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  2. Snellen chart - Wikipedia

    en.wikipedia.org/wiki/Snellen_chart

    Snellen chart. Purpose. Snellen chart is used to estimate visual acuity (last three rows are 20/15, 20/13 and 20/10) A Snellen chart is an eye chart that can be used to measure visual acuity. Snellen charts are named after the Dutch ophthalmologist Herman Snellen who developed the chart in 1862 as a measurement tool for the acuity formula ...

  3. Childhood development of fine motor skills - Wikipedia

    en.wikipedia.org/wiki/Childhood_development_of...

    Fine motor skills are the coordination of small muscle movements which occur e.g., in the fingers, usually in coordination with the eyes. In application to motor skills of hands (and fingers) the term dexterity is commonly used. The term 'dexterity' is defined by Latash and Turrey (1996) as a 'harmony in movements' (p. 20).

  4. Fine motor skill - Wikipedia

    en.wikipedia.org/wiki/Fine_motor_skill

    Fine motor skill (or dexterity) is the coordination of small muscles in movement with the eyes, hands and fingers. The complex levels of manual dexterity that humans exhibit can be related to the nervous system. Fine motor skills aid in the growth of intelligence and develop continuously throughout the stages of human development .

  5. Sloan letters - Wikipedia

    en.wikipedia.org/wiki/Sloan_letters

    Sloan letters, designed by Louise Sloan in 1959, are a set of optotypes used to test visual acuity generally used in Snellen charts and logMAR charts. This set of optotypes consists of ten specially formed "letters", C, D, H, K, N, O, R, S, V and Z. [1] These letters, unlike the ones used in older Snellen charts, are designed to give acuity ...

  6. Hand washing - Wikipedia

    en.wikipedia.org/wiki/Hand_washing

    Hand washing. Hand washing (or handwashing ), also known as hand hygiene, is the act of cleaning one's hands with soap or handwash and water to remove viruses / bacteria / microorganisms, dirt, grease, and other harmful or unwanted substances stuck to the hands. Drying of the washed hands is part of the process as wet and moist hands are more ...

  7. Preschool - Wikipedia

    en.wikipedia.org/wiki/Preschool

    t. e. A preschool (sometimes spelled as pre school or pre-school ), also known as nursery school, pre-primary school, play school or creche, is an educational establishment or learning space offering early childhood education to children before they begin compulsory education at primary school.

  8. Child development - Wikipedia

    en.wikipedia.org/wiki/Child_development

    High income children tend to be cared for in a child care setting or in home care such as with a nanny. If the mother is highly educated, this can be a disadvantage to the child. [213] Even with quality of care controlled for, studies still found that full-time work within the first year was correlated with negative effects on child development ...

  9. Eye chart - Wikipedia

    en.wikipedia.org/wiki/Eye_chart

    Landolt C. Lea test. logMAR chart. An eye chart is a chart used to measure visual acuity comprising lines of optotypes in ranges of sizes. Optotypes are the letters or symbols shown on an eye chart. [ 1] Eye charts are often used by health care professionals, such as optometrists, physicians and nurses, to screen persons for vision impairment.

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