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Found 137 clinical trials
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Environmental Localization Mapping and Guidance for Visual Prosthesis Users

This study is driven by the hypothesis that navigation for users of retinal prosthetics can be greatly improved by incorporating Spatial Localization and Mapping (SLAM) and object recognition technology conveying environmental information via a retinal prosthesis and auditory feedback. The investigators will study how effectively the SLAM technology enables the …

  • 0 views
  • 25 Jun, 2021
  • 2 locations
None
SmartHMD for Improved Mobility

The National Eye Institute estimated about 3 million people over age 40 in the US had low vision in 2010 and projects an increase to nearly 5 million in 2030 and 9 million in 2050. Current

AIDS
  • 11 views
  • 18 Jul, 2021
  • 1 location
None
OCT-angiography as a Pronostic Marker for Visual Impairment in Patients Undergoing Neurosurgery for Compressive Macroadenoma : a Prospective Study.

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.

  • 0 views
  • 23 Jan, 2021
  • 2 locations
None
Determination of the Validity of a Questionnaire to Assess the Visual Function of Preverbal Children With Operable Bilateral Ocular Pathologies

In some symmetrical pediatric ocular pathologies, the treatment is surgical with usually satisfactory postoperative results in visual terms. However, it is often difficult to choose the right moment to operate. The main difficulty is that the child's vision is unknown since the child is still in a preverbal age. The …

  • 20 views
  • 03 Jun, 2021
  • 1 location
None
Handheld Device Compared With a Standard Eye Care Diagnostic Device in Measuring Ophthalmic Refraction

This study is exploratory and examines whether the best-corrected visual acuities (BCVA's) from trial frames created with the refraction results obtained from a novel handheld optical device yields results similar to the ophthalmic refraction obtained from an autorefractor in healthy volunteers age stratum of 18 through 65 years.

  • 0 views
  • 10 May, 2021
  • 1 location
None
Efficacy of Xiidra in Dry Eye Disease After Collagen Cross Linking

dry eye disease after corneal collagen cross linking affect ocular function leading to reduced vision, photophobia, glare, halos, and foreign body sensation.

  • 0 views
  • 24 Sep, 2021
  • 1 location
None
VISIODOL: Validation of the VISIODOL Scale

The aim of this study is to validate the VISIODOL scale for screening of pain in people with visual impairment.

stimulants
visual impairment
fasting
  • 3 views
  • 26 Jan, 2021
  • 1 location
None
NR600 System Retinal Prosthesis for Patients With Retinal Degenerative Diseases

degenerative diseases and severe visual impairment

other disease
visual impairment
optic nerve
retinal degeneration
retinal surgery
  • 126 views
  • 28 Jan, 2021
  • 6 locations
None
Effect of Type of Head Positioning on Retinal Displacement in Vitrectomy for Retinal Detachment

Patients may experience metamorphopsia, or image distortion, after having vitrectomy to repair their rhegmatogenous retinal detachments especially those with a detached macula. Retinal displacement, as measured on autofluorescence photography, likely contributes to this distortion. It is thought that the retina slips inferiorly due to the residual subretinal fluid shifting as …

  • 0 views
  • 09 May, 2021
  • 1 location
None
Retinal Displacement Rates in Pneumatic Retinopexy Versus Pars Plana Vitrectomy For Primary Retinal Detachment

Patients may experience metamorphopsia, or image distortion, after having vitrectomy to repair their rhegmatogenous retinal detachments (RRDs) especially those with a detached macula. Retinal displacement, as measured on autofluorescence photography, likely contributes to this distortion. There is no study in the scientific literature comparing the rate of retinal displacement and …

retinal tear
proliferative vitreoretinopathy
detached
vitrectomy
retinopexy
  • 5 views
  • 10 May, 2021
  • 1 location