Vision is prime sense to have facile life and abnormalities of vision are very common in all populations with various pathologies different parts eye such as cornea, lens, vitreous retina. Amblyopia one condition which characterized by reversible loss affecting or both the eyes. Examination important rule out any organic defect eye. In Ayurveda, many visual differences coined under heading Timi...

In this paper we present an approach to defect detection in images based on machine learning algorithms. A qualitative model of defect has been devised based on human experience. A set of vision primitives measuring defect features has been deened. Objects in images candidate to be classiied as defects are submitted to automatic classiication, which is achieved with learning by examples algorit...

OBJECTIVE Stereoscopic vision display technology has been shown to be a useful tool in image-guided surgical interventions. However, the concept has not been applied to 3-dimensional echocardiography-guided cardiac procedures. We evaluated stereoscopic vision display as an aid for intracardiac navigation during 3-dimensional echocardiography-guided beating-heart surgery in a model of atrial sep...

Central or paracentral scotoma is an occasional manifestation of certain space-occupying intracranial lesions. The reason for the development of this defect is not yet clear. Traquair (1946) defines a scotoma as " an area of depressed vision within the field margin surrounded by an area of less depressed or normal vision." Either a depressed area or a channel of varying width may connect the sc...

NOTE: This Quick Reference Guide should be used in conjunction with the Optometric Clinical Practice Guideline on Care of the Patient with Low Vision (Reviewed 2001). It provides summary information and is not intended to stand alone in assisting the clinician in making patient care decisions. Visual impairment is a functional limitation of the eye(s) or visual system that can result in a visua...

Chi-square histogram distance is one of the distance measures that can be used to find dissimilarity between two histograms. Motivated by the fact that texture discrimination by human vision system is based on second-order statistics, we make use of histogram of gray-level co-occurrence matrix (GLCM) that is based on second-order statistics and propose a new machine vision algorithm for automat...