The incidence of primary angle-closure glaucoma in Olmsted County, Minnesota.

OBJECTIVES To determine the incidence of primary angle-closure glaucoma (PACG) and to assess the visual outcomes of patients treated for PACG. DESIGN Population-based retrospective incidence study. SETTING AND PATIENTS Residents of Olmsted County, Minnesota, aged 40 years and older and diagnosed with PACG in the 13-year period between January 1, 1980, and December 31, 1992. MAIN OUTCOME MEASURE Incident cases of PACG identified through the Medical Diagnostic Index of Mayo Clinic, Rochester, Minn, and the Rochester Epidemiology Project. RESULTS Thirty-six incident cases were identified. The mean annual age-and sex-adjusted incidence per 100000 people aged 40 years and older was 8.3 (95% confidence interval, 5.6-11.0). The probability of monocular blindness associated with PACG at the time of diagnosis was 14%. Among patients not monocularly blind at diagnosis, the 5-year probability of developing monocular blindness associated with PACG was 4%. CONCLUSIONS Primary angle-closure glaucoma is an uncommon disease in our community. Most of the patients blinded by PACG were blind at the time the condition was diagnosed.

[1]  L. Melton,et al.  History of the Rochester Epidemiology Project. , 1996, Mayo Clinic proceedings.

[2]  Fredric J. Gross,et al.  Increased prevalence of occludable angles and angle-closure glaucoma in patients with pseudoexfoliation. , 1994, American journal of ophthalmology.

[3]  B. Thylefors,et al.  The global impact of glaucoma. , 1994, Bulletin of the World Health Organization.

[4]  N. Congdon,et al.  Issues in the epidemiology and population-based screening of primary angle-closure glaucoma. , 1992, Survey of ophthalmology.

[5]  J Katz,et al.  Racial differences in the cause-specific prevalence of blindness in east Baltimore. , 1991, The New England journal of medicine.

[6]  Huang Cn.  [An epidemiologic study of glaucoma in Shunyi County, Beijing]. , 1989 .

[7]  P. Alsbirk.  Early detection of primary angle‐closure glaucoma , 1988, Acta ophthalmologica.

[8]  R. Lowe.  Clinical types of primary angle closure glaucoma. , 1988, Australian and New Zealand journal of ophthalmology.

[9]  H. Taylor,et al.  The prevalence of glaucoma among Eskimos of northwest Alaska. , 1987, Archives of ophthalmology.

[10]  Y. Yassur,et al.  Epidemiology of acute angle-closure glaucoma: incidence and seasonal variations. , 1985, Ophthalmologica. Journal international d'ophtalmologie. International journal of ophthalmology. Zeitschrift fur Augenheilkunde.

[11]  Guo Bk.  A statistical study of various ocular diseases among the inhabitants of a residential quarter in Shanghai , 1983 .

[12]  L. Kurland,et al.  The patient record in epidemiology. , 1981, Scientific American.

[13]  B. Bengtsson.  The prevalence of glaucoma. , 1981, The British journal of ophthalmology.

[14]  E. Batschelet.  Circular statistics in biology , 1981 .

[15]  K. Kupka,et al.  International classification of diseases: ninth revision. , 1978, WHO chronicle.

[16]  R. Mapstone.  Dilating dangerous pupils. , 1977, The British journal of ophthalmology.

[17]  Alsbirk Ph.  Primary angle-closure glaucoma. Oculometry, epidemiology, and genetics in a high risk population. , 1976 .

[18]  S. Drance,et al.  The visual field and nerve head in angle-closure glaucoma. A comparison of the effects of acute and chronic angle closure. , 1975, Archives of ophthalmology.

[19]  M. Luntz.  Primary angle-closure glaucoma in urbanized South African caucasoid and negroid communities. , 1973, The British journal of ophthalmology.

[20]  R. Lowe.  Primary angle-closure glaucoma. Inheritance and environment. , 1972, The British journal of ophthalmology.

[21]  D. Albert,et al.  Penetrating ocular injury by a plant seed. , 1971, Archives of ophthalmology.

[22]  W. M. Grant,et al.  Ocular complications of drugs. Glaucoma. , 1969, JAMA.

[23]  S. Tsolakis,et al.  Bedford glaucoma survey. , 1968, British medical journal.

[24]  W. Beyer.  Handbook of Tables for Probability and Statistics , 1967 .

[25]  F. Hollows,et al.  Intra-ocular pressure, glaucoma, and glaucoma suspects in a defined population. , 1966, The British journal of ophthalmology.

[26]  R. Lowe.  PRIMARY ANGLE-CLOSURE GLAUCOMA* , 1964, The British journal of ophthalmology.

[27]  E. Kaplan,et al.  Nonparametric Estimation from Incomplete Observations , 1958 .

[28]  P A CHANDLER,et al.  Narrow-angle glaucoma. , 1952, American journal of ophthalmology.