Acquired disturbances of color vision are a highly varied group of defects with frequent departures from established patterns. They can progress from normal trichromatism to anomalous trichromatism on to a dichromatic stage and to monochromatism where most color vision is lost, or they may be relatively stable [1]. A significant “modern effort” to present such conditions was published for first...

Introduction: There are many genetic disorders that X-linked, one being the color blindness. Some individuals affected with may remain unaware till detected for a long time. very few reports about incidence of blindness among medical undergraduate students. Objectives: Ojective our study was to assess incidence, undergraduates at Gandaki Medical College, Pokhara. Methodology: We piloted an obse...

BACKGROUND Prominent visual symptoms can present in the visual variant of Alzheimer's disease (VVAD). Ophthalmologists have a significant role to play in the early diagnosis of VVAD. METHODS We retrospectively reviewed the files of ten consecutive patients diagnosed with VVAD. All patients had a full neuro-ophthalmologic examination, a formal neurological and neuro-psychological testing, and ...

Models of consumer learning and inventory behavior have both proven to be valuable for explaining consumer choice dynamics. In their pure form these models assume consumers solve complex dynamic programming (DP) problems to determine optimal choices. For this reason, these models are best viewed as “as if” approximations to consumer behavior. In this paper we present an estimation method, based...

Las personas con los defectos en la percepción del color cometen más errores, toman tiempo reaccionar y necesitan estar cerca de objetos color, comparación que ven colores manera normal, esta deficiencia se denomina discromatopsia o comúnmente denominada Daltonismo honor a John Dalton (1794). Objetivo: Determinar prevalencia pilotos aviadores su relación factores laborales aeronáuticos. Métodos...

Comparison of the oscillatory behavior of a gravitating infinite Nambu-Goto string and a test string is investigated using the general relativistic gauge invariant perturbation technique with two infinitesimal parameters on a flat spacetime background. Due to the existence of the pp-wave exact solution, we see that the conclusion that the dynamical degree of freedom of an infinite Nambu-Goto st...

Background: Many people are affected by color blindness but most of them remain undetected as they simply adapt to the environment to certain extent and some remain unaware of the disease. Objective: To find out the prevalence rate of color blindness in students of ages 6 years to 15 years, in various schools of Jalandhar. Methods: A prospective study was done on 3259 students to identify the p...

Color vision deficiency (CVD) is a common ocular disorder that hampers patients’ color distinction capabilities, causing difficulties in their daily life routine. Till date, CVD cure not developed, and treatment courses, such as gene therapy, are yet to be applied on humans. Hence, patients opt for wearable visual aids tinted glasses/contact lenses, which achieve the latter by filtering out pro...

purpose: to evaluate the effect of levodopa-carbidopa on improvement of visual acuity, color vision, and visual field in patients with nonarteritic anterior ischemic optic neuropathy (naion) with onset less than 6 wks. methods: in this double-blind randomized controlled trial, 13 patients were treated with levodopa-carbidopa and 12 patients were treated with placebo for 3 weeks. after 6 months,...