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Biomedical subjects

F W Newell

Publications and source records attributed to F W Newell.

At least 19 recordsLinked to original sources
PubMed1990

Peer review.

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Ophthalmology↗
PubMed1988

Edward Jackson, MD--a historical perspective of his contributions to refraction and to ophthalmology.

Edward Jackson died October 29, 1942, at 86 years of age. He served as president of the major national ophthalmologic organizations and was professor and chairman of the Department of Ophthalmology at the University of Colorado. He established the first graduate course for ophthalmologists, suggested the formation of the instruction courses of the American Academy of Ophthalmology, and was the principal founder of the American Board of Ophthalmology. He founded and edited the Yearbook of Ophthalmology and Ophthalmic Literature. In 1918, he became editor of the third series of the American Journal of Ophthalmology, which consolidated five ophthalmic periodicals. In 1885, he popularized retinoscopy in the United States and was mainly responsible for making it a practical refraction tool. Two years later, he described the cross cylinder to determine the presence or absence of astigmatism. In 1907, he described the use of the cross cylinder to refine the axis of a correcting cylinder in astigmatism. He lectured and wrote widely and published over 700 scientific articles, book chapters, and books.

History, 19th Century↗
PubMed1983

Metrics.

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France↗
PubMed1979

Autosomal recessive incomplete achromatopsia with deutan luminosity.

Four patients in three different families had a form of autosomal recessive incomplete achromatopsia not previously described. The visual acuity was 6/18 to 6/60 (20/60 to 20/200) with minimal ophthalmoscopic abnormality and normal fluorescein angiogram. The photopic electroretinographic responses were present in all four patients; the fusion rate of 60 Hz was only slightly subnormal. The high-intensity scotopic response was subnormal. The patients failed color screening plates and accumulated over 400 errors with scotopic axis on the Farnsworth-Munsell 100-hue test. The Rayleigh match was abnormal, displaced toward the red primary, but with normal luminance. The photopic luminous efficiency function was similar to that of the deuteranope. Color matching revealed a trichromatic form of color vision mediated by long wavelength and short wavelength cones, and a rhodopsin receptor.

Adolescent↗