Impact of Glaucoma and Visual Field Loss on Life Space

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

Get a concise snapshot of the trial, including recruitment status, study phase, enrollment targets, and key timeline milestones.

Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

88 participants

Study Classification

OBSERVATIONAL

Study Start Date

2018-10-09

Study Completion Date

2026-05-30

Brief Summary

Review the sponsor-provided synopsis that highlights what the study is about and why it is being conducted.

Mobility refers to a person's purposeful movement through the environment from one place to another and can be conceptualized as a continuum from bed bound (immobility) on one extreme to making excursions to distant locations on the other extreme. Primary open-angle glaucoma (POAG) is a chronic, progressive optic neuropathy that can lead to gradual loss of vision in the peripheral field and central vision. Older adults with POAG have an increased risk for motor vehicle collisions and falls. Moreover, existing studies suggest that patients with POAG exhibit more postural sway while standing as measured by a balance platform and also tend to walk more slowly than those who are normally sighted and free of ocular disease. While these disturbances likely influence mobility, there has been little research directly assessing the impact of POAG on mobility. This study will assess the impact of POAG on life space (one aspect of mobility) and will determine whether difficulties with life space are associated with difficulties experienced under conditions of dim lighting.

Related Clinical Trials

Explore similar clinical trials based on study characteristics and research focus.

Glaucoma, Visual Field Loss, and Their Association With Life Space in Older Adults

NCT04396002

Primary Open Angle Glaucoma

RECRUITING

Effects of Primary Open-angle Glaucoma on Visual-motor Coordination

NCT06692205

Primary Open-angle Glaucoma

RECRUITING

Malay Glaucoma Eye Study II Navigation, Mobility and Reading Ability in Primary Glaucoma

NCT04736264

Primary Open Angle Glaucoma Primary Angle Closure Glaucoma

UNKNOWN NA

How Has Glaucoma Affected Your Quality of Life?

NCT01476644

Glaucoma Quality of Life

COMPLETED NA

Functional Brain Changes of Primary Open-angle Glaucoma Patients

NCT02570867

Glaucoma

UNKNOWN

Detailed Description

Dive into the extended narrative that explains the scientific background, objectives, and procedures in greater depth.

Aim 1: To examine the extent of life space in older adults with POAG using the Life Space Questionnaire and to examine whether life space in persons with POAG is associated with the magnitude of visual field impairment.

Aim 2: To examine difficulties seeing under dim illumination and at night in older adults with POAG using the Low Luminance Questionnaire and to examine whether greater difficulty in seeing under dim illumination and at night is related to the magnitude of visual field loss.

Aim 3: To examine the relationship in older adults with POAG between visual problems seeing under dim illumination and at night (Low Luminance Questionnaire) and their life space (Life Space Questionnaire).

Conditions

See the medical conditions and disease areas that this research is targeting or investigating.

Primary Open-angle Glaucoma

Study Design

Understand how the trial is structured, including allocation methods, masking strategies, primary purpose, and other design elements.

Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Study Groups

Review each arm or cohort in the study, along with the interventions and objectives associated with them.

Primary Open-Angle Glaucoma

Two following two questionnaires will be administered:

1. Life Space Questionnaire: This 9-item questionnaire is interested in finding out how much a person gets out and about and the spatial extent of the person's typical life space, i.e., what is the usual range of places in which the person engages in activities within the designated time frame.
2. Low Luminance Questionnaire: This 32-item questionnaire is interested in finding out problems that involve vision under different lighting conditions or feelings that people have about your vision under different lighting conditions.

Questionnaires

Intervention Type OTHER

Two questionnaires will be administered, one focusing on life space and the other focusing on low luminance.

Interventions

Learn about the drugs, procedures, or behavioral strategies being tested and how they are applied within this trial.

Questionnaires

Two questionnaires will be administered, one focusing on life space and the other focusing on low luminance.

Intervention Type OTHER

Eligibility Criteria

Check the participation requirements, including inclusion and exclusion rules, age limits, and whether healthy volunteers are accepted.

Inclusion Criteria

* Clinical diagnosis of primary open-angle glaucoma
* Best-corrected visual acuity of 20/40 or better
* Spherical refraction within ± 5 Diopters
* Cylinder refraction within ± 3 Diopters