03 May 2013
Posted in Pearls in Ophthalmology
By Brooke Strickland
In this cross-sectional study, researchers studied individuals in Sweden between the ages 55 and 79. The study took place over a five year period and a total of 32, 918 subjects were surveyed. Researchers registered the age, sex, and amount of visual field loss in subjects with previously undiagnosed glaucoma identified at the screening. The goal of the study was to assess the prevalence and severity of undetected glaucoma.
The results showed that among the screened subjects, who were 77.5% of all invited subjects, a total of 406 subjects (1.23%) were identified with previously undetected glaucoma. Pervasiveness increased with age (0.55% at 55-59 years to 2.73% at 75 to 79 years). Approximately 66% of the cases were identified with unilateral disease. Some eyes had early (35%) or moderate (31%) glaucomatous visual field defects. In addition, nearly one-third of subjects had advanced visual field loss in at least one eye. (1)
What to take away from the study: There is an increased risk of undetected glaucoma as patients get older, but the severity of the disease did not increase in subjects that were age 60 or older.
( Hejil, Anders, MD, PhD., Bengtsson, Boel, PhD, Oskarsdottir, Sigridur Erla, MD. “Prevalence and Severity of Undetected Manifest Glaucoma: Results from the Early Manifest Glaucoma Trial Screening. Ophthalmology. Manuscript no. 2012-1212. Published online April 29, 2013. Accessed April 30, 2013. http://www.aaojournal.org/article/S0161-6420%2813%2900058-4/abstract