Improved mobility performance with an artificial vision therapy system using a thermal sensor

2020 ◽  
Vol 17 (4) ◽  
pp. 045011
Author(s):  
Yingchen He ◽  
Susan Y Sun ◽  
Arup Roy ◽  
Avi Caspi ◽  
Sandra R Montezuma
Keyword(s):  
Artificial Vision ◽  
Thermal Sensor ◽  
Mobility Performance ◽  
Vision Therapy

scholarly journals Improved localisation and discrimination of heat emitting household objects with the artificial vision therapy system by integration with thermal sensor

2020 ◽  
Vol 104 (12) ◽  
pp. 1730-1734 ◽  
Author(s):  
Sandra R Montezuma ◽  
Susan Y Sun ◽  
Arup Roy ◽  
Avi Caspi ◽  
Jessy D Dorn ◽  
...  
Keyword(s):  
Visible Light ◽  
Daily Life ◽  
Retinal Prosthesis ◽  
Hot Water ◽  
Artificial Vision ◽  
Thermal Sensor ◽  
Thermal Camera ◽  
Argus Ii ◽  
Vision Therapy ◽  
Heated Object

AimTo demonstrate the potential clinically meaningful benefits of a thermal camera integrated with the Argus II, an artificial vision therapy system, for assisting Argus II users in localising and discriminating heat-emitting objects.MethodsSeven blind patients implanted with Argus II retinal prosthesis participated in the study. Two tasks were investigated: (1) localising up to three heat-emitting objects by indicating the location of the objects and (2) discriminating a specific heated object out of three presented on a table. Heat-emitting objects placed on a table included a toaster, a flat iron, an electric kettle, a heating pad and a mug of hot water. Subjects completed the two tasks using the unmodified Argus II system with a visible-light camera and the thermal camera-integrated Argus II.ResultsSubjects more accurately localised heated objects displayed on a table (p=0.011) and discriminated a specific type of object (p=0.005) presented with the thermal camera integrated with the Argus II versus the unmodified Argus II camera.ConclusionsThe thermal camera integrated with the artificial vision therapy system helps users to locate and differentiate heat-emitting objects more precisely than a visible light sensor. The integration of the thermal camera with the Argus II may have significant benefits in patients’ daily life.

Coexistent Osteoarthritis and Parkinson’s Disease: Data from the Parkinson’s Foundation Outcomes Project

2020 ◽  
Vol 10 (4) ◽  
pp. 1601-1610
Author(s):  
Jaimie A. Roper ◽  
Abigail C. Schmitt ◽  
Hanzhi Gao ◽  
Ying He ◽  
Samuel Wu ◽  
...  
Keyword(s):  
Parkinson’S Disease ◽  
Parkinson's Disease ◽  
Study Data ◽  
Functional Mobility ◽  
Quality Improvement Initiative ◽  
Timed Up And Go ◽  
Mobility Performance ◽  
Risk Of Mortality ◽  
The Impact

Background: The impact of concurrent osteoarthritis on mobility and mortality in individuals with Parkinson’s disease is unknown. Objective: We sought to understand to what extent osteoarthritis severity influenced mobility across time and how osteoarthritis severity could affect mortality in individuals with Parkinson’s disease. Methods: In a retrospective observational longitudinal study, data from the Parkinson’s Foundation Quality Improvement Initiative was analyzed. We included 2,274 persons with Parkinson’s disease. The main outcomes were the effects of osteoarthritis severity on functional mobility and mortality. The Timed Up and Go test measured functional mobility performance. Mortality was measured as the osteoarthritis group effect on survival time in years. Results: More individuals with symptomatic osteoarthritis reported at least monthly falls compared to the other groups (14.5% vs. 7.2% without reported osteoarthritis and 8.4% asymptomatic/minimal osteoarthritis, p = 0.0004). The symptomatic group contained significantly more individuals with low functional mobility (TUG≥12 seconds) at baseline (51.5% vs. 29.0% and 36.1%, p < 0.0001). The odds of having low functional mobility for individuals with symptomatic osteoarthritis was 1.63 times compared to those without reported osteoarthritis (p < 0.0004); and was 1.57 times compared to those with asymptomatic/minimal osteoarthritis (p = 0.0026) after controlling pre-specified covariates. Similar results hold at the time of follow-up while changes in functional mobility were not significant across groups, suggesting that osteoarthritis likely does not accelerate the changes in functional mobility across time. Coexisting symptomatic osteoarthritis and Parkinson’s disease seem to additively increase the risk of mortality (p = 0.007). Conclusion: Our results highlight the impact and potential additive effects of symptomatic osteoarthritis in persons with Parkinson’s disease.

