solar retinopathy

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A macular burn from excessive exposure to sunlight or other intense light (for example, the flash of a short circuit); characterized subjectively by reduced visual acuity.
See also: solar maculopathy.
[photo- + retina, + G. pathos, suffering]
Farlex Partner Medical Dictionary © Farlex 2012

solar retinopathy

Pathological changes in the retina after looking directly at the sun. This condition is seen frequently following an eclipse of the sun. Synonym: eclipse retinopathy
See: scotoma, eclipse
See also: retinopathy
Medical Dictionary, © 2009 Farlex and Partners


1. Spatial display of a complex radiation produced by separation of its monochromatic components.
2. Composition of a complex radiation, e.g. continuous spectrum, line spectrum (CIE). Plural: spectra. See light.
absorption spectrum The curve representing the relative absorption of a pigment or chemical substance as a function of the wavelength of light. Example: the absorption spectrum of rhodopsin. Syn. absorbance spectrum.
action spectrum A graphical representation of the relative energy necessary to produce a constant biological effect. Example: frequency of action potentials in a ganglion cell as a function of wavelength.
continuous spectrum A spectrum in which, over a considerable range, all wavelengths exist without any abrupt variation in intensity. Example: the spectrum of hot solids. See filament lamp.
electromagnetic spectrum The total range of all electromagnetic waves. It extends from the longest radio waves of some thousands of metres in wavelength through radar, microwave, infrared rays, visible rays (between wavelengths 780nm and 380nm) to ultraviolet rays, X-rays, gamma rays and cosmic rays with wavelengths as short as 8 ✕ 10−12mm. All these electromagnetic waves differ only in frequency (and wavelength) but have the same speed as light in a vacuum.
equal energy spectrum Spectrum in which all wavelengths have about the same amount of energy. See achromatic; white light.
fortification spectrum See scintillating scotoma.
invisible spectrum The portions of the entire electromagnetic spectrum that are made up of radiations other than those of the visible spectrum.
line spectrum Spectrum consisting of a series of discrete monochromatic lines (or narrow bands of monochromatic light) with large intensity differences and separated by intervals without radiations. Example: the spectrum emitted by an electric discharge through a gas or vapour under low pressure.
spectrum locus The representation of the spectral colour stimuli on a chromaticity diagram.
solar spectrum The spectrum formed by sunlight. It is crossed at intervals by Fraunhofer's lines.
visible spectrum The portion of the electromagnetic spectrum that can be perceived by the visual system. It is composed of radiations of wavelengths in the range between 380nm and 780nm in younger eyes. This range decreases with age especially due to lens absorption of short wavelengths becoming closer to 420nm than 380nm. See light.

Table S4 Approximate values of the velocity, frequency and wavelength of electromagnetic radiations in a vacuum (the values represent a point within a range of radiations)
radiationvelocity (m/s)frequency (Hz)(m)(nm)
AM radio3 ✕ 108 1 ✕ 106 3 ✕ 1023 ✕ 1011
television3 ✕ 108 1 ✕ 108 33 ✕ 109
radar3 ✕ 108 1 ✕ 109 3 ✕ 10−13 ✕ 108
microwave3 ✕ 108 1 ✕ 1010 3 ✕ 10−23 ✕ 107
thermal infrared3 ✕ 108 1 ✕ 1013 3 ✕ 10−53 ✕ 104
near infrared3 ✕ 108 1 ✕ 1014 3 ✕ 10−63000
red3 ✕ 1083.94 ✕ 10147.6 ✕ 10−7760
yellow3 ✕ 1085.45 ✕ 10145.5 ✕ 10−7550
violet3 ✕ 1087.50 ✕ 10144.0 ✕ 10−7400
ultraviolet3 ✕ 108 1 ✕ 1016 3 ✕ 10−830
X-rays3 ✕ 108 1 ✕ 1018 3 ✕ 10−100.3
gamma rays3 ✕ 108 1 ✕ 1021 3 ✕ 10−130.0003
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann
References in periodicals archive ?
When the findings were taken together, the patient was diagnosed with solar retinopathy due to the characteristic symptoms and bilateral findings present after an episode of sun gazing.
Fundus examinations, fluorescein angiography, OCT, and FAF have all shown that damage to the retina during the acute phase (within a few hours of onset) of solar retinopathy generally exhibits abnormalities of the photoreceptor cells and retinal pigment epithelium at the fovea [3-6].
Previous studies have reported that most solar retinopathy cases have a complete recovery of vision within a few weeks or months, although there are some cases in which there is decreased vision and/or central scotoma over a long period of time [8, 9].
A spokesman said: "We are assessing people and giving them advice, but there is little we can do to treat solar retinopathy.
The serious damage is solar retinopathy which destroys cells at the back of the eye.