The execution of normal saccadic eye movements was found to depend upon clearlyvisible fixation points. Eye movements made in the dark or in an otherwise homogeneous fieldexhibited 10% longer durations and 16% slower maximum velocities than those between wellilluminated targets. An increase in duration is already noticeable when the fixation points disappear350 msec before the s...

Active vision is an essential part of every biological organism possessing an eye system: posture, eye movements, visual research, . . . All require a motion percept to operate. At the basis of active vision lays the ability to calculate movements of objects in the scene, at least on a su cient level to react correctly. In this report we present a model of motion integration and segmentation in...

Familial hypoplasia of the iris stroma associated with glaucoma has been recorded on four occasions, this being the first report in the English literature. In all cases the condition has been inherited as an autosomal dominant trait. Berg (1932) described thirteen men and nine women affected in six generations. They were first seen between the ages of I6 and 43 years, and eight eventually becam...

Chronologies developed from annual growth-increment widths of splitnose rockfish (Sebastes pinniger) and yelloweye rockfish (Sebastes ruberrimus) otoliths were compared with time series of lay date and fledgling success for the common murre (Uria aalge) and Cassin’s auklet (Ptychoramphus aleuticus) in the north-central California Current. All time series were exactly dated and spanned 1972 thro...

Using an apparatus which presents simultaneously the components for binocular color mixing to each eye and an additive, comparison mixture of the components to both eyes, an investigation was made of the effects of stimulus size, exposure time, and surround on the frequency with which the observers reported matching binocular mixtures. A comparison of binocular with additive mixtures as a funct...

Étudier avec un suivi minimum de 10 ans les conséquences fonctionnelles et anatomiques du pelage la membrane limitante interne (MLI) dans chirurgie des trous maculaires idiopathiques. Étude rétrospective portant sur patients opérés succès d’un trou maculaire idiopathique avant 2010. Tous ont bénéficié d’une vitrectomie MLI après coloration. L’évaluation fonctionnelle comprenait mesure l’acuité ...

PT. O presente artigo discute as relações entre a utilização de enquadramentos sensacionalistas pelo jornalismo brasileiro e o caso da série documental Netflix Bandidos na TV, que conta história do ex-deputado Wallace Souza programa Canal Livre. foi deputado estadual Amazonas por três mandatos consecutivos apresentador Livre, bateu recordes audiência com cobertura trabalho policial cobrança ao ...

Identification of potential predictive factors for keratoconus progression after treatment by accelerated Cross-linking (A-CXL) Evaluation clinical and topographic outcomes two years following cross-linking progressive including: best spectacle corrected visual acuity (BSCVA), thinnest pachymetry, maximum keratometry (Kmax), cylinder. Prospective, interventional, monocentric study. Metz-Thionvi...

1. A. Rochon-Duvigneaud, Les Yeux et la Vision des Vertebres (Masson, Paris, 1943). 2. S. L. Polyak, The Vertebrate Visual System (Univ. of Chicago Press, Chicago, 1957). 3. G. L. Walls, The Vertebrate Eye (Cranbrook Institute of Science, Bloomfield Hills, Mich., 1942). 4. R. Shlaer, Science 176, 922 (1972). 5. Gratings of different manufacture, (i) engineruled gratings (Ronchi rulings) and (ii...