Elsevier, Year Book of Ophthalmology, (2011), p. 88-89
DOI: 10.1016/j.yoph.2011.02.006
BMJ Publishing Group, British Journal of Ophthalmology, 11(94), p. 1472-1477
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Aims To determine if screening with an ultrasound A-scan and prophylactic treatment of primary angle closure (PAC) with laser peripheral iridotomy (LPI) can reduce the incidence of primary angle closure glaucoma (PACG) in Mongolia. Methods A single-masked randomised controlled trial was initiated in 1999. 4725 volunteer Mongolian participants >/=50 years old from the capital Ulaanbaatar or the rural province of Bayankhongor were recruited, of which 128 were excluded with glaucoma. 4597 were randomly allocated to the control, no-screening arm or screening with ultrasound central anterior chamber depth (cACD), with the cut-off set at