Results 121 to 130 of about 4,004 (172)
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Acta Ophthalmologica, 1982
A prototype of TV indirect ophthalmoscope (black‐and‐white type) was developed to enhance education in ophthalmology. Its weight is 450 g, and pictures obtained were fairly satisfactory. The authors have used this ophthalmoscope not only for practicing indirect iphthalmoscopy by students, but also as monitoring device during retinal surgery.
K, Sasaki, H, Nakaizumi
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A prototype of TV indirect ophthalmoscope (black‐and‐white type) was developed to enhance education in ophthalmology. Its weight is 450 g, and pictures obtained were fairly satisfactory. The authors have used this ophthalmoscope not only for practicing indirect iphthalmoscopy by students, but also as monitoring device during retinal surgery.
K, Sasaki, H, Nakaizumi
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Photic Maculopathy Produced by the Indirect Ophthalmoscope
American Journal of Ophthalmology, 1972Mark O.M. Ts'o +2 more
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Ophthalmologica, 1975
A hand-instrument is described, which serves the purpose of direct and indirect ophthalmoscopy. One part of the instrument, which may be used alone, is a direct ophthalmoscope; it comprises as a distinctive feature a mirror which is vertically movable.
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A hand-instrument is described, which serves the purpose of direct and indirect ophthalmoscopy. One part of the instrument, which may be used alone, is a direct ophthalmoscope; it comprises as a distinctive feature a mirror which is vertically movable.
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Optical Engineering, 1980
A new indirect ophthalmoscope has been developed that combines a viewing lens and a compact illumination system in a small, prealigned, easy-to-use package. Undesirable back reflections are eliminated by admitting the illumination behind the viewing lens via beamsplitter, and by using polarized light.
Dietrich Korsch, S. H. Hay
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A new indirect ophthalmoscope has been developed that combines a viewing lens and a compact illumination system in a small, prealigned, easy-to-use package. Undesirable back reflections are eliminated by admitting the illumination behind the viewing lens via beamsplitter, and by using polarized light.
Dietrich Korsch, S. H. Hay
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A NEW MAGNIFYING INDIRECT STEREO OPHTHALMOSCOPE
Retina, 1992A new magnifying indirect stereo ophthalmoscope had been designed, built, and tested. Magnification is achieved by means of Keplerian telescopic systems mounted in each eyepiece. Schmidt or Pechan prisms are incorporated to shorten the length of the telescopic systems.
M J, Cuypers, I J, Constable
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Erecting Prism Attachment for Indirect Ophthalmoscopes
Archives of Ophthalmology, 1970Prismatic inverters are used to erect the inverted image of indirect ophthalmoscopy. Binocular and monocular indirect ophthalmoscopes can be equally well adapted to yield upright imagery. The inverter fits only to the central area of field that is congruous with the handheld lens.
K, Schirmer, M, Shea
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Indirect ophthalmoscopes: evaluation for potential hazard
Applied Optics, 1992The optical radiation emitted from eight indirect ophthalmoscopes was measured. The levels were compared with the threshold limit values (TLVs) published by the American Conference of Governmental Industrial Hygienists. Many tested instruments were found to emit unnecessarily high levels ofultraviolet and infrared radiation in addition to visible light.
S A, Miller, R H, James, D H, Sliney
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The Monocular Indirect Ophthalmoscope
Clinical and Experimental Optometry, 1969(1969). The Monocular Indirect Ophthalmoscope. Clinical and Experimental Optometry: Vol. 52, No. 4, pp. 110-111.
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A Portable Monocular Indirect Ophthalmoscopic Technique
American Journal of Ophthalmology, 1975A simple, inexpensive, and portable method of monocular indirect ophthalmoscopy is used as the physician's examining eye is aligned in the axis of the patient's eye, a flashlight is held against the examiner's malar area beneath the dominant eye, and the beam of the flashlight is directed to the patient's eye.
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Portable Battery-Powered Indirect Ophthalmoscope for Field Surveys
Ophthalmic Surgery, Lasers and Imaging Retina, 1987ABSTRACT Portable indirect ophthalmoscopy is a useful adjunct to field surveys and rural eye care in developing nations. The method for converting an electricallypowered indirect ophthalmoscope to a portable battery-powered unit is described.
L, Schwab, J W, Swartwood
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