View clinical trials related to Vision, Low.
Filter by:Active eye movement control training, an old and still most prevalent intervention in low vision rehabilitation (LVR) was never used in nystagmus clinically. Biofeedback training (BT) is the latest and newest technique for oculomotor control training in cases with low vision when using available modules in the new microperimetry instruments. Laboratory studies in the literature highlighted positive benefits from using BT in nystagmus cases. The purpose of this study is to assess systematically the impact of BT in a series of cases with Infantile Idiopathic Nystagmus (IIN) and formulate guidelines for further use of this intervention in nystagmus cases in general.
The primary aim of this study is to determine whether low-vision occupational therapy improves quality of life in Parkinson's Disease (PD) patients. Low-vision occupational therapy has not been previously studied in PD patients, and we suspect that this is a beneficial treatment option for PD patients as vision impairment is common in the PD patient population. Our primary objective will assess whether quality of life was improved following a low-vision occupational therapy session.
The purpose of this study is to evaluate the efficacy and safety of brolucizumab in treatment of patients with visual impairment due to diabetic macular edema (DME).
This study aims to examine the effectiveness of an intensive five day falls prevention training programme with a home evaluation and a home exercise programme, compared with a home evaluation and exercise programme alone for reducing incidence of falls and fear of falling, and improving confidence in functional ability and objective balance.
The aim of the study is to assess accurancy of OCT angiography as a pronostic marker for patients undergoing neurosurgery for compressiver macroadenoma as compared with visual acuity, visual field and OCT.
The successful application of magnification devices for reading and daily tasks is predicated on their correct use by individuals with low vision (LV). Barriers related to transportation, geography, and/or co-morbidities often limit LV patients' ability to attend several in-office training sessions as part of low vision rehabilitation (LVR) to optimize visual function with magnification devices. A promising solution is real-time videoconferencing to provide telerehabilitation, involving remotely delivered LVR services by a LVR provider in office to a patient at home. Telerehabilitation for LV appears to be feasible and acceptable by both patients and LVR providers, yet there are no published outcomes on the potential to improve patients' visual functioning. Another key issue in LVR is the need for an effective system to continually assess how patients are functioning at home. Ideally this would involve a non-invasive, efficient method to assess when magnifier device abandonment occurs, so that a timely telerehabilitation session can be initiated. Small Bluetooth low energy beacon sensors attached to the handles of magnifiers can collect real-time data regarding minute-to-minute environmental changes, which might serve as an indicator of magnifier use by LV patients at home. Specifically, the investigators propose to assess the potential for telerehabilitation to enhance visual function by providing remotely-delivered LVR training to use magnification devices. Following one in-office training session for new magnification device(s), the investigators aim to determine if there is additional gain in visual functioning by randomizing subjects to telerehabilitation or additional in-office LVR (active control). Participants will be assessed before and after two consecutive periods: (1) one month after a single LVR training session, followed by (2) up to three LVR sessions over a three month period either via telerehabilitation in the participants' homes or LVR in-office. The investigators will determine which patient characteristics and/or magnification devices are most likely to benefit from telerehabilitation. The investigators will also determine whether data from Bluetooth beacon sensors are valid indicators of hand-held magnifier device usage by LV patients at home. The study investigators will deploy Estimote Sticker beacon sensors to subjects randomized to telerehabilitation or additional in-office LVR during the same study period. It is anticipated that beacon sensors will measure significantly increased temperature and/or motion when placed on the part of the magnification device held by LV patients while performing daily activities. Beacon sensor data will determine if it is feasible to assess when magnification devices are used, and if the frequency of magnifier use changes following telerehabilitation or in-office LVR. This work will evaluate and refine the procedures for implementing these technologies for LVR, in order to develop future randomized controlled trial protocols. The investigators envision that telerehabilitation and beacon sensors could improve LV patient outcomes by providing follow-up LVR services in a more efficient and timely manner.
The purpose of this study is to evaluate the efficacy and safety of brolucizumab in treatment of Chinese patients with visual impairment due to Diabetic Macular Edema.
The objective of the present study is to develop a therapeutic, adaptive, and enjoyable game that will be used by children with CVI between the mental age of 3 and 12 years. Such a game will be easy to use and implement by the children, their parents, and therapists.
Data from 15 healthy subjects will be recorded in two testing sessions spread on two days, using three lens designs (A, B and C). Before the measuring days, each subject will undergo an extra fitting session of a large-diameter scleral contact lens on the dominant eye, assessed by an experienced practitioner. The fitting data will be used to custom-make the three lens designs for each subject, thus ensuring their comfort and safety during the days of the experiments. During the experiment days baseline measurements will be obtained before and after pupil dilation and contact lens wear. During the first testing session data from the lens design A (reference lens without artificial iris) will be recorded. During the second testing session data from the lens designs B and C (lenses with artificial iris with different transmittances) will be recorded. In each testing session, contrast sensitivity and visual acuity will be evaluated and non-invasive imaging measurements will be undertaken (optical coherence tomography and slit lamp). A specific questionnaire will be given to the subject to assess comfort, light sensitivity, the horizontal visual angle and overall experience of the scleral lens and in combination with a pair of sunglasses category 3-4.
This study aims to compare the efficacy of an in-home telehealth-based intervention to standard care for children with cortical visual impairment and their caregivers and to assess the feasibility and acceptability of an in-home telehealth-based intervention approach for children with cortical visual impairment and their caregivers. This pilot study will utilize a randomized two group crossover design with assessment at 4 time periods. The assessments will occur at remote locations.