ophthalmoscope

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ophthalmoscope

(ŏfthăl`məskōp'), instrument used for examining the inner structure of the eyeeye,
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 other
..... Click the link for more information. . 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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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.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

ophthalmoscope

an instrument for examining the interior of the eye
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
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References in periodicals archive ?
In children, although it is common to demonstrate ophthalmoscopic findings such as isolated retinal microaneurysms or small unilateral hemorrhages (all of which are signs of nonproliferative diabetic retinopathy (NPDR)), it is extremely rare to find preproliferative retinopathy, proliferative retinopathy, or macular edema, regardless of the degree of metabolic control or the time of evolution of diabetes [4], with a clear tendency in our days to the decrease in the detection of retinopathy [4, 9, 10].
Decreased Retinal Thickness in Type 1 Diabetic Children with Signs of Nonproliferative Diabetic Retinopathy
If not observed initially, returning to the ONH at the end of the ophthalmoscopic examination and a further period of studying the peripapillary area often reveals SVP.
Ophthalmodynamometry
As early diagnosis is important in order to handle the treatable complications of WS, routine ophthalmoscopic and urological evaluation is recommended in all patients with non-autoimmune, insulin-deficient DM at the time of diagnosis.
Clinical and Molecular Genetic Analysis in Three Children with Wolfram Syndrome: A Novel WFS1 Mutation (c.2534T>A)
McLeod, "Ophthalmoscopic signs of obstructed axoplasmic transport after ocular vascular occlusions," British Journal of Ophthalmology, vol.
Mystery of Retinal Vein Occlusion: Vasoactivity of the Vein and Possible Involvement of Endothelin-1
(21) In a report of 40 infants with microcephaly and presumed CZS from Pernambuco, Brazil, Ventura et al (22) described ophthalmoscopic alterations in 55% (n = 22) of the infants.
Zika Virus Infection in Pregnancy, Microcephaly, and Maternal and Fetal Health: What We Think, What We Know, and What We Think We Know
Ophthalmoscopic examination using slit lamp and indirect lens along with intraocular pressure (IOP) measurement in pre and post operative subsequent follow up was done.
SURGICAL AND VISUAL OUTCOMES OF RETINAL DETACHMENT SURGERY IN EYES WITH CHORIO-RETINAL COLOBOMA
Once diabetes was confirmed at BHU by the Medical Officer after obtaining venous blood samples, individuals were referred for detailed ophthalmoscopic examination as well as to BHU physician for diabetes management.
A simple integrated primary health care based model for detection of diabetic retinopathy in resource-limited settings in Pakistani population
Triamcinolone was found to be as safe as the prednisolone in terms of adverse effects, changes in visual acuity, IOP, and biomicroscopic and ophthalmoscopic variables.9
Comparison of the safety and efficacy of single injection of subtenon triamcinolone and topical dexamethasone in reducing postoperative inflammation after phacoemulsification and intraocular lens implantation
The canine ocular fundus showed enormous variations in normal ophthalmoscopic appearance.
Ocular Funduscopy of Different Canine Breeds in India - A Clinical Study of 70 Normal Dogs
Patients were examined including visual acuity, pupillary reactions and slit lamp bimicroscopy and ophthalmoscopic examination of both anterior and posterior segments.
COMPARISON OF INTRAOCULAR PRESSURE MEASURED WITH GOLDMANN APPLANATION TONOMETER AND NON-CONTACT AIR-PUFF TONOMETER
However, the investigators noted, the findings suggest the possibility "that even oligosymptomatic or asymptomatic pregnant patients presumably infected [with Zika virus] may have microcephalic newborns with ophthalmoscopic lesions" and those newborns should be routinely evaluated for ocular symptoms.
Ocular symptoms accompany Zika microcephaly
Ophthalmoscopic examination of both the eyes revealed bilateral panuveitis.
Multiple sclerosis and panuveitis: a rare association

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