Low Luminance Questionnaire

Reference citation:

Owsley C, McGwin G Jr, Scilley K, Kallies K. Development of a questionnaire to assess vision problems under low luminance in age-related maculopathy. Investigative Ophthalmology and Visual Science 2006;47:528-535.

Summary:

The LLQ is a 32-item questionnaire designed to assess self-reported visual problems under low luminance and at night for use in studies on age-related maculopathy (ARM). It is designed to be interviewer-administered. It has good internal consistency reliability, construct validity, subscale scores related to rod-mediated visual function, and good test-retest reliability for five of six subscales. Please note that in the article published in IOVS that there is an error in the footnote of Table 4, page 532. The items in the extreme lighting subscale should read: 1, 2, 3, 4, 5, 6, 7, 8. We regret the error in the original publication. The correction was made in an erratum note in the March 2006 issue of IOVS

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Publications using the LLQ:

Owsley C, McGwin G Jr, Jackson G R, Heimburger D C, Pyathilake C J, Klein R, White M, Kallies K. Effect of short-term, high-dose retinol on dark adaptation in aging and early age-related maculopathy. Investigative Ophthalmology and Visual Science. 2006;47:1310-1318.

Owsley C, McGwin G Jr, Jackson GR, Kallies K, Clark M. Cone- and rod-mediated dark adaptation impairment in age-related maculopathy. Ophthalmology 2007, in press.