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A Singapore Pilot Study to Assess Neurovision in Treatment of Low Myopia

Primary Purpose

Myopia

Status
Completed
Phase
Phase 1
Locations
Singapore
Study Type
Interventional
Intervention
Neurovision
Sponsored by
Singapore National Eye Centre
About
Eligibility
Locations
Outcomes
Full info

About this trial

This is an interventional treatment trial for Myopia focused on measuring Neurovision, Myopia Therapy

Eligibility Criteria

15 Years - 55 Years (Child, Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria: The subject's cycloplegic spherical equivalence in the worst eye does not exceed -1.5 DS and the astigmatism does not exceed 0.50 DC. The subject's refractive status is stable, with no increase beyond 0.5D in sphere or cylinder over the last six months. The subject's age is between 17-55 years. The subject's uncorrected visual acuity 0.7 LogMar The subject's best corrected visual acuity 0.05 LogMar The subject is cognitively intact and is able to follow multiple step instructions. The subject is able and willing to attend all study sessions and visits at the required frequency: The total number of treatments is individual, approximately 30. The required pace for the treatment sessions is at least 3 sessions per week. No foreseen interruptions longer than 2 weeks during the treatment course. Subject (or subject's parent/legal guardian if subject is less than 21 years of age at study entry) agrees to sign the Informed Consent Form (See Appendix D) Exclusion Criteria: The subject suffers from any other eye disease(s) or other causes for the reduced visual acuity, aside from myopia and/or astigmatism. The subject suffers from myopia-related visual complications resulting in visual loss, including myopic macular degeneration, myopic cataract and previous or pre-existing myopic retinal detachment. The subject is suffering from Diabetes Mellitus. The subject has previously undergone a refractive surgery procedure in either eye. The subject is or may be pregnant. The subject has an activity limitation due to medical disorders (including migraines, seizure disorders, etc.), medications, or emotional status that might potentially impair the subject's ability to perform the treatment.

Sites / Locations

  • Singapore Eye Research Institute

Outcomes

Primary Outcome Measures

Manifest Subjective and Objective refraction
Cycloplegic Objective refraction
Accommodation amplitude
Distance visual acuity (Uncorrected Visual Acuity - UCVA, and BCVA)
Near visual acuity
Contrast sensitivity (corrected and uncorrected)
Visual Evoked Potential (VEP) and Multifocal VEP

Secondary Outcome Measures

Full Information

First Posted
July 3, 2006
Last Updated
June 23, 2010
Sponsor
Singapore National Eye Centre
Collaborators
Singapore Eye Research Institute, NeuroVision
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1. Study Identification

Unique Protocol Identification Number
NCT00348127
Brief Title
A Singapore Pilot Study to Assess Neurovision in Treatment of Low Myopia
Official Title
A Singapore Pilot Study To Evaluate The Efficacy Of A Computerized System For The Vision Improvement Of People With Low Myopia
Study Type
Interventional

2. Study Status

Record Verification Date
January 2010
Overall Recruitment Status
Completed
Study Start Date
March 2003 (undefined)
Primary Completion Date
October 2004 (Actual)
Study Completion Date
October 2004 (Actual)

3. Sponsor/Collaborators

Name of the Sponsor
Singapore National Eye Centre
Collaborators
Singapore Eye Research Institute, NeuroVision

4. Oversight

5. Study Description

Brief Summary
To assess how well and safe is Neurovision technology in improving the vision of people with low myopia in Singapore
Detailed Description
The eye care industry has focused a majority of its resources on solving problems associated with the ocular or "front end" of the visual system. These investments have led to exciting technology advances, such as intraocular lenses (IOLs) and Laser Vision Correction (LVC) as well as in the development of contact lenses and improved eyewear. NeuroVision's innovative Neural Vision Correction (NVC) technology has been developed through research focused solely on optimizing performance of the neural or "back end" of the visual system. NeuroVision's technology is distinguished from other products in this space by the Company's expert understanding of how the brain processes vision, its reliance on scientific and clinical research It is the result of two decades of research by Dr. Uri Polat, founder, who has dedicated 20 years of scientific and clinical research to understanding how the brain processes visual information, how neural activity is related to visual perception, and how visual processing interacts with other neural systems. His work has been published in leading scientific journals and is widely cited by the scientific community. NeuroVision's NVC vision correction technology is a non-invasive, patient-specific treatment based on visual stimulation and facilitation of neural connections responsible for vision. The technology has been clinically proven in the treatment of adult amblyopia ("lazy eye"), which until now has been considered untreatable. The Company has received FDA 510(k) marketing clearance indicating NVC for the treatment of adult amblyopia in patients 9 years or older in the US. The Company also received Medical CE-Mark to market its Amblyopia and Low-Myopia products in the EU. Company products are also approved for use in Israel by the Israeli Ministry of Health - Device License Authority. This study was a prospective non-controlled preliminary clinical study as a prelude to a randomized clinical trial, evaluating the efficacy and safety of NeuroVision NVC correction technology in improving visual acuity and contrast sensitivity function.

