Ophthalmoscopy

Examination of the interior of the eye, including the lens, retina and optic nerve, by indirect or direct ophthalmoscopy. Indirect ophthalmoscopy employs a head lamp device to shine a very bright light into the eye. This is generally done by an ophthalmologist. Direct ophthalmoscopy is in more common usage. The examiner uses a device the size of a flashlight to examine the eye. The device consists of a concave mirror and a battery-powered light (contained within the handle). The operator looks through a single monocular eyepiece into the patient's eye. The ophthalmoscope is equipped with a rotating disc of lenses to permit the eye be examined at different depths and magnifications. This may be enhanced by drugs that dilate the pupil and enlarge the opening into the structures within the eye. The ophthalmoscope is invaluable in many fields of medicine, including cardiology (cardiovascular disease), hematology, medical genetics, neurology, neurosurgery, rheumatology, family medicine, pediatrics, internal medicine, and geriatrics. Visualization of the retina is important in conditions such as the effects of glaucoma, diabetes, and hypertension and in conditions such as brain tumors and meningitis/encephalitis which may cause increased intracranial pressure. The invention of the ophthalmoscope is often erroneously credited to the great German physician-scientist Hermann von Helmholtz (1821-1894). Helmholtz demonstrated the principle of the ophthalmoscope in 1850 using a crude device (cardboard, glue, and microscope glass plates). By means of his ophthalmoscope, Helmholtz could place the eye of the observer in the path of the rays of light entering and leaving the patient's eye, allowing the patient's retina to be seen. However, Helmholtz was neither the first person to look into the living retina nor the first to fashion a device for viewing the retina. In 1823 Johannes Purkinje observed the back of the eye and in 1847 Charles Babbage fashioned an ophthalmoscope similar to the one later developed by Helmholtz. The work of Purkinje and Babbage lay largely unknown. Helmholtz rediscovered the ophthalmoscope and immediately realized and communicated its importance.
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Examination of the fundus of the eye by means of the ophthalmoscope. SYN: funduscopy.
- direct o. o. performed with a direct ophthalmoscope.
- indirect o. o. performed with an indirect ophthalmoscope.
- o. with reflected light examination of that part of the fundus adjacent to an area illuminated by a sharply focused light.

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oph·thal·mos·co·py .äf-thal-'mäs-kə-pē n, pl -pies examination of the eye with an ophthalmoscope

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oph·thal·mos·co·py (of″thəl-mosґkə-pe) the examination of the interior of the eye with the ophthalmoscope. Called also funduscopy.

Normal fundus viewed by ophthalmoscopy.


Medical dictionary. 2011.

Look at other dictionaries:

  • Ophthalmoscopy — Intervention Ophthalmoscopic exam: the medical provider would next move in and observe with the ophthalmoscope from a distance of one to several cm. MeSH …   Wikipedia

  • Ophthalmoscopy — Oph thal*mos co*py, n. [Cf. F. ophthalmoscopie.] 1. A branch of physiognomy which deduces the knowledge of a person s temper and character from the appearance of the eyes. [1913 Webster] 2. Examination of the eye with the ophthalmoscope. [1913… …   The Collaborative International Dictionary of English

  • ophthalmoscopy — noun see ophthalmoscope …   New Collegiate Dictionary

  • ophthalmoscopy — ophthalmoscopist, n. /of thal mos keuh pee, theuhl , op /, n., pl. ophthalmoscopies. the use of or technique of using an ophthalmoscope. [1720 30; OPHTHALMO + SCOPY] * * * …   Universalium

  • ophthalmoscopy — noun The design, construction and use of ophthalmoscopes …   Wiktionary

  • ophthalmoscopy — n. examination of the eyes with an ophthalmoscope (device for examining the eyes) …   English contemporary dictionary

  • ophthalmoscopy — oph·thal·mos·co·py …   English syllables

  • ophthalmoscopy — fundoscopy …   The new mediacal dictionary

  • ophthalmoscopy — /ɒfθælˈmɒskəpi/ (say ofthal moskuhpee) noun (plural ophthalmoscopies) an examination of the eye using an ophthalmoscope …   Australian English dictionary

  • ophthalmoscopy — noun examination of the interior of an eye using an ophthalmoscope • Hypernyms: ↑examination, ↑scrutiny …   Useful english dictionary

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