View clinical trials related to Visual Acuity.
Filter by:The aim of this study is to compare subfoveal choroidal thickness (SFCT) and the visual status before and after intravitreal injection of ranibizumab in diabetic macular edema (DME) with the use of 3D-OCT by enhanced depth spectral-domain imaging (EDI-OCT) with fixating other factors.
This is a single visit, randomized, double masked, bilateral, non-dispensing, 2×2 crossover study to assess visual acuity.
The aim of this research is to find the effect of forward head posture correction on visual acuity and fatigue in low level visually impaired university students. Randomized controlled trials at Cecos University of IT and Emerging Sciences would be done. The sample size would be 48. The subjects would be divided in two groups, 24 subjects Intervention group and 24 in control group. Study duration would be 6 months. Sampling technique applied would be a non-probability convenience sampling technique. Only 18-25 years low level visually impaired university students with forward head posture would be included. Tools used in the study would be asthenopia questionnaire, Snellen chart and CVA angle photogrammetry
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 will be a single-visit, multi-site, randomized, single-masked, bilateral, active-controlled, non-dispensing, 2X2 crossover study.
This will be a 4-visit, randomized, controlled, single-masked, bilateral wear, dispensing, 2-treatment, 2-sequence, 2-period crossover study.
patients with maculopathy reported in low vision clinic are tested for prismatic glasses for near vision. The pre and post visual acuity was recorded.
This is a 2-phase, single-site, non-dispensing, randomized, controlled, double-masked, 2x2 crossover study to objectively measure potential benefits of a new UV/HEV filter using psychophysical testing techniques.
This will be a split-plot design, randomized, parallel, double-masked feasibility study to evaluate the role of a test lens on contrast sensitivity with and without glare.
This is a subject-masked, randomized, bilateral, 2x2 crossover clinical investigation that will assess lens fit acceptance.