The middle-Norway eye-screening study. II. Prevalence of simple and capsular glaucoma.
In this population-based screening study, dealing with 1941 persons above 64 years of age from three different municipalities, the overall open-angle glaucoma prevalence was found to be 8.3%. The prevalence in the separate areas (7.0%, 8.6%, and 9.5%) were not statistically different. Roughly 30% of the population with pseudo-exfoliation syndrome had glaucoma, and 4.2% had ocular hypertension, whereas the corresponding figures for those without pseudo-exfoliation were 4% and 0.8%, respectively. The high glaucoma rates are partly due to the high pseudo-exfoliation prevalence in the area. The prevalence of the capsular glaucoma increased towards a maximum between 75 and 79 years of age, whereafter the curve declined. This may indicate reduced survival time of glaucomatous patients.
Ringvold
A
A
Department of Ophthalmology, University of Trondheim, Norway.
Blika
S
S
Elsås
T
T
Guldahl
J
J
Brevik
T
T
Hesstvedt
P
P
Hoff
K
K
Høisen
H
H
Kjørsvik
S
S
Rossvold
I
I
D000368:Aged; D000369:Aged, 80 and over; D000869:Anterior Eye Segment; D005128:Eye Diseases / Q000453:epidemiology; D005260:Female; D005901:Glaucoma / Q000453:epidemiology*; D005902:Glaucoma, Open-Angle / Q000453:epidemiology*; D006801:Humans; D007429:Intraocular Pressure; D008297:Male; D009664:Norway / Q000453:epidemiology; D009798:Ocular Hypertension / Q000453:epidemiology; D015995:Prevalence; D015351:Vision Screening