NCT04434612

Brief Summary

Glaucoma is the leading cause of irreversible blindness worldwide. The visual function of patients with advanced glaucoma is severely impaired, and the vision-related activities (e.g. movement, reading) are obviously restricted, which may have a negative impact on the patients' quality of life (QOL) and increase the burden on individuals and families. Low vision aids (LVAs) and other devices for vision rehabilitation (VR) are useful for patients with advanced glaucoma to maximize the function of residual vision and improve the QOL. OXSIGHT smart glasses are the latest LVAs eyeglasses that are expected to improve the QOL for patients with low vision (LV), such as those with glaucoma. Clinical data were collected to evaluate the efficacy and its influencing factors of OXSIGHT smart glasses in patients with advanced glaucoma, in providing theoretical basis for subsequent clinical studies.

Trial Health

35
At Risk

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Jun 2020

Status
unknown

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

June 6, 2020

Completed
4 days until next milestone

First Submitted

Initial submission to the registry

June 10, 2020

Completed
7 days until next milestone

First Posted

Study publicly available on registry

June 17, 2020

Completed
1.5 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2021

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2021

Completed
Last Updated

June 17, 2020

Status Verified

June 1, 2020

Enrollment Period

1.6 years

First QC Date

June 10, 2020

Last Update Submit

June 15, 2020

Conditions

Keywords

OXSIGHTadvanced glaucomalow vision aidshead-mounted electronic devices

Outcome Measures

Primary Outcomes (1)

  • Changes from baseline CLVQOL scores at different time points

    The Low vision Quality of Life Questionnaire (LVQOL) specifically investigates the QOL of visually impaired patients. The questionnaire consists of 25 closed items and examines four dimensions: distance vision, mobility and lighting; adjustment; reading and fine work; daily activities. As a convenient tool, LVQOL is widely used in clinical settings to evaluate effects of clinical treatment and corresponding strategies of low-vision rehabilitation. CLVQOL is the Chinese version of LVQOL.

    The examination was performed at 1 day, 1 week, 2 weeks, 4 weeks and 8 weeks after intervention.

Secondary Outcomes (4)

  • Changes from baseline visual acuity at different time points

    The examination was performed at 1 day, 1 week, 2 weeks, 4 weeks and 8 weeks after intervention.

  • Changes from baseline contrast sensitivity at different time points

    The examination was performed at 1 day, 1 week, 2 weeks, 4 weeks and 8 weeks after intervention.

  • Changes from baseline visual field at different time points

    The examination was performed at 1 day, 1 week, 2 weeks, 4 weeks and 8 weeks after intervention.

  • Changes from baseline scores of mobility test at different time points

    The examination was performed at 1 day, 1 week, 2 weeks, 4 weeks and 8 weeks after intervention.

Study Arms (1)

OXSIGHT smart glasses

EXPERIMENTAL

Wearing OXSIGHT smart glasses

Device: OXSIGHT smart glasses

Interventions

OXSIGHT smart glasses are head-mounted electronic LVAs designed for LV patients with visual field loss.

Also known as: There is no
OXSIGHT smart glasses

Eligibility Criteria

Age10 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • age ≥10 years, able to complete all tests and inspections;
  • a definite diagnosis of primary or secondary glaucoma or glaucoma in children;
  • the best corrected visual acuity of the better eye is no more than 0.3 and better than 0.05; visual field ≤10° and MD value \< -12db;
  • Visual acuity, intraocular pressure, and other eye conditions have been stable for more than 6 months.

You may not qualify if:

  • unable to cooperate with related inspections;
  • a history of eye surgery or eye laser within 6 months;
  • diseases that interfere with the diagnosis of glaucoma, such as optic disc dysplasia, obvious anisometropia, retinal vascular diseases, optic nerve diseases, macular degeneration, cerebrovascular diseases, etc.;
  • pregnant or lactating women;
  • those who refuse to sign the informed consent or voluntarily withdraw from the study due to discomfort or other reasons.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (2)

  • Foster PJ, Johnson GJ. Glaucoma in China: how big is the problem? Br J Ophthalmol. 2001 Nov;85(11):1277-82. doi: 10.1136/bjo.85.11.1277.

    PMID: 11673287BACKGROUND
  • Quigley HA, Broman AT. The number of people with glaucoma worldwide in 2010 and 2020. Br J Ophthalmol. 2006 Mar;90(3):262-7. doi: 10.1136/bjo.2005.081224.

Related Links

Central Study Contacts

Yiqing Li, doctor

CONTACT

Zhidong Li, doctor

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
NA
Masking
NONE
Purpose
TREATMENT
Intervention Model
SINGLE GROUP
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 10, 2020

First Posted

June 17, 2020

Study Start

June 6, 2020

Primary Completion

December 31, 2021

Study Completion

December 31, 2021

Last Updated

June 17, 2020

Record last verified: 2020-06

Data Sharing

IPD Sharing
Will not share