Active clinical trials for "Vision, Low"

the purpose of the study is to evaluate the software usability and patient's adherence from five vision rehabilitation centres. In addition, the effect and benefits of a customizable telerehabilitation program were tested.

The need for low vision services (LVS) will increase exponentially over the coming years due to the anticipated and exponential growth in the ageing population in Singapore and a rise in chronic non-communicable eye diseases. Finding the best evidenced-based management for chronic eye diseases contributing to low vision (LV) is therefore crucial. Improving patient responsibility is the key to managing LV effectively.1 This means achieving optimum self management (SM).2 However, there are currently no LV SM programs in Singapore and none has been evaluated using a randomized controlled trial (RCT) design, the gold standard methods to evaluate health interventions. The aims of this study are to assess the effectiveness of the 'Living Successfully with Low Vision (LSLV)' program in improving quality of life (QoL) in 160 elderly people with LV attending the Singapore National Eye Centre (SNEC) LV clinic. Of these, 80 will be randomly allocated to receive the LSLV 4-week SM program while the remaining 80 will receive the usual care. Comparisons will be made to determine the efficacy of the LSLV program. QoL, self-efficacy, emotional well being, and vision-specific distress will be assessed 2 weeks after training, and at six months and 12 months post intervention. This study will be the first evidenced-based RCT investigating the effectiveness of a novel vision-specific self-management strategy to improve QoL. It will also adopt a longitudinal design where the effectiveness of these interventions will be evaluated at 12 months-the first follow-up assessment of that duration at both national and international levels. Furthermore this will be the first study to characterize and profile the patients where the effect of the program did not demonstrate an improvement in both primary and secondary outcomes six months after its completion. The future clinical implications of this study include the potential to implement a successful model of LV rehabilitation in other tertiary centres around the country.

Age-related macular degeneration (AMD) is a condition affecting 20 to 25 million people worldwide. Symptoms of AMD includes difficulty in reading, recognizing faces and completing house work which may result in increased disability which in turn increase symptoms of depression and anxiety. Depression and anxiety could also be worsened by social isolation caused by AMD. Further, AMD causes high levels of emotional distress and reduced quality of life (QoL). Automatic Self Transcending Meditation (ASTM) - a standardized category of meditation - may help reduce stress, depression, anxiety, and may enhance QoL. Automatic Self Transcending Meditation (ASTM) is a class of meditation that helps quiet the mind and induces physiological and mental relaxation whilst the eyes are shut. It utilizes a specific sound value (mantra) to draw attention inward and permit the mind to experience a restful but alert state of consciousness. In the proposed research, the effects of ASTM on health related quality of Life (HRQoL), depression and anxiety in low-vision AMD patients will be studied. A single-center, single-blind longitudinal randomized controlled trial (RCT) will be conducted in London, ON. Patients with AMD (n = 140, 70 in each arm) will be randomized to ASTM plus treatment as usual (TAU) or TAU alone (control) arm. Data on routinely measured ophthalmic clinical variables, HRQoL, depression, and anxiety will be collected from both the arms. Statistical analysis will be conducted using STATA 15.0 to evaluate the effects of ASTM plus TAU compared to TAU alone on HRQoL, depression, and anxiety. Further, for each group - ASTM plus TAU and TAU alone - the investigators develop an association between HRQoL, depression, and anxiety with routinely measured clinical variables using mathematical models.

This pilot randomized controlled trial (RCT) will test the methodology for a full RCT of assistive technologies for children/young people with low vision/blindness. The investigators will recruit 40 students age 10-18 years in India and the UK, who will be randomised into two groups. Apple iPads will be the active intervention; the control arm will be the local standard low-vision aid care. Primary outcomes will be acceptance/usage and accessibility of the device and trial feasibility measures. Exploratory outcomes will be validated measures of vision-related quality of life for children/young people as well as validated measures of reading and educational outcomes. In addition, the investigators will carry out semistructured interviews with the participants and their teachers, and attempt to evaluate cost-effectiveness.

This pilot study aims to assess the interest to add an auditory pathway morphological analysis during the MRI exploration of visual pathway in visually impaired children.

Visual developmental abnormalities affect 10 to 15% of the population under 6 years of age and leads to amblyopia in 30% of cases if left untreated. Untreated amblyopia in adulthood has consequences on the quality of life of individuals but will also represent a cost to society due to the increased risk of visual impairment. The screening protocol for this study recommends that a screening examination for amblyopia and amblyogenic factors be routinely performed by an orthoptist in children between 3 and 4 year old. This examination should include, as a minimum, a standardised measurement of visual acuity, a cover test and a measurement of refraction by photoscreener. In the event of a positive screening, the child must then be referred to an ophthalmologist so as to complete an ophthalmological examination. The aim of this protocol is to propose screening tests usually performed with a high specificity, in order to avoid congestion of ophthalmological services (i.e. by avoiding excessive or unnecessary referral of children to the ophthalmologist) without losing sensitivity by combining several tests. The orthoptists' role in this screening protocol is to facilitate an extensive screening coverage of the population in this age group, as they are more easily accessed by the patients and more equitably spread in the community than ophthalmologists. Therefore, by initially screening and then referring less children to the ophthalmologist, the aim is to reduce waiting times in the access of ophthalmological services which could be detrimental in terms of treatment success rates for patients acutely needing care. Based on the referral of children between 3 and 4 years of age by the orthoptist to an ophthalmologist, the analysis of the data from the standard screening protocol used in our centre will enable us to validate it scientifically. The referral thresholds can thus be secondarily adjusted for each test if the initial objectives are not achieved (specificity > 90% and sensitivity > 87%). The aim of this study is also to observe a change in the patient flow by reducing the volume of consultations with the ophthalmologist currently required based on the present referral rate. The efficiency of the screening protocol by calculating the probable economic gain linked to the modification of the screening circuit will be secondarily studying in this protocol

Blind Adults that willing to participate in the study will be tested with well-established measuring techniques of Balance control using force plate in the movement and Rehabilitation Laboratory at Ben-Gurion University. An automated algorithm will be used to extract standardized stabilogram-diffusion parameters from each of the COP data sets collected during quiet standing. These parameters include diffusion coefficients, critical displacement, critical time and scaling exponents for both lateral and anterior-posterior sway directions (Collins & De Luca, 1993). the subjects will be tested in 3 task conditions (eyes blindfolded, eyes blindfolded holding stick, eyes blindfolded holding a dog). Participants will be required to stand on the platform 10 times for 30 s For each trial, they will be instructed to sway as little as possible.

The present research process is a prospective, non-interventional clinical study that will be conducted -under the auspices of the Democritus University of Thrace (DUTH)- in the pre-school students of the city of Alexandroupolis, Greece. The study aims to assess the visual acuity of the kindergarten students. The measurement of monocular best-spectacle corrected visual acuity will be performed using a web-based visual acuity chart

This clinical trials aims to evaluate Tests Performance on a New Digital Orthoptic Platform.

Youth and some adults have photoscreening refractions and hand-held auto refraction before cycloplegia refraction during new and follow up eye examinations. Vector math is applied to each refraction to determine how closely the hand-held "dry" devices match actual refraction.