Table 1.

Qualitative Sampling Scheme

Visual Impairment	Young-Old (50–64 years)		Middle-Old (65–74 years)		Old-Old (75 years or more)
	Men	Women	Men	Women	Men	Women
Low Vision	2	2	2	2	2	2
High Visual Impairment (economic blindness, social blindness or one eye blindness)	2	2	2	2	2	2
Total (24)	4	4	4	4	4	4