The specific nature of difficulties in visual perception resulting from childhood brain tumors

2019 ◽  
Vol LXXX (4) ◽  
pp. 268-277
Author(s):  
Małgorzata Walkiewicz-Krutak ◽  
Małgorzata Paplińska
Keyword(s):  
Visual Acuity ◽  
Brain Tumor ◽  
Visual Perception ◽  
Brain Tumors ◽  
Visual Fields ◽  
Specific Nature ◽  
Vision Assessment ◽  
Visual Problems ◽  
Functional Vision ◽  
Functional Vision Assessment

The analyses presented in the article aim to investigate the specific nature of visual problems in a young child whose visual disability results from a brain tumor. The article presents a case study on difficulties in using vision and visual perception development in an almost 4-year-old boy with a brain tumor. It refers to knowledge concerning visual problems in children with brain tumors that is available in source materials and presents a detailed description of difficulties in visual reception and perception in a boy whose visual problems result from cancer. This description was made based on the results of a functional vision assessment. Decreased visual acuity, reduced visual fields, abnormalities in the development of oculomotor functions, lack of spatial vision, and difficulties in visual perception were found in the boy. Both the analysis of medical literature presented in the paper and the results of the boy's functional vision assessment suggest possible development of visual functioning disorders secondary to a brain tumor, such as decreased visual acuity and reduced visual fields, which determine visual abilities and have an adverse impact on the development of visual perception in early life. Based on the analysis of an individual situation, the description of difficulties in visual functioning suggests there is a risk of similar impairments in children with brain tumors.

scholarly journals FLORA™: Phase I development of a functional vision assessment for prosthetic vision users

2015 ◽  
Vol 98 (4) ◽  
pp. 342-347 ◽  
Author(s):  
Duane R Geruschat ◽  
Marshall Flax ◽  
Nilima Tanna ◽  
Michelle Bianchi ◽  
Andy Fisher ◽  
...  
Keyword(s):  
Phase I ◽  
Vision Assessment ◽  
Functional Vision ◽  
Functional Vision Assessment

scholarly journals Presumed congenital infection by Zika virus: findings on psychomotor development - a case report

2016 ◽  
Vol 16 (suppl 1) ◽  
pp. 39-44 ◽  
Author(s):  
Ana Carla Gomes Botelho ◽  
Luana Valeriano Neri ◽  
Marina Queiroz Ferreira da Silva ◽  
Thaisa Teixeira de Lima ◽  
Karla Gonçalves dos Santos ◽  
...  
Keyword(s):  
Zika Virus ◽  
Motor Performance ◽  
Muscle Tone ◽  
Congenital Infection ◽  
Lower Limbs ◽  
Psychomotor Development ◽  
Vision Assessment ◽  
Motion Range ◽  
Functional Vision ◽  
Functional Vision Assessment

Abstract Introduction: the identification of Zika virus (ZikV) in the amniotic fluid, in the placenta and in newborns' brains suggests a neurotropism of this agent in the brain development, resulting in neuro-psycho-motor alterations. Thus, this present study reports the assessment of children diagnosed by a congenital infection, presumably by ZikV, followed-up at the Rehabilitation Center Prof. Ruy Neves Baptist at the Instituto de Medicina Integral Prof. Fernando Figueira (IMIP). Description: as proposed by the Ministry of Health, the following instruments were used to evaluate the neuro-motor functions of four children with microcephaly aged between three and four months: The Test of Infant Motor Performance (TIMP); the functional vision assessment; the manual function scale development; and the clinical evaluation protocol on pediatric dysphagia (PAD-PED). Discussion: the children evaluated presented atypical motor performance, muscle tone and spontaneous motricity which encompass the symmetry and the motion range of the upper and lower limbs proven to be altered. The functional vision showed alterations which can cause limitations in the performance of functional activities and the learning process. Regarding to the speech articulator's functions observed that the maturation and coordination of sucking, swallowing and breathing did not yet encounter the appropriate age maturity level.

scholarly journals Vision improvement with low vision aids and functional vision assessment among children studying in schools for the blind in North-East India

