ophthalmoscope

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Related to indirect ophthalmoscope: binocular indirect ophthalmoscope

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
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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

[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.

ophthalmoscope

an instrument for examining the interior of the eye
References in periodicals archive ?
Figure 12-1: Total Binocular Indirect Ophthalmoscope Market by Segment, U.
Direct ophthalmoscope and Retinoscops, binocular indirect ophthalmoscope, binocular indirect ophthalmoscope- digital
In the prospective, multicenter Photographic Screening Study for ROP (PhotoROP), infants were examined both at bedside with the current imaging standard -- the indirect ophthalmoscope -- and remotely with the RetCam(TM) Digital Imaging System.
Tenders are invited for Supply of Indirect Ophthalmoscope With 20D Volk Lens Wireless
This consultation has broken 4 lots as follows: Lot 1: Excimer with accessories-lot 2: Multipoint Laser yellow spectrum: Part A: Supply of equipment, its accessories, delivery, installation, commissioning, part B: Equipment Maintenance, Part C: Provide accessories and supplies hardware and software, part D: Provision of sterile disposable consumables uniquelot 3: Laser hair removal and skin rejuvenation: Part A: Supply of equipment, delivery, installation, implementation servicepartie B: Maintenance EquipementsPartie C: Provision of accessories and consumables (excluding disposable sterile) Lot 4: Indirect Ophthalmoscope with video: Part A: Supply of Equipment and livraisonpartie B: Equipment Maintenance.
Virtual reality indirect ophthalmoscopes are available with pre-programmed virtual images of various retinal conditions to train registrars in the technique of indirect ophthalmoscopy, to recognise the pathology and to make retinal sketches.
Keeler, based in the UK, manufactures products such as direct and indirect ophthalmoscopes, non-contact tonometers and slit lamps, while Volk Optical, based in the USA, is a specialist in patented double aspherical optics.
The ophthalmic diagnostic equipment market includes perimeters, automatic and manual refractors, slit lamps, contact and non-contact tonometers, fundus cameras, automatic and manual lens meters, direct and indirect ophthalmoscopes, ultrasound equipment, corneal topography systems and other imaging systems.
Keywords: Contact lenses, Optical coherence tomographers, Fundus cameras,Slit lamps, Perimeters, Tonometers, Autorefractors and keratometers, Ophthalmic ultrasound systems, Binocular indirect ophthalmoscopes, Corneal topographers, Wavefront aberrometers, Soft contact lenses, Gas permeable contact lenses
This market includes: Optical Coherence, Tomographers, Fundus Cameras, Corneal Topographers, Slit lamps, Tonometers, Perimeters, Binocular Indirect Ophthalmoscopes, Ophthalmic Ultrasounds, Autorefractors and Keratometers and Wavefront Aberrometers.
IRIDEX Corporation (NASDAQ/NMS:IRIX) announced it will display three new products at the 1999 annual meeting of the American Academy of Ophthalmology (AAO) taking place in Orlando, Florida on October 24-27, 1999: the IRIS Medical Tri-Mode(TM) OcuLight(R) SLx, a new family of TruFocus(TM) Laser Indirect Ophthalmoscopes (LIO), and the EasyFit(TM) Conversion Kit to upgrade outdated argon laser photocoagulators.
The OcuLight OR is compatible with laser indirect ophthalmoscopes and endophotocoagulation probes as delivery device options for ophthalmologists to perform retinal photocoagulation procedures.

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