Ophthalmic instrument tests and helps develop focusing ability. Movable stage on a fixed base permits adjustment of effective target position as perceived by subject. Various apertures used to perform tests and training procedures. Ophthalmic instrument provides four functions: it measures visual near and far points; provides focus stimulus in vision research; measures visual-accommodation resting position; can be used to train for volitional control of person's focus response.


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    Titel :

    Visual-Accommodation Trainer/Tester


    Beteiligte:

    Erschienen in:

    Erscheinungsdatum :

    1986-06-01



    Medientyp :

    Sonstige


    Format :

    Keine Angabe


    Sprache :

    Englisch


    Schlagwörter :


    Visual accommodation trainer-tester

    Randle, R. J., Jr. | NTRS | 1983



    The non-visual in visual accommodation

    Randle, R. J. | NTRS | 1975


    Training the visual accommodation system.

    Cornsweet, T. N. / Crane, H. D. | NTRS | 1973


    Experimental study of visual accommodation

    Cornsweet, T. N. / Crane, H. D. | NTRS | 1972