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Myopia
Keywords
Neurovision, Myopia Therapy

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 1
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
Non-Randomized

8. Arms, Groups, and Interventions

Intervention Type
Device
Intervention Name(s)
Neurovision
Primary Outcome Measure Information:
Title
Manifest Subjective and Objective refraction
Title
Cycloplegic Objective refraction
Title
Accommodation amplitude
Title
Distance visual acuity (Uncorrected Visual Acuity - UCVA, and BCVA)
Title
Near visual acuity
Title
Contrast sensitivity (corrected and uncorrected)
Title
Visual Evoked Potential (VEP) and Multifocal VEP

10. Eligibility

Sex
All
Minimum Age & Unit of Time
15 Years
Maximum Age & Unit of Time
55 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: The subject's cycloplegic spherical equivalence in the worst eye does not exceed -1.5 DS and the astigmatism does not exceed 0.50 DC. The subject's refractive status is stable, with no increase beyond 0.5D in sphere or cylinder over the last six months. The subject's age is between 17-55 years. The subject's uncorrected visual acuity 0.7 LogMar The subject's best corrected visual acuity 0.05 LogMar The subject is cognitively intact and is able to follow multiple step instructions. The subject is able and willing to attend all study sessions and visits at the required frequency: The total number of treatments is individual, approximately 30. The required pace for the treatment sessions is at least 3 sessions per week. No foreseen interruptions longer than 2 weeks during the treatment course. Subject (or subject's parent/legal guardian if subject is less than 21 years of age at study entry) agrees to sign the Informed Consent Form (See Appendix D) Exclusion Criteria: The subject suffers from any other eye disease(s) or other causes for the reduced visual acuity, aside from myopia and/or astigmatism. The subject suffers from myopia-related visual complications resulting in visual loss, including myopic macular degeneration, myopic cataract and previous or pre-existing myopic retinal detachment. The subject is suffering from Diabetes Mellitus. The subject has previously undergone a refractive surgery procedure in either eye. The subject is or may be pregnant. The subject has an activity limitation due to medical disorders (including migraines, seizure disorders, etc.), medications, or emotional status that might potentially impair the subject's ability to perform the treatment.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Donald Tan, FRCS
Organizational Affiliation
Singapore Eye Research Institute
Official's Role
Principal Investigator
Facility Information:
Facility Name
Singapore Eye Research Institute
City
Singapore
ZIP/Postal Code
168751
Country
Singapore

12. IPD Sharing Statement

Citations:
PubMed Identifier
15096608
Citation
Polat U, Ma-Naim T, Belkin M, Sagi D. Improving vision in adult amblyopia by perceptual learning. Proc Natl Acad Sci U S A. 2004 Apr 27;101(17):6692-7. doi: 10.1073/pnas.0401200101. Epub 2004 Apr 19.
Results Reference
background
PubMed Identifier
9468134
Citation
Polat U, Mizobe K, Pettet MW, Kasamatsu T, Norcia AM. Collinear stimuli regulate visual responses depending on cell's contrast threshold. Nature. 1998 Feb 5;391(6667):580-4. doi: 10.1038/35372.
Results Reference
background
PubMed Identifier
9224277
Citation
Levi DM, Polat U, Hu YS. Improvement in Vernier acuity in adults with amblyopia. Practice makes better. Invest Ophthalmol Vis Sci. 1997 Jul;38(8):1493-510.
Results Reference
background
PubMed Identifier
8776476
Citation
Polat U, Norcia AM. Neurophysiological evidence for contrast dependent long-range facilitation and suppression in the human visual cortex. Vision Res. 1996 Jul;36(14):2099-109. doi: 10.1016/0042-6989(95)00281-2.
Results Reference
background
PubMed Identifier
8038576
Citation
Sagi D, Tanne D. Perceptual learning: learning to see. Curr Opin Neurobiol. 1994 Apr;4(2):195-9. doi: 10.1016/0959-4388(94)90072-8.
Results Reference
background
PubMed Identifier
8108388
Citation
Polat U, Sagi D. Spatial interactions in human vision: from near to far via experience-dependent cascades of connections. Proc Natl Acad Sci U S A. 1994 Feb 15;91(4):1206-9. doi: 10.1073/pnas.91.4.1206.
Results Reference
background
PubMed Identifier
8506641
Citation
Polat U, Sagi D. Lateral interactions between spatial channels: suppression and facilitation revealed by lateral masking experiments. Vision Res. 1993 May;33(7):993-9. doi: 10.1016/0042-6989(93)90081-7.
Results Reference
background
PubMed Identifier
8692904
Citation
Levi DM, Polat U. Neural plasticity in adults with amblyopia. Proc Natl Acad Sci U S A. 1996 Jun 25;93(13):6830-4. doi: 10.1073/pnas.93.13.6830.
Results Reference
background
Links:
URL
http://www.seri.com.sg/
Description
Singapore Eye Research Institute

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A Singapore Pilot Study to Assess Neurovision in Treatment of Low Myopia

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