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A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision

A Standardized Obstacle Course for Assessment of Visual Function in Ultra Low Vision and Artificial Vision

Published on: February 11, 2014

How effective is the new community-based Welsh low vision service?

H Court¹, B Ryan, C Bunce

¹School of Optometry and Vision Sciences, Cardiff University, Cardiff, UK. waltersh1@cardiff.ac.uk

The British Journal of Ophthalmology

|July 6, 2010

Summary

Community-based low vision services (CLVS) and hospital-based low vision services (HBLV) showed no significant differences in user-centered or clinical outcomes. Both services effectively reduced self-reported visual disability in patients with low vision.

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Area of Science:

Ophthalmology
Public Health
Rehabilitation Science

Background:

Low vision significantly impacts daily living and quality of life.
Access to specialized low vision services is crucial for managing visual impairment.
Evaluating different service delivery models is essential for optimizing patient care.

Purpose of the Study:

To compare user-centered and clinical outcomes between a new community-based low vision service (CLVS) and a traditional hospital-based low vision service (HBLV).
To assess the effectiveness of both CLVS and HBLV in improving visual function and patient satisfaction.

Main Methods:

Prospective controlled before and after study design.
Participants (n=488) recruited from CLVS (n=343) and HBLV (n=145) with median ages of 82 and 80 years, respectively.
Primary outcome: change in visual disability (NEI-VFQ); Secondary outcomes: low vision aid use, satisfaction, and near visual acuity.

Main Results:

No significant differences were found in user-centered or clinical outcomes between CLVS and HBLV.
Both services demonstrated a significant reduction in self-reported visual disability (0.46 logits for HBLV, 0.57 logits for CLVS) after intervention.
Improvements in near visual acuity and satisfaction were observed, with no statistically significant differences between the two service models.

Conclusions:

Community-based low vision services (CLVS) are as effective as hospital-based low vision services (HBLV) in improving outcomes for individuals with low vision.
Both service models provide effective interventions for reducing visual disability and enhancing patient experience.
These findings support the integration of CLVS as a viable and effective option for low vision care delivery.