scholarly journals Choroba Stargardta funkcjonalnie – o sposobach radzenia sobie z niepełnosprawnością wzroku w stopniu znacznym

2021 ◽  
Author(s):  
Magdalena Kokot
Keyword(s):  
Visual Acuity ◽  
Assistive Technologies ◽  
Visual Disability ◽  
Stargardt's Disease ◽  
Adolescents And Adults ◽  
Disease Experience ◽  
Depth Vision ◽  
Legal Blindness ◽  
Visual Disturbances ◽  
Stargardt’S Disease

Visual disability affects about 2 million Poles. This group includes people who have been diagnosed with Stargardt’s disease. This disease occurs in the general population with a frequency of one in 10,000. It leads to legal blindness with visual acuity lower than 5%. Visual disturbances in this disease may occur in children, i.e. 7–12 years of age, as well as in adolescents and adults. People suffering from this disease experience a significant reduction in visual acuity, difficulty in recognizing colors, impaired depth vision, difficulties with accommodation, impaired central vision and often severe photophobia. The aim of the research was to collect information about the assistive technologies used by people with Stargardt’s disease and to identify their ability to move independently despite a significant reduction in visual acuity. The research results show that most of the 102 surveyed people use various types of assistive technology and experience significant visual impairment. At the same time, a significant part of this group declares that despite the inability to read the black print text, they can still move quite freely.

Foveal sparing in patients with Japanese Stargardt’s disease and good visual acuity

2012 ◽  
Vol 56 (6) ◽  
pp. 584-588 ◽  
Author(s):  
Takeshi Nakao ◽  
Motokazu Tsujikawa ◽  
Miki Sawa ◽  
Fumi Gomi ◽  
Kohji Nishida
Keyword(s):  
Visual Acuity ◽  
Good Visual Acuity ◽  
Stargardt's Disease ◽  
Foveal Sparing ◽  
Stargardt’S Disease

Clinical and Genetic Characteristics of Late-onset Stargardt's Disease

Ophthalmology ◽  
2012 ◽  
Vol 119 (6) ◽  
pp. 1199-1210 ◽  
Author(s):  
Sarah C. Westeneng-van Haaften ◽  
Camiel J.F. Boon ◽  
Frans P.M. Cremers ◽  
Lies H. Hoefsloot ◽  
Anneke I. den Hollander ◽  
...  
Keyword(s):  
Late Onset ◽  
Genetic Characteristics ◽  
Stargardt's Disease ◽  
Stargardt’S Disease

Stargardt's disease

1992 ◽  
Vol 79 (1) ◽  
pp. 79-89 ◽  
Author(s):  
Maija M�ntyj�rvi ◽  
Kaija Tuppurainen
Keyword(s):  
Stargardt's Disease ◽  
Stargardt’S Disease

scholarly journals Visual Quality Assessment of Posterior Capsule Opacification Using Optical Quality Analysis System (OQAS)

2017 ◽  
Vol 2017 ◽  
pp. 1-4 ◽  
Author(s):  
Hui Zhang ◽  
Jing Wang
Keyword(s):  
Visual Acuity ◽  
Quality Assessment ◽  
Case Series ◽  
Optical Quality ◽  
Posterior Capsule Opacification ◽  
Assessment System ◽  
Quality Analysis ◽  
Posterior Capsule ◽  
Case Series Study ◽  
Visual Disturbances

Objective. To evaluate intraocular scattering in eyes with posterior capsule opacification by means of an objective scatter index (OSI) obtained from double-pass images of optical quality assessment system (OQAS TM II) and to determine the indication for laser capsulotomy when patients report visual disturbances without decreased visual acuity. Methods. In this prospective, observational, and nonconsecutive case series study, a total of 32 eyes of 29 patients are diagnosed with posterior capsule opacification after age-associated cataract were analyzed. Patient examination included age, the period after cataract surgery, logMAR best corrected visual acuity (BCVA), and OSI. Results. We found a significant decrease in the BCVA and increase in the OSI with the development of posterior capsule opacification. The decrease of BCVA was statistically correlated with the increase of OSI (r=0.812, P<0.01). In patients who reported visual disturbances without decreased visual acuity, OSI decreased to <1.3 and subjective symptoms were resolved in all cases although there was no significant improvement in visual acuity after laser capsulotomy. Conclusions. The results of our study showed that OSI is also a useful parameter for objectively evaluating posterior capsule opacification. OSI may help predict laser capsulotomy in patients who report visual disturbances without decreased visual acuity.