Pulfrich Effect for Vision Therapy

2017 ◽  
Vol 1 (1) ◽  
Author(s):  
Pellumb  Kllogjeri
Keyword(s):  
Pulfrich Effect ◽  
Vision Therapy

Heat Flow Measurement by Force and Thermal Sensor Stick with Nerve-net LSI Chip

2019 ◽  
Vol 139 (8) ◽  
pp. 258-264
Author(s):  
Hayato Tsuchiya ◽  
Yusuke Suganuma ◽  
Masanori Muroyama ◽  
Takahiro Nakayama ◽  
Yutaka Nonomura
Keyword(s):  
Heat Flow ◽  
Flow Measurement ◽  
Thermal Sensor ◽  
Nerve Net

A New Scanning Thermal Microprobe

1997 ◽  
Vol 503 ◽  
Author(s):  
Yongxia Zhang ◽  
Yanwei Zhang ◽  
Juliana Blaser ◽  
T. S. Sriiram ◽  
R. B. Marcus
Keyword(s):  
Thin Film ◽  
High Resolution ◽  
Thermal Response ◽  
Temperature Sensing ◽  
Thermal Sensor ◽  
Atomic Force ◽  
Thin Film Thermocouple ◽  
Processing Steps ◽  
Thermocouple Junction

ABSTRACTA thermal microprobe has been designed and built for high resolution temperature sensing. The thermal sensor is a thin-film thermocouple junction at the tip of an Atomic Force Microprobe (AFM) silicon probe needle. Only wafer-stage processing steps are used for the fabrication. The thermal response over the range 25–s 4.5–rovolts per degree C and is linear.

Thermal sensor calibration using non-integer system identification

2008 ◽  
Vol 42 (6-8) ◽  
pp. 953-964
Author(s):  
Stefan Löhle ◽  
Jean-Luc Battaglia ◽  
Jean-Christophe Batsale
Keyword(s):  
System Identification ◽  
Sensor Calibration ◽  
Thermal Sensor

Persistent Diplopia in Visually Mature Patients. Is it Intractable or something else? A Review and Case Series

2017 ◽  
pp. 90-108
Keyword(s):  
Botulinum Toxin ◽  
Extraocular Muscle ◽  
Botulinum Toxin Injection ◽  
Case Series ◽  
Sensory Adaptation ◽  
Single Vision ◽  
Injection Treatment ◽  
Vision Therapy ◽  
Extraocular Muscle Surgery

Diplopia is described as being intractable when there is inability to both fuse the two images and suppress the second image. Intractable diplopia persists despite achieving ocular alignment using either prisms, lenses,vision therapy,extraocular muscle surgery, or botulinum toxin injection. Treatment usually resorts to occluding or fogging the patient’s nondominant eye. Often times, however, adults having other causative mechanisms for supposedly persistent diplopia are able to achieve comfortable single vision with treatment that either establishes fusion or reactivates a preexisting sensory adaptation. This case series reviews these other causes of diplopia.

