Search results for "Pupil"

W poszukiwaniu definicji szczęścia - oblicza szczęścia w percepcji przedszkolaków

2016

This papers aims to present the opinions of 54 kindergarten pupils from Public Kindergarten in Chrząstowice in the Opolskie province regarding how they understand and interpret the concept of happiness. The pupils were asked a number of questions regarding happiness, being happy and/or unhappy, situations when they are either happy or unhappy. The research material was further subjected to a qualitative analysis.

SNAPSHOT SPECTRAL AND COLOR IMAGING USING A REGULAR DIGITAL CAMERA WITH A MONOCHROMATIC IMAGE SENSOR

2017

Spectral imaging (SI) refers to the acquisition of the three-dimensional (3D) spectral cube of spatial and spectral data of a source object at a limited number of wavelengths in a given wavelength range. Snapshot spectral imaging (SSI) refers to the instantaneous acquisition (in a single shot) of the spectral cube, a process suitable for fast changing objects. Known SSI devices exhibit large total track length (TTL), weight and production costs and relatively low optical throughput. We present a simple SSI camera based on a regular digital camera with (i) an added diffusing and dispersing phase-only static optical element at the entrance pupil (diffuser) and (ii) tailored compressed sensing…

Ocular performance evaluation

2019

Real and virtual three-dimensional (3D) imaging has found useful applications across different areas of health sciences and with the current rapidly progressive development stage we can expect that the use of 3D imaging soon will be a part of a daily visual load for medical personnel. To better understand the possible impact of prolonged work with 3D content on eye accommodative response and pupil size we compared two 3D imaging techniques - volumetric display that is real voxel-based system and anaglyph technique that is virtual pixel-based system. We have investigated accommodative lag and pupil responses in 38 emmetropic young adult after prolonged visual task with volumetric 3D display …

Tackling bullying: Victimized by peers as a pupil, an effective intervener as a teacher?

2009

Abstract The present study focuses on student teachers as a prospective special resource in the prevention of school bullying in the course of their future professional careers. Special attention is paid to the influence the respondents' own childhood experiences of bullying may have in this regard. To investigate this question, we assessed the respondents' estimations of the level of empathy they felt towards the victims of bullying, the degree of effort they made to prevent bullying, and their ability to identify it. Further, an attempt to assess the long-term consequences of bullying was made, using two different communicative indices: the willingness to communicate and self-perceived co…

Binocular, Accommodative and Oculomotor Alterations In Multiple Sclerosis: A Review

2020

Multiple sclerosis (MS) is an acquired demyelinating and inflammatory neurodegenerative disease affecting the central nervous system (CNS). Clinical and subclinical ocular disturbances occur in almost all patients with MS. The objective of this narrative review was to collect and summarize the available scientific information on oculomotor, accommodative and binocular alterations that have been reported in MS. A systematic search strategy with the following descriptors was carried out: multiple sclerosis, ocular motility disorders, internuclear ophthalmoplegia, nystagmus, vergences, fixation, pupil reflex, accommodation and stereopsis. According to the search, some oculomotor alterations w…

COOPERATION BETWEEN SPEECH AND LANGUGAGE THERAPIST AND FAMILY TO PROMOTE READING SKILLS IN FIRST GRADE PUPILS

2019

Reading skills are one of essential skills to acquire literacy and be successful in everyday life in school and after it. Literacy skills are complicated for pupils with speech and language disorders, it is responsibility not only of speech and language therapists, but also of family to help these children to become literate. Situation in Latvia is different in different educational institutions, but we have to try our best to involve parents/family to be a part of pupil’s everyday activities.The aim of the article is to state the necessity of cooperation and to explore what kind of cooperation is effective in acquiring reading skills in first grade pupils. Based on the scientific literatur…

Ionising radiation and lens opacities in interventional physicians: results of a German pilot study

2019

We assessed the feasibility of an epidemiological study on the risk of radiation-related lens opacities among interventional physicians in Germany. In a regional multi-centre pilot study associated with a European project, we tested the recruitment strategy, a European questionnaire on work history for the latter dosimetry calculation and the endpoint assessment. 263 interventional physicians and 129 non-exposed colleagues were invited. Questionnaires assessed eligibility criteria, risk factors for cataract, and work history relating to occupational exposure to ionising radiation, including details on type and amount of procedures performed, radiation sources, and use of protective equipmen…

Pupil-sparing oculomotor palsy as the only clinical sign of an internal carotid artery occlusion

1999

Interocular differences in visual quality due to ocular aberrations and scattering in a patient with post-traumatic anisocoria: A case report

2012

AbstractA 41-year-old patient with visual disturbances after an ocular trauma in right eye three years before was carefully analyzed and discussed. No corneal or intraocular sequelae were present. Only a significant anisocoria could be observed. Right eye (RE) achieved a best spectacle-corrected visual acuity (BSCVA) of 0.05 LogMAR with a refraction of +0.50 sphere and −1.25 cylinder. Left eye (LE) achieved a BSCVA of 0.0 LogMAR with a refraction of +0.75 sphere and −1.00 cylinder. In photopic conditions pupil diameter was 4.96mm for RE and 3.02mm for LE whereas in scotopic conditions, these values were 7.45mm and 6.71mm, respectively. More significant levels of higher-order corneal and ocu…

Impact of the pupil size – central optical zone diameter relationship on visual performance in aspheric multifocal contact lenses

2020

Abstract Purpose To determine the impact of different central optical zone diameters (COZDs), obtained from pupil size, on the visual performance of presbyopic subjects fitted with centre-distance simultaneous-image multifocal contact lenses (SIMCLs). Methods Thirty-two presbyopic volunteers, between 45–58 years of age, participated in this prospective, controlled, double-blind study. Subjects were fitted with 5 centre-distance SIMCLs of variable COZD, determined from the measurement of pupil size under photopic light conditions and corresponding to 60, 70, 80, 90 and 100 % of pupil diameter. Subjects visual performance was evaluated through the measurement of distance, intermediate and nea…