: Data-Field 5408

Data-Field 5408

Description:	Which eye(s) affected by amblyopia (lazy eye)
Category:	Assessment centre ⏵ Touchscreen ⏵ Health and medical history ⏵ Eyesight
	Health outcomes + Self-reported medical conditions

Participants

7,419

Categorical (single)

Both sexes

Jan 2012

8,671

Data

Defined (4)

Aug 2025

Complete

Primary

o1 s1

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Data

8,671 items of data are available, covering 7,419 participants, encoded using Data-Coding 100515.
Defined-instances run from 0 to 3, labelled using Instancing 2.

Graph illustrating main data

4 Instances

Instance 0 : Initial assessment visit (2006-2010) at which participants were recruited and consent given
4,034 participants, 4,034 items
Graph illustrating main data

Instance 1 : First repeat assessment visit (2012-13)
800 participants, 800 items
Graph illustrating main data

Instance 2 : Imaging visit (2014+)
3,191 participants, 3,191 items
Graph illustrating main data

Instance 3 : First repeat imaging visit (2019+)
646 participants, 646 items
Graph illustrating main data

Notes

ACE touchscreen question "Which eye(s) are affected by amblyopia (lazy eye)?"

Field 5408 was collected from participants who indicated they wear prescribed glasses or contact lenses to correct their amblyopia, as defined by their answers to Field 6147

1 Related Data-Field

Field ID	Description	Relationship
6147	Reason for glasses/contact lenses	Current Field was collected from participants who indicated they wear prescribed glasses or contact lenses to correct their amblyopia, as defined by their answers to Field 6147

2 Resources

Preview	Name	Res ID
	Screenshot from touchscreen questionnaire used to capture field 5408	100620
	Touchscreen questionnaire ordering, validation and dependencies	113241

2 Applications

Application ID	Title
669	Distribution and biological, environmental and lifestyle determinants of visual function and of refractive error in adults (aged 40 to 69 years) in the UK.
17435	Exploring the genetics of irritable bowel syndrome: the ?bellygenes? initiative (project approved by bbmri-lpc)

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