Periodic health examination, 1995 update: 3. Screening for visual problems among elderly patients

Table 2: Prevalence of glaucoma

Study and location Age range of subjects, yr Diagnostic methods* Prevalence of glaucoma, % % of subjects with normal IOP

Hollows et al, [44] Ferndale, Wales 55-70 T,D,VFD 0.47 35

Liebowitz et al, [46] Framingham, Mass. 52-85 T,VFD 1.43 53

Stromberg, [47] Skovde, Sweden > 40 T,D,VFD 0.41 13

Stromberg, [47] Dalby, Sweden > 40 T,D,VFD 0.86 62

Bankes et al, [48] Bedford, England > 40 T,D,VFD 0.76 7

Armaly, [49] Des Moines, Iowa 20-89 T,D,VFD 4.08 68

*T = tonometry, D = inspection of optic disc, VFD = detection of visual field defect by perimetry

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Table 2: Prevalence of glaucoma
Study and location	Age range of subjects, yr	Diagnostic methods*	Prevalence of glaucoma, %	% of subjects with normal IOP
Hollows et al, [44] Ferndale, Wales	55-70	T,D,VFD	0.47	35
Liebowitz et al, [46] Framingham, Mass.	52-85	T,VFD	1.43	53
Stromberg, [47] Skovde, Sweden	> 40	T,D,VFD	0.41	13
Stromberg, [47] Dalby, Sweden	> 40	T,D,VFD	0.86	62
Bankes et al, [48] Bedford, England	> 40	T,D,VFD	0.76	7
Armaly, [49] Des Moines, Iowa	20-89	T,D,VFD	4.08	68