Table 4 Prevalence of glaucoma in Asia, major population based studies.
| Year | Study and location | Population | Prevalence of glaucoma | |||
|---|---|---|---|---|---|---|
| Overall | POAG | PACG | Secondary | |||
| 1991 | Japan75 | 8126, ⩾40 years | 3.6% | 2.6% | 0.3% | 0.6% |
| 1996 | Mongolia76 | 942, ⩾40 years | 2.2% | 0.5%* | 1.4% | 0.3% |
| 2000 | Tanjong Pagar Survey, Singapore10 | 1232, ⩾40 years | 3.2% | 1.6% | 1.0% | 0.5% |
| 2000 | Andhra Pradesh Eye Study, India23,24 | 2522, ⩾40 years | 1.6% | 1.1% | ||
| 2003 | Aravind Eye Study, India28,30 | 5150, ⩾40 years | 2.6% | 1.7% | 0.5% | 0.3% |
| 2003 | Thailand80 | 790, ⩾50 years | 3.8% | 2.3% | 0.9% | 0.7% |
| 2004 | Tajimi City, Japan78,79 | 3021, ⩾40 years | 5.0% | 3.9% | 0.6% | 0.5% |
| 2004 | Dhaka, Bangladesh77 | 3562, ⩾35 years | 2.1% | 2.5% | 0.4% | 0.2% |
POAG, primary open angle glaucoma; PACG, primary angle closure glaucoma.
*As all these subjects were older than 60years, the prevalence of POAG was 2.1% for this age group.