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Ophthalmoscope |
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PanOptic Ophthalmoscope The revolutionary PanOptic provides easy entry into the eye, together with a wider field of view to more easily observe conditions such as hypertension, diabetic retinopathy, and papilledema. |
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3.5 V AutoStep Coaxial Ophthalmoscope Patented coaxial optics, Halogen HPX illumination, and 68 focusing lenses combine for premium quality. |
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3.5 V Coaxial Ophthalmoscope The patented Welch Allyn Coaxial Vision System facilitates ophthalmoscopy by enabling easier entry into the eye, a larger field of view, and reduced glare compared to standard ophthalmoscopes. |
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3.5 V Standard Ophthalmoscope Uses halogen light for true tissue color and consistent, long-lasting illumination. Versatile and reliable at an economical price. |
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PocketScope Ophthalmoscope Lightweight, compact diagnostic instruments deliver high performance in a slightly smaller package. |
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Prestige Coaxial-Plus Ophthalmoscope Patented Coaxial-Plus optics enable easy entry into undilated pupils for more accurate diagnoses, while two filter selections provide optimum light levels for entering healthy eyes and those with cataracts. |
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Opthalmoscope | |||||||||
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The ophthalmoscope (or funduscope) is used to examine the eye. In patients with headaches,
the finding of swollen optic discs, or papilledema, on ophthalmoscopy is a key sign, as this indicates raised intracranial pressure (ICP) which could be due to hydrocephalus, benign intracranial hypertension
(aka pseudotumor cerebri) or brain tumor, amongst other conditions. Cupped optic discs are seen in glaucoma. In patients with
diabetes mellitus, regular ophthalmoscopic eye examinations (once every 6 months to 1 year) are important to screen for diabetic retinopathy as visual
loss due to diabetes can be prevented by retinal laser treatment
if retinopathy is spotted early. In arterial hypertension, hypertensive changes of the retina closely mimic those in the brain, and may predict cerebrovascular accidents (strokes). Numerous companies manufacture
direct ophthalmoscopes, including Welch Allyn.
Ophthalmoscopes are often sold with otoscopes as a diagnostic set.
Direct ophthalmoscope It is an instrument about the size of a small flashlight (torch) with several lenses that can magnify up to about 15 times. This type of ophthalmoscope is most commonly used during a routine physical examination Indirect ophthalmoscope An indirect ophthalmoscope constitutes a light attached to a headband, in addition to a small handheld lens. It provides a wider view of the inside of the eye. Furthermore, it allows a better view of the fundus of the eye, even if the lens is clouded by cataracts. An indirect ophthalmoscope can be either monocular or binocular. Ophthalmoscope , instrument used for examining the inner structure of the eye . 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. |
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Diagnostic Sets,
Welch Allyn Ophthalmoscope
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