J Korean Ophthalmol Soc.  2012 Jul;53(7):953-959. 10.3341/jkos.2012.53.7.953.

Quantitative Measurement of Glare Disability Using a Glaremeter

• Song YK
• Choe CM
• Kim SS
• Lee HK

• KMID: 2215853
• DOI: http://doi.org/10.3341/jkos.2012.53.7.953

Abstract

PURPOSE
To report glare disability measured by a glaremeter.
METHODS
Glaremeter values were measured in 270 normal eyes and 100 pseudophakic eyes. The normal eyes were classified into 3 age groups (teenage to 60's) with 90 eyes in each group. The pseudophakic eyes were classified into the monofocal IOL (intraocular lens) and multifocal IOL implanted groups with 50 eyes in each group. Glaremeter values of each group were measured using a glaremeter under photopic (82.2 +/- 5.1 cd/m2) and mesopic (5.5 +/- 0.3 cd/m2) conditions.
RESULTS
The highest mean glaremeter value in the normal eyes was 8657.34 +/- 691.04 mm2 under the photopic condition and 8837.97 +/- 805.83 mm2 under the mesopic condition in the oldest group. The glaremeter value of the multifocal IOL implanted group was 9390.87 +/- 846.7 mm2 under the photopic condition and 9799.87 +/- 823.72 mm2 under the mesopic condition, which was significantly higher than the normal eye and the monofocal IOL implanted groups (p < 0.05).
CONCLUSIONS
In the normal population, the mean glaremeter values were increased according to age, and a significant increase was observed in the multifocal IOL implanted group. The present study results provide good basic data for cataract and presbyopia refractive surgery predicted to produce glare disability inevitably.

Keyword

Aging; Glare disability; Glaremeter value; Intraocular lens

MeSH Terms

Aging
Cataract
Eye
Glare
Humans
Lenses, Intraocular
Presbyopia
Refractive Surgical Procedures

Figure

• 

  Figure 1 (A) Automatically calculated area of the margin drawn by the patient with a glaremeter. (B) The patient looks at the monitor, which displays a white circle.

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  Figure 2 Comparison of the mean glaremeter value in 3different age groups. The glaremeter values increased according to age (p < 0.001, ANOVA). (A) The photopic glaremeter value and (B) mesopic glaremeter values were significantly lower in Group 1, the youngest group (*p < 0.01, independent samples t-test). (Group 1, <30 yr; Group 2, 30-60 yr; Group 3, >60 yr).

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  Figure 3 Comparison of the mean glaremeter value in the normal and pseudophakic eye groups. (A) The photopic glaremeter value and (B) mesopic glaremeter value were significantly higher in the multifocal IOL group (*p < 0.01, ANOVA). IOL = intraocular lens. (Group 3, >60 yr normal eyes).

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