Direct ophthalmoscope

Direct ophthalmoscope

An ophthalmoscope which provides an illuminating system, a viewing system and corrective lenses which allow the observer to view the patient's eye directly, that is without the formation of an intermediate image.

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Part of Speech: noun
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Industry/Domain: Eyewear
Category: Optometry
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Related terms

direct ophthalmoscope

Eyewear; Optometry

An ophthalmoscope which provides an illuminating system, a viewing system and corrective lenses which allow the observer to view the patient's eye directly, that is without the ...

ophthalmoscope

Eyewear; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

ophthalmoscope

Optometry; Optometry

An optical instrument used to examine the external and internal parts of the eye, particularly the media and the fundus.

ophthalmoscope

Health care; Cancer treatment

A lighted instrument used to examine the inside of the eye, including the retina and the optic nerve.

ophthalmoscope

Medical; Health care; Medicine

Devices for examining the interior of the eye, permitting the clear visualization of the structures of the eye at any depth.

ophthalmoscope

Language; Dictionaries

An instrument for viewing the interior of the eye, particularly the retina. Light is thrown into the eye by a mirror (usually concave) and the interior is then examined with or ...

pantoscopic angle

Eyewear; Optometry

1. Angle in the vertical plane between the optical axis of a spectacle lens and the visual axis of the eye in the primary position, usually taken to be the horizontal. 2. Angle ...

optical material

Eyewear; Optometry

Transparent material capable of being manufactured into optical components.

optical radiation hazard

Eyewear; Optometry

Possibility of damage to the retina by optical radiation.

optical centre

Eyewear; Optometry

For practical purposes, the intersection of the optical axis with the front surface a lens.

ophthalmoscope graticules

Eyewear; Optometry

Patterns or targets or graticules which can be optionally positioned in the illuminating light path within the instrument and which will be imaged on the retina for diagnostic, ...