Results 141 to 150 of about 173,282 (180)

Fresnel Prism Update

JAMA Ophthalmology, 2001
Gail V Morton, Kurt Simons, Robert D Reinecke   +2 more
exaly   +3 more sources

Space-Time Fresnel Prism for Practical Dynamic Systems

, 2023
This paper presents the concept of a space-time Fresnel prism, a space-time version of the conventional Fresnel prism. This prism emulates the operation of a space-time interface, the building brick of any modulation-based space-time metamaterial, while ...
Christophe Caloz, Zhiyu Li
exaly   +2 more sources

An Evaluation of the Use of Fresnel Press-On Prisms in Childhood Strabismus

American Orthoptic Journal, 1975
Sally Moore
exaly   +3 more sources

Fresnel Prism Membrane in Acquired Extraocular Muscle Palsy

American Orthoptic Journal, 1974
exaly   +3 more sources

Fresnel Prisms in the Management of Combined Horizontal and Vertical Strabismus

American Orthoptic Journal, 1972
Sally Moore
exaly   +3 more sources

FRESNEL PRISM CORRECTION FOR TRAUMA‐INDUCED DIPLOPIA

Ophthalmic and Physiological Optics, 1985
Abstract— Fresnel prisms placed on the spectacle lenses of a patient with optic atrophy resulting from an accident eliminated constant diplopia in the remaining visual field. A reduction in vision due to Fresnel prisms was found to be more tolerable than diplopia.
G C, Woo, J V, Lovasik
openaire   +3 more sources

Fresnel Prism Therapy for Right Hemianopia

American journal of optometry and physiological optic, 1983
ABSTRACT Fresnel prisms placed on the spectacle lenses of a patient with right hemianopia provide an easier means for the patient to become aware of objects located in the blind field. Exact location of the prisms is important.
G C, Woo, T, Mandelman
openaire   +2 more sources

The Therapeutic Scope of the Fresnel Press-On Prism: Three Interesting Cases

American Orthoptic Journal, 1975
exaly   +3 more sources

Fresnel vs. Conventional Prisms

American journal of optometry and physiological optic, 1988
ABSTRACT Among the inherent optical aberrations found in conventional crown glass or resin prisms is the property known as nonuniform relative magnification. Prisms, by definition, displace an image by a given amount. However, the final size of the image is nonuniform, being relatively larger toward the apex than toward the base of ...
S M, Brunnett, M T, Munson, D G, Kirschen   +2 more
openaire   +2 more sources

EFFECT OF FRESNEL PRISM DISPERSION ON CONTRAST SENSITIVITY FUNCTION*

Ophthalmic and Physiological Optics, 1986
Abstract— Fresnel prisms are often used in orthoptics for binocular anomalies and in low vision for visual field defects. These prisms are made of optical polyvinyl chloride (PVC) and this material increases chromatic dispersion and produces a loss of contrast.
G C, Woo, F W, Campbell, B, Ing
openaire   +2 more sources