Axiell Internet Server 6 | Details | Decagon ophthalmoscope

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Actions	Decagon ophthalmoscope Remove from selection Add to selection Object number@FLI TitleDecagon ophthalmoscope CreatorC Davis Keeler (agent)‎ DescriptionThe decagon ophthalmoscope, also known as the 'master' ophthalmoscope, was first invented in 1929 by C. Davis Keeler. It brought two new functions to the device including the estimation of refractive error (along with astigmatism) and the precise location and measurements of any object within view of the fundus. The Decagon consisted of a Morton magazine of lenses on the front, and on the back a circular drum showing the five different optical systems that could be used for: -direct ophthalmoscopy -retinoscopy and indirect ophthalmoscopy -a small beam concentration used for searching for opacities in the media -projection of a reflecting graticule with axis determination in astigmatism -Morgan retinal graticule for locating and measuring any object found in the retina Included in the box is a small 'brush' with a dab of cotton on the end, and an extra bulb. The company C. Davis Keeler began in 1917 and supplied high quality dispensing services and spectacles to the patients of ophthalmologists. Production placeENGLAND Production periodTwentieth century, early Object nameOphthalmoscope Object categoryINSTRUMENT MaterialSteel Dimensions Box Length: 27.0 cm Box Width: 6.0 cm

Object number@FLI

TitleDecagon ophthalmoscope

DescriptionThe decagon ophthalmoscope, also known as the 'master' ophthalmoscope, was first invented in 1929 by C. Davis Keeler. It brought two new functions to the device including the estimation of refractive error (along with astigmatism) and the precise location and measurements of any object within view of the fundus. The Decagon consisted of a Morton magazine of lenses on the front, and on the back a circular drum showing the five different optical systems that could be used for: -direct ophthalmoscopy -retinoscopy and indirect ophthalmoscopy -a small beam concentration used for searching for opacities in the media -projection of a reflecting graticule with axis determination in astigmatism -Morgan retinal graticule for locating and measuring any object found in the retina Included in the box is a small 'brush' with a dab of cotton on the end, and an extra bulb. The company C. Davis Keeler began in 1917 and supplied high quality dispensing services and spectacles to the patients of ophthalmologists.

Production placeENGLAND

Production periodTwentieth century, early

Object nameOphthalmoscope

Object categoryINSTRUMENT

MaterialSteel

Dimensions

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