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 continue

Forgotten password?
Register

Not already a member of The College?

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

Visual impairment is common after a stroke, but optometrists can help patients rehabilitate optically and by recommending effective online therapies, writes John Windell.

Join us for our upcoming campaign where we will be highlighting the importance of good vision, eye health, and helping the public to #FocusOnLife.

Gordon Ilett tells us about his career, his experience on charitable and professional bodies, and his new position as Chair of the Optometric Fees Negotiating Committee.