Visual Impairment Study

Variable Dictionary

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#	Variable	Label	Type	Measure	Missing	Values
01	AGE	Age of Participants	Scale	Numeric (8,0)	—	Continuous
02	GENDER	Gender of Participants	Nominal	Numeric (8,0)	—	{0=Male, 1=Female}
03	DIAGNOSIS	Visual Impairment Diagnosis	Ordinal	Numeric (8,0)	99	{1=Moderate, 2=…, 3=…}
04	DURATION	Duration of Vision Impairment	Ordinal	Numeric (8,0)	99	{1=<1 year, 2=…, 3=…}
05	COMFORTABLE	Comfortable During Use	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
06	easy_operate	Easy to Operate	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
07	navigation	Good Navigation	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
08	beep_audio	Adequate Beep Audio	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
09	object_detect	Ease of Object Detection	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
10	battery	Good Battery Timing	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
11	weight	Bearable Weight	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
12	affordability	Affordability	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
13	satisfaction	Overall Satisfaction	Nominal	Numeric (8,0)	99	{0=No, 1=Yes}
14	durationofuse	Duration of Use (minutes)	Scale	Numeric (8,0)	99	Continuous
15	ONSET	Onset of Disability	Nominal	Numeric (8,2)	—	{1=Congenital, …}
16	logmar	LogMAR Visual Acuity	Scale	Numeric (8,2)	—	Continuous
17	Indoor_cont	Obstacles with Contact Indoor	Scale	Numeric (8,2)	—	Continuous
18	Indoor_with	Obstacles without Contact Indoor	Scale	Numeric (8,2)	—	Continuous
19	indoor_missed	Obstacles Missed Indoor	Scale	Numeric (8,2)	—	Continuous
20	Indoor_time	Time Taken Indoor (seconds)	Scale	Numeric (8,2)	—	Continuous
21	outdoor_con	Obstacles with Contact Outdoor	Scale	Numeric (8,2)	—	Continuous
22	outdoor_wit	Obstacles without Contact Outdoor	Scale	Numeric (8,2)	—	Continuous
23	outdoor_mis	Obstacles Missed Outdoor	Scale	Numeric (8,2)	—	Continuous
24	Outdoor_time	Time Taken Outdoor (seconds)	Scale	Numeric (8,2)	—	Continuous