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==== 1967 (aged 21 years) ====

=== Responding Population ===

All eligible study members were contacted

|Provided information         |tbc|
|Cumulative total of deaths   |tbc|
|Cumulative permanent refusals|tbc|
|Temporarily living abroad    |tbc|
|Cumulative emigrated         |tbc|
|Failure to contact           |tbc|

=== Data collection ===

Postal questionnaire sent to parents of study member.

LHA do not hold this data+\\


=== Training for data collection ===

Not known\\


=== Contents ===

  * Use of glasses by parents and siblings of study member

=== Questionnaires ===

  * {{ questionnaires : 1967-Eyesight.pdf|Family study of eyesight }}