If you’re an older adult, it may seem as if just about everyone your age is having cataract surgery. Some degree of vision clouding caused by cataracts occurs in most people as they age, with many experiencing significant vision loss. In fact, cataract surgery is the most common surgical procedure performed on U.S. adults older than 65. The most common type of cataract surgery is an outpatient ...

An experiment was conducted to examine the hypothesis that the right hand system is superior in the processing of visual information. A manual aiming task utilizing four visual conditions was employed. In the full-vision (FV) condition subjects were afforded vision of both the hand and the target throughout the course of the movement. In the ambient-illumination-off (AO) condition, the room lig...

On October 25 and 26, 2007, at the University of Toronto, the Gairdner Foundation in partnership with Canadian Institutes of Health Research presented a two-day international symposium titled Minds That Matter. The symposium featured academic lectures by Gairdner Award winners past and present and by other leading biomedical scientists. These distinguished researchers share many characteristics...

PURPOSE We determined if the Impact of Vision Impairment (IVI) is a valid questionnaire to measure the vision-related quality of life (VRQoL) in keratoconus patients, and investigated if the VRQoL varied with disease severity in this sample. METHODS WE RECRUITED 160 CONSECUTIVE BILATERAL KERATOCONUS PATIENTS (MEAN AGE 23.3 YEARS, 63% MALE) FROM AN INDIAN TERTIARY EYE CARE CENTER. PARTICIPANTS...

The paper deals with adverse interactions between line stimuli in eccentric vision. Both contrast threshold and just noticeable difference of slant have been measured for a test line as a function of the distance from a number of surrounding lines. Test lines were either parallel or perpendicular to the surrounding lines. It turns out that the interference affects both contrast threshold and j....

⎯ With the rapid progression of e-learning curriculum, the various needs of content design considerations are increasing. However, little attention was paid to image perception issue related to content design. This study investigated the relationship of field-dependent/field-independent (FD/FI) cognitive style to the perception of color images with respect to colordepth and preference for displ...

This research is regarding the application of a vision algorithm to investigates various approaches for automated inspection in of gluing process using shape-based matching application in order to control the decision making concerning jobs and work pieces recognition that are to be made during system operation in real time. A new supervised defect detection approach to detect a class of defect...

Abstract A method for detecting paper’s surface defects is proposed, which based on mathematical morphology algorithm and computer vision technique. Firstly, the mean filtering wavelet denoising in image pre-processing are used to eliminate noise, analysis can achieve enhancement increase contrast between target area background. And then, an improved threshold Canny operator segment extract com...

Individuals with Color Vision Deficiency (CVD) are often unable to distinguish between colors that individuals without CVD can distinguish. Recoloring tools exist that modify the colors in an image so they are more easily distinguishable for those with CVD. These tools use models of color differentiation that rely on many assumptions about the environment and user. However, these assumptions ra...

There are individual differences in color vision. It is difficult for people with defective cones in the retina to recognize the difference of specific colors. We propose a system using a camera and a projecctor to present color information for color vision deficiency. When there are indistinguishable colors in real objects, the system converts the color to a distinguishable color for projectio...