The role of contrast sensitivity measurement in patients with low vision
2 August 2004
Volume 05, Issue 3
Evidence for the importance of measuring contrast sensitivity - specifically in patients with low vision.
Introduction
The measurement of contrast sensitivity is taught on undergraduate optometry courses, yet few practitioners routinely use contrast sensitivity tests in practice (Latham 1998). Contrast sensitivity measurement can be of benefit in many areas of optometric practice, including the diagnosis of ocular disease (Arden 1979), contact lens fitting (Bradley et al. 1993) and in patients who have difficulty following refractive surgery (Perez-Santonja et al. 1998). This article provides evidence for the importance of measuring contrast sensitivity specifically in patients with low vision. It will discuss the contrast sensitivity function, the Pelli–Robson chart (the most common method of clinically measuring contrast sensitivity) and the relevance of this measurement for everyday tasks. Finally, mechanisms for improving contrast will be mentioned.
Sign in to view the article
Not a member? Start enjoying the benefits of College membership today. Take a look at what the College can offer you and view our membership categories and rates.
Related further reading
The virtual Hospital Eye Service experience replaces the in-person experience pre-registration trainees would normally have gained in a hospital setting.
Jane Veys MCOptom on acronym ambivalence
As the demand for ophthalmology services among new and existing patients mounts, Sophie Goodchild explores a pathway to support people on NHS lists at every stage of their eye care journey.