Consultation with the Specialist

1992 ◽  
Vol 13 (4) ◽  
pp. 127-129
Author(s):  
Betty R. Klein ◽  
Marvin L. Sears
Keyword(s):  
Visual Acuity ◽  
Systematic Approach ◽  
Eye Injuries ◽  
Visual Disability ◽  
Protective Measures ◽  
Eye Trauma ◽  
Eye Disorders ◽  
Intravenous Antibiotics ◽  
Exogenous Endophthalmitis ◽  
Preverbal Children

Optimal management of eye trauma requires a careful history, a controlled examination, protective measures to limit the damage and prevent infection, and swift triage to an ophthalmologist. Personnel in the emergency department or office can accomplish these goals and save the patient permanent visual disability. How Does One Evaluate Trauma to the Eye? A systematic approach emphasizing history, visual acuity, and external examination are essential in the evaluation of eye injuries. The history should be detailed and should note the mechanism of injury, the events following the injury, preexisting eye disorders, systemic disorders, drug allergies, contraindications to anesthesia, when the patient last ate, and prior tetanus immunization. If ocular perforation, laceration, or intraocular foreign body is suspected, treat the patient as if preoperatively, allowing nothing by mouth, and consider intravenous antibiotics to protect against exogenous endophthalmitis. Visual acuity examination must be performed in every case. Measure the visual acuity in each eye separately with corrective lenses in place. A near card may be used for examination at bedside. Picture cards and charts are available for measuring acuity in children age 3 to 6 years. Preverbal children can be tested grossly by allowing them to reach for a small toy with one or the other eye covered.

Indoor Navigation Aid Systems for the Blind and Visually Impaired Based on Depth Sensors

2021 ◽  
pp. 187-223
Author(s):  
Fernando Merchan ◽  
Martin Poveda ◽  
Danilo E. Cáceres-Hernández ◽  
Javier E. Sanchez-Galan
Keyword(s):  
Deep Learning ◽  
Visually Impaired ◽  
Indoor Navigation ◽  
Assistive Technologies ◽  
Microsoft Kinect ◽  
Depth Sensors ◽  
Blind And Visually Impaired ◽  
Recent Developments ◽  
Depth Vision

This chapter focuses on the contributions made in the development of assistive technologies for the navigation of blind and visually impaired (BVI) individuals. A special interest is placed on vision-based systems that make use of image (RGB) and depth (D) information to assist their indoor navigation. Many commercial RGB-D cameras exist on the market, but for many years the Microsoft Kinect has been used as a tool for research in this field. Therefore, first-hand experience and advances on the use of Kinect for the development of an indoor navigation aid system for BVI individuals is presented. Limitations that can be encountered in building such a system are addressed at length. Finally, an overview of novel avenues of research in indoor navigation for BVI individuals such as integration of computer vision algorithms, deep learning for the classification of objects, and recent developments with stereo depth vision are discussed.

Teachers’ and School Administrators’ Guide

2010 ◽  
Author(s):  
Jessica J. Otis ◽  
Jill Ann Nerby
Keyword(s):  
Visual Acuity ◽  
Low Vision ◽  
School Administrators ◽  
Teaching Experience ◽  
Careful Consideration ◽  
Supportive Services ◽  
Visual Disability ◽  
Regular Class ◽  
Lighting Conditions ◽  
Special Services

A child with aniridia is being placed in your classroom, and you may be wondering whether their needs are different from those of your other students. This information has been written to answer any questions or concerns about this new teaching experience. When a child with a visual disability is enrolled in a regular class, careful consideration is given to assess whether he or she can compete both academically and socially. Although he or she may need to cope with visual and emotional stresses usually not encountered by non-disabled children, he or she will soon become a fully participating member of the class. In order to ensure that the child with aniridia has the opportunity to reach their full academic potential, the child and you will hopefully receive the supportive services of a special teacher of the visually impaired (VI teacher) to discuss classroom situations. A child with aniridia is generally considered eligible for special services of a resource and/or VI teacher if their measured visual acuity is 20/70 or less in the better eye with corrective lenses (in other words, if what he or she can see at twenty feet is no more than what a person with normal vision sees at seventy feet). Children who have a measured visual acuity of 20/200 or less in the better/corrected eye or who have a visual field of no greater than twenty degrees are classified as legally blind. Aniridia is a partial or complete absence of the iris, and it may be associated with other ocular defects such as macular and optic nerve hypoplasia, cataract, corneal surface abnormalities that lead to decreased vision, and nystagmus. The vision may fluctuate, depending on lighting conditions and glare. Glaucoma is a secondary problem causing additional visual loss over time. Because of poor visual acuity and nystagmus, low-vision aids are very helpful. Lifelong regular follow up care is necessary for early detection of any new problem so that timely treatment is given.

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