The aim of this study was to investigate the visual quality of the 2 kinds of intraocular lens: Visian implantable collamer lens (ICL) V4 and Visian ICL V4c implantations for high myopia.Twenty cases (20 eyes) with high myopia who received Visian ICL V4 implantation and 18 cases (18 eyes) with high myopia who received Visian ICL V4c implantation in our hospital from April 1, 2014 to November 31...

Night vision goggles are becoming an increasingly important tool in military aviation. They provide superior visual capability over unaided night vision, but any reduction in goggle performance can have a serious effect on flight safety and operational effectiveness. This study shows that the use of a standard adjustment procedure in a night vision goggle (NVG) test lane, with a resolution char...

Purpose: To assess the primary visual disability in patients with cataract and to evaluate their preference regarding the visual outcome after surgery. Materials and Methods: 120 patients (66 males, mean age 76.3 years, mean best corrected visual acuity 5.2/10 binocularly) participated. Perception regarding the primary visual disability related to cataract and preference of visual outcome after...

O'BRIANT, C. R., and M. K. OHLBAUM. Visual acuity decrements associated with whole body ±Oz vibration stress. Aerospace Med. 41(1): 79-82. 1970. The fact that vibration has an adverse effect on visual acuity is well established but inadequately quantified. The operational acceleration environments of lo*v altitude terrain avoidance flight, the increasing use of helicopters, and the potential vi...

To understand how a human operator performs visual search in complex scenes, it is necessary to take into account top-down cognitive biases in addition to bottom-up visual saliency effects. We constructed a model to elucidate the relationship between saliency and cognitive effects in the domain of visual search for distant targets in photo-realistic images of cluttered scenes. In this domain, d...