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ophthalmoscope
(redirected from Fundoscopy)

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ophthalmoscope (ŏfthăl`məskōp'), instrument used for examining the inner structure of the eye eye, organ of vision and light perception. In humans the eye is of the camera type, with an iris diaphragm and variable focusing, or accommodation. Other types of eye are the simple eye, found in many invertebrates, and the compound eye, found in insects and many
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. The device was invented by the German physiologist H. L. F. von Helmholtz in 1851. His model consisted of three plates of glass pressed together and mounted on a handle at a 45° angle. A light was placed beside the subject whose eyes were to be examined. Some light passed through the plates, but some was reflected back into the eye. The form of the instrument now in general use consists of a concave mirror and a battery-powered light source within a tubular handle. Sighting is through a single or binocular eyepiece. The ophthalmoscope is equipped with a rotating disc of lenses to permit observation of the eye at varying depths and magnifications. Examination of the eye may be enhanced by administering drugs to dilate the pupil.
ophthalmoscope
an instrument for examining the interior of the eye

ophthalmoscope [äf′thal·mə‚skōp]
(optics)
An instrument, consisting essentially of a concave mirror with a hole in it and fitted with lenses of different powers, for examining the interior of the eye through the pupil.


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Fundoscopy should always form part of the clinical examination, as focal retinal lesions are common in patients with CVC-derived Candida infection, even when blood cultures are negative (Fig.
Dilated fundoscopy revealed a new large infero-temporal area of haemorrhagic retinitis, with exudates and vasculitis (Figure 1).
Fundoscopy revealed optic disk edema, but no afferent pupillary defect was seen.
 
 
 
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