2021 ◽  
Vol 6 (0) ◽  
pp. 72-75
Author(s):  
Daamaris Magdalene ◽  
Harsha Bhattacharjee ◽  
Pritam Dutta ◽  
Amzad Ali ◽  
Shyam Sundar ◽  
...  
Keyword(s):  
Low Vision ◽  
Low Vision Aids ◽  
North East India ◽  
North East ◽  
Vision Assessment ◽  
Functional Vision ◽  
Functional Vision Assessment

Rating Visual System Impairment using the Sixth Edition: Technical Aspects

2011 ◽  
Vol 16 (6) ◽  
pp. 7-11
Author(s):  
Bernard R. Blais
Keyword(s):  
Visual Acuity ◽  
Visual Field ◽  
Visual System ◽  
Visual Fields ◽  
Visual Field Loss ◽  
Test Procedures ◽  
Reasonable Estimate ◽  
Sixth Edition ◽  
Functional Vision ◽  
Vision Defects

Abstract Use of The Visual System section of the AMA Guides to the Evaluation of Permanent Impairment (AMA Guides), Sixth Edition, requires knowledge and skills in ophthalmology and assessing impairment. Visual acuity usually is measured using symbols (letters, numbers, pictures, or other symbols) presented in a letter chart format. The Visual Acuity Scale (VAS) is a linear scale with fixed increments and provides a reasonable estimate of acuity-related visual abilities; the associated impairment rating is a reasonable estimate of acuity-related performance loss. This article shows how to perform visual acuity calculations and how to assess impairment of visual fields, including visual field test procedures and calculations. Additional factors can lead to a loss of functional vision and can limit the individual's ability to perform activities of daily living and include contrast sensitivity, glare sensitivity, color vision defects, and binocularity, stereopsis, suppression, and diplopia. If functional vision is affected and is not accounted for by visual acuity or visual field loss, the impairment rating of the visual system can be adjusted but should be limited to an increase of the impairment rating of the visual system by, at most, 15 points (ie, less severe than the total loss of one eye). The ability to rate visual impairment requires significant knowledge and education, and therefore a physician trained in ophthalmology should perform the visual examination and visual system impairment rating.

COMPREHENSIVE FUNCTIONAL VISION ASSESSMENT OF PATIENTS WITH NORTH CAROLINA MACULAR DYSTROPHY (MCDR1)

Retina ◽  
2005 ◽  
Vol 25 (4) ◽  
pp. 489-497 ◽  
Author(s):  
JANET P. SZLYK ◽  
JENNIFER PALIGA ◽  
WILLIAM SEIPLE ◽  
MAURICE F. RABB
Keyword(s):  
North Carolina ◽  
Macular Dystrophy ◽  
Vision Assessment ◽  
Functional Vision ◽  
Functional Vision Assessment

scholarly journals Development of Gazi Functional Vision Assessment Instrument

2021 ◽  
Vol 10 (4) ◽  
pp. 1973-1987
Author(s):  
Pinar Safak ◽  
Salih Cakmak ◽  
Tamer Karakoc ◽  
Fatma Pinar
Keyword(s):  
Assessment Tool ◽  
Low Vision ◽  
Generalizability Theory ◽  
Simple Random Sampling ◽  
Assessment Instrument ◽  
National Education ◽  
Vision Assessment ◽  
Functional Vision ◽  
And Performance ◽  
Functional Vision Assessment

<p style="text-align: justify;">This study aimed to develop a valid and reliable instrument that measures the functional vision of students with low vision. Thus, an assessment tool and performance activities were developed for three vision skill groups (near vision skills, distance vision skills, and visual field) that include functional vision skills. The universe was 1485 students studying in various primary and middle schools (from 2nd to 7th grades) affiliated to the Ministry of National Education, and simple random sampling was used to select 310 students. The data were collected using the Gazi Functional Vision Assessment Instrument developed by the researchers. Many-facet Rasch model and generalizability theory were used for the rater reliability of the measurements obtained from the instrument, while discriminant analysis was used for the validity of the measurements. The analysis showed that the measurements were reliable, and the inferences based on these measurements were valid. Thus, this instrument can be used to identify and assess the functional vision status of students with low vision.</p>

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