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Glare and age.
- E. Wolf
- MedicineA M A Archives of Ophthalmology
- 1 October 1960
The visibility of objects is reduced in the presence of glare, particularly in the vicinity of a blinding glare source, and the contrast between figure and ground must be enhanced, or the size of the object seen must be increased.
Location of the break in the dark adaptation curve in relation to pre-exposure brightness and pre-exposure time.
Dark adaptation curves are obtained by presenting a 2° square test field, subdivided by vertical bars, 6° in the lateral parafovea, indicating that pre-exposure brightness and pre-Exposure time are not reciprocally interchangeable as far as the location of the break is concerned.
THE FLICKER RESPONSE CONTOUR FOR THE ISOPOD ASELLUS
The flicker response contour for the isopod Asellus is a simple probability integral (F - log I) over the whole determinable range (F = 1 to 51). This contrasts with the "distorted" asymmetrical…
Visual function in past users of LSD: psychophysical findings.
Depth Perception as a Function of Age
Binocular depth perception was investigated in 164 healthy Ss of the Normative Aging Study and a marked diminution to make stereoptic judgments occurred in the forties decade, in accordance with the model.
Retinal functions in snowflake degeneration.
The results indicate that in snowflake degeneration, functional abnormalities of the retina are milder than those in other progressive primary retinal degenerations typically represented by retinitis pigmentosa.
THE VISUAL ACUITY OF THE HONEY BEE
It is shown that the bee's eye is essentially an instrument for uni-directional visual resolution, functional along the dorso-ventral axis, and that the threshold of the various ommatidia are not the same but that they vary as any other characteristic of a population.
CRITICAL FREQUENCY OF FLICKER AS A FUNCTION OF INTENSITY OF ILLUMINATION FOR THE EYE OF THE BEE
- E. Wolf
- BiologyThe Journal of general physiology
- 20 September 1933
An analysis of the variation of the values for threshold intensities at the several flicker frequencies shows that the variation depends upon flicker frequency and upon the number of elements functioning at different intensities.
THE DARK ADAPTATION OF THE EYE OF THE HONEY BEE
A curve describing the course of dark adaptation is obtained, which shows that the sensitivity of the light adapted bee's eye increases rapidly during the first few minutes in darkness, then more slowly until it reaches a maximum level after 25 to 30 minutes.
Laboratory evaluation of a clinical glare tester.
A glare sensitivity tester has been designed to be used in a clinical setting and results indicated the mild degrees of turbidity increase glare sensitivity but do not affect visual acuity.