• measure Physical characteristics

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_DHBQP YS_DHBQ14 YS_DHBQ16 YS_DHBQ18 YC_BS2
     
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    Physical characteristics of hair and eye color were assessed.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Glasses and Eye sight

    Study:Netherlands Twin Register
    Mode of collection: SelfAdministeredQuestionnaire
    Available measurements:
    Young Netherlands Twin Register  YS_5
     
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    Glasses and Eye sight assesses the wearing of glasses, far- or near-sightedness, amblyopia (lazy eye), and squinting since birth.
    Created October 17, 2024 • Updated October 20, 2024

  • measure Snellen Chart

    Study:Netherlands Twin Register
    Mode of collection: MeasurementsAndTests    Biological sample/measurement
    Available measurements:
    Young Netherlands Twin Register  YC_ADHMRI
     
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    A Snellen chart is an eye chart that can be used to measure visual acuity. The Snellen chart is printed with eleven lines of block letters. The first line consists of one very large letter, which may be one of several letters, for example E, H, or N. Subsequent rows have increasing numbers of letters that decrease in size. A person taking the test covers...
    Created October 17, 2024 • Updated October 20, 2024
You can also access this registry using the API (see API Docs).