Molteno et al., 1993 - Google Patents

Reliability of the Otago photoscreener A study of a thousand cases

Molteno et al., 1993

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Document ID
4944403721436484863
Author
Molteno A
Hoare‐Nairne J
Sanderson G
Peart D
Hodgkinson I
Publication year
Publication venue
Australian and New Zealand Journal of Ophthalmology

External Links

Snippet

The Otago photoscreener is a 35 mm single lens reflex camera in which the flash light comes from a narrow ring around the outer margin of its lens. The margin is also the limiting aperture of the optic system and in the centre of the lens is a flickering fixation light. In a …
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Classifications

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    • A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/14—Arrangements specially adapted for eye photography
    • A61B3/15—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection; with means for relaxing
    • A61B3/152—Arrangements specially adapted for eye photography with means for aligning, spacing or blocking spurious reflection; with means for relaxing for aligning
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    • A61B3/1176—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for examining the anterior chamber or the anterior chamber angle, e.g. gonioscopes for examining the eye lens for determining lens opacity, e.g. cataract
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    • A61B3/1225—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for looking at the eye fundus, e.g. ophthalmoscopes using coherent radiation
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    • A61B3/032—Devices for presenting test symbols or characters, e.g. test chart projectors
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    • A61B3/0016—Operational features thereof

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