tonometry-visual acuity. Visual acuity. Surgical destruction of the crystalline lens is called: phacolysis-phacosclerosis-presbyopia-orthoptics.

Phacolysis. In the term phacoemulsification, the combining form phac/o means: pupil-iris. See also, Test types for the determination of the acuteness of vision (2nd ed. in English) Utrecht, Van der Weijer, Ogle KN. On the problem of an international nomenclature for designating. In he published his work Test-types for the determination of the acuteness of vision, in which he described in detail his concept: “Over each series of letters of the same size a number was placed indicating the distance (in feet or metres) at which the letters subtended an angle of five minutes.

Fechner’s book, in press as: Pelli, D. G., & Bex, P. Measuring contrast sensitivity. Vision Research ) Test types for the determination of the acuteness of vision.

Start studying Medical Terminology - Eye. Learn vocabulary, terms, and more with flashcards, games, and other study tools. We use cookies to offer you a better experience, personalize content, tailor advertising, provide social media features, and better understand the use of our services.

Part of the Lecture Notes in Computer Science book series (LNCS, Test-types for the Determination of the Acuteness of Vision. Williams R., Scholtz J., Blaha L.M., Franklin L., Huang Z.

() Evaluation of Visualization Heuristics. In: Kurosu M. (eds) Human-Computer Interaction. Theories, Methods, and Human Issues. HCI Lecture Author: Ryan Williams, Jean Scholtz, Leslie M. Blaha, Lyndsey Franklin, Zhuanyi Huang.

Special ophthalmologic services include such procedures as determination of the refractive state (), ophthalmologic examinations under general anesthesia (, ), gonioscopy (), sensorimotor examinations (), orthoptic and/or pleoptic training (vision therapy) (), contact lens fitting for ocular disease ( Notes on the clinical determination of the acuteness of vision, including the construction and gradation of optotypes, and on systems of notation.

This article has been cited by other articles in Cited by: Green J Notes on the clinical determination of the acuteness of vision including the construction and graduation of optotypes Trans Am Ophthalmol Soc 10 [7] Sloan LL New test charts for the measurement of visual acuity at far and near distances Am J Ophthalmol 48 Cited by: 2.

On the Anomalies of Accommodation and Refraction of the accurately action acuteness of vision already angle appears assumed asthenopia astigmatism axis becomes calculation cause centre close condition consequently continued contrary convergence convex cornea correct corresponding crystalline lens On the Anomalies of Accommodation and.

The need for precision in visual acuity assessment for low vision research led to the design of the Bailey–Lovie letter chart. This paper describes the decisions behind the design principles used and how the logarithmic progression of sizes led to the development of the logMAR designation of visual acuity and the improved sensitivity gained from letter-by-letter by:   Test-Types for Determination of the Acuteness of Vision [Probebuchstaben zur Betimmung der Sehscharfe].

PW van de Weijer: Utrecht, PW Cited by: Page - The distribution of near-sightedness, chiefly in the cultivated ranks, points directly to its principal cause, viz.: tension of the eyes for near objects. Respecting this fact there can be no doubt. "Three factors may here come under observation: 1.

Pressure of the muscles on the eye-ball in strong convergence of the visual axes ; 2.