Optometric Vision Therapy for Visual Deficits and Dysfunctions: A Suggested Model for Evidence-Based Practice

2015 ◽  
pp. 290-339
Keyword(s):  
Speech Therapy ◽  
Evidence Based Practice ◽  
Behavioural Therapy ◽  
Evidence Based ◽  
Neural Pathways ◽  
Central Processing ◽  
Visual Deficits ◽  
Visual Spatial ◽  
Functional Vision ◽  
Vision Therapy

Evidence from neural science supports a neuroplasticity thesis where the development and rehabilitation of functional neural pathways can be facilitated by management of biological factors, central processing and environmental interactions. Healthy eyes and clear sight are not themselves sufficient for efficient functional vision. How a person uses vision determines their operational skill. Efficient functional vision requires dynamic interactions between and within visual receptive and reflexive biology, acquired neural networks that serve basic visual inspection processes and visuo-cognitive operational patterns driving top down visual – spatial analysis and problem solving. This presentation is a review and discussion of evidence-based practice (EBP) principles that we utilise in clinical neuro-developmental and rehabilitative optometric vision therapy (OVT) for selected visual deficits and dysfunctions. OVT services, like other collaborative therapies such as cognitive behavioural therapy, speech therapy and occupational therapy, must progressively adapt to new knowledge and advancing technology through EBP. Clinical services directed at treatable neuro-developmental and acquired dynamic functional vision problems require the application of an emerging set of principles resulting from systematic logic and EBP related to the art and science of case analysis, practice management and OVT delivery.

Use of Remote Optometric Vision Therapy in a Primary Eye Care Practice

2020 ◽  
pp. 99-106
Keyword(s):  
Patient Selection ◽  
Parental Support ◽  
Care Practice ◽  
Eye Care ◽  
Technical Requirements ◽  
Online Platforms ◽  
Case Selection ◽  
Home Based ◽  
Vision Therapy ◽  
Office Procedures

Many optometrists supplement office-based vision therapy with home-based vision therapy procedures. Others prescribe primarily home-based vision therapy activities with in-office instruction. With recent development of telehealth online platforms, it is possible to enhance home-based vision therapy with one-on-one doctor-guided and vision therapist-guided remote optometric vision therapy (ROVT). This may increase access for times when the patient is not able to present to the office. Procedures for implementing ROVT are discussed including patient selection, case management, and technical requirements. 35 patients received ROVT, with the vast majority responding positively. Three cases of ROVT are presented. While there are significant limitations to ROVT, this experience shows that it is possible to conduct ROVT when there is need. We found that case selection and parental support at home are important factors for success.

Vision Therapy’s Role in Basic Intermittent Exotropia: A Case Report

2020 ◽  
pp. 64-73
Keyword(s):  
Treatment Option ◽  
Intermittent Exotropia ◽  
Effective Treatment Option ◽  
Control Scale ◽  
Case Presentation ◽  
Therapy Program ◽  
Convergence Insufficiency ◽  
Hispanic Male ◽  
Vision Therapy ◽  
Accommodative Function

Introduction: Vision therapy has been shown to be a successful treatment option for basic intermittent exotropia as long as a complete workup is performed to assess prognosis and appropriate management. Case Presentation: A 9 year old hispanic male presented to the clinic for a comprehensive exam and was subsequently diagnosed with a basic type intermittent exotropia with a V-pattern deviation. After thorough evaluation of binocular skills and accommodative function with a binocular vision evaluation, he was referred for a vision therapy program to improve fusional ranges, accommodative function, and symptoms. This program consisted of 20 sessions and significantly improved his binocular skills. Discussion: Basic intermittent exotropia can be treated in various ways. Vision Therapy is a worthwhile option. Surgical correction and overminus treatment have also been effective treatments. Assessment should include the intermittent exotropia control scale and the convergence insufficiency symptom survey. Vision therapy treatments focus on diplopia awareness, antisuppression, and fusional vergence ranges. Conclusion: Though more research is necessary, vision therapy has been proven to be a very effective treatment option in basic intermittent exotropia.

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