BIOMAT Database Logo BIOMAT Database Logo

Assessment of stimulus field size for strabismic amblyopes. 1977

R F Hess

Recently, small-screen measurements have suggested different types of visual loss in strabismic amblyopia. The present experiment examined the influence of field size on this conclusion for low- and high-frequency measurements. The original findings are believed to be independent of the grating field size, because (1) in the present study of 4 amblyopes, normal and amblyopic eyes were affected equally by increasing the number of cycles, and (2) the amblyopes' foveas did not have high-frequency discrimination superior to that of the eccentric area used for fixation.

UI MeSH Term Description Entries
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000550 Amblyopia A nonspecific term referring to impaired vision. Major subcategories include stimulus deprivation-induced amblyopia and toxic amblyopia. Stimulus deprivation-induced amblyopia is a developmental disorder of the visual cortex. A discrepancy between visual information received by the visual cortex from each eye results in abnormal cortical development. STRABISMUS and REFRACTIVE ERRORS may cause this condition. Toxic amblyopia is a disorder of the OPTIC NERVE which is associated with ALCOHOLISM, tobacco SMOKING, and other toxins and as an adverse effect of the use of some medications. Anisometropic Amblyopia,Lazy Eye,Amblyopia, Developmental,Amblyopia, Stimulus Deprivation-Induced,Amblyopia, Suppression,Stimulus Deprivation-Induced Amblyopia,Amblyopia, Anisometropic,Amblyopia, Stimulus Deprivation Induced,Amblyopias,Amblyopias, Anisometropic,Amblyopias, Developmental,Amblyopias, Stimulus Deprivation-Induced,Amblyopias, Suppression,Anisometropic Amblyopias,Deprivation-Induced Amblyopia, Stimulus,Deprivation-Induced Amblyopias, Stimulus,Developmental Amblyopia,Developmental Amblyopias,Eye, Lazy,Eyes, Lazy,Lazy Eyes,Stimulus Deprivation Induced Amblyopia,Stimulus Deprivation-Induced Amblyopias,Suppression Amblyopia,Suppression Amblyopias
D013285 Strabismus Misalignment of the visual axes of the eyes. In comitant strabismus the degree of ocular misalignment does not vary with the direction of gaze. In noncomitant strabismus the degree of misalignment varies depending on direction of gaze or which eye is fixating on the target. (Miller, Walsh & Hoyt's Clinical Neuro-Ophthalmology, 4th ed, p641) Concomitant Strabismus,Dissociated Horizontal Deviation,Dissociated Vertical Deviation,Heterophoria,Heterotropias,Hypertropia,Non-Concomitant Strabismus,Nonconcomitant Strabismus,Phorias,Squint,Strabismus, Comitant,Strabismus, Noncomitant,Convergent Comitant Strabismus,Mechanical Strabismus,Comitant Strabismus,Comitant Strabismus, Convergent,Deviation, Dissociated Horizontal,Dissociated Horizontal Deviations,Dissociated Vertical Deviations,Heterophorias,Heterotropia,Horizontal Deviation, Dissociated,Hypertropias,Non Concomitant Strabismus,Noncomitant Strabismus,Phoria,Strabismus, Concomitant,Strabismus, Convergent Comitant,Strabismus, Mechanical,Strabismus, Non-Concomitant,Strabismus, Nonconcomitant
D014787 Vision Tests A series of tests used to assess various functions of the eyes. Test, Vision,Tests, Vision,Vision Test
D014792 Visual Acuity Clarity or sharpness of OCULAR VISION or the ability of the eye to see fine details. Visual acuity depends on the functions of RETINA, neuronal transmission, and the interpretative ability of the brain. Normal visual acuity is expressed as 20/20 indicating that one can see at 20 feet what should normally be seen at that distance. Visual acuity can also be influenced by brightness, color, and contrast. Acuities, Visual,Acuity, Visual,Visual Acuities

Related Publications

R F Hess
[Visual field defects in strabismic amblyopes].
April 1989, Klinische Monatsblatter fur Augenheilkunde,
R F Hess
Monocular geometry is selectively distorted in the central visual field of strabismic amblyopes.
September 1989, Investigative ophthalmology & visual science,
R F Hess
Investigation of visual field defects in strabismic and anisometropic amblyopes with the Octopus program G1.
January 1989, Graefe's archive for clinical and experimental ophthalmology = Albrecht von Graefes Archiv fur klinische und experimentelle Ophthalmologie,
R F Hess
Abnormal orientation selectivity in both eyes of strabismic amblyopes.
September 1979, Experimental brain research,
R F Hess
Differences in vernier discrimination for grating between strabismic and anisometropic amblyopes.
September 1982, Investigative ophthalmology & visual science,
R F Hess
Binocular facilitation in the visual-evoked potential of strabismic amblyopes.
October 1981, American journal of optometry and physiological optics,
R F Hess
Hyperacuity thresholds for oscillatory movement are abnormal in strabismic and anisometropic amblyopes.
May 1991, Optometry and vision science : official publication of the American Academy of Optometry,
R F Hess
Bilateral oculomotor abnormalities in strabismic amblyopes: evidence for a common central mechanism.
June 1985, Documenta ophthalmologica. Advances in ophthalmology,
R F Hess
BOLD fMRI and DTI in strabismic amblyopes following occlusion therapy.
August 2016, International ophthalmology,
R F Hess
Fixational drift and nasal-temporal pursuit asymmetries in strabismic amblyopes.
May 1990, Investigative ophthalmology & visual science,
Copied contents to your clipboard!