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  • 8/14/2019 Project in Integ Science

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  • 8/14/2019 Project in Integ Science

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    I.BACKGROUND OF THE STUDYNight vision is the ability to see in a dark environment. Whether bybiological or technological means, night vision is made possible bya combination of two approaches: sufficient spectral range, andsufficient intensity range. Humans have poor night vision comparedto many animals, in part because the human eye lacks a tapetumlucidum

    In biological night vision, molecules ofrhodopsin in the rods of theeye undergo a change in shape as light is absorbed by them.Rhodopsin is the chemical that allows night-vision, and is

    extremely sensitive to light. Exposed to white light, the pigmentimmediately bleaches, and it takes about 30 minutes to regeneratefully, but most of the adaptation occurs within the first five or tenminutes in the dark. Rhodopsin in the human rods is insensitive tothe longer red wavelengths of light, so many people use red lightto preserve night vision as it will not deplete the eyes rhodopsinstores in the rods and instead is viewed by the cones.

    Many animals have a tissue layer called the tapetum lucidum in theback of the eye that reflects light back through the retina,

    increasing the amount of light available for it to capture. This isfound in many nocturnal animals and some deep sea animals, andis the cause ofeyeshine. Humans do not have a tapetum lucidumand, moreover, only 10% of the light that enters the human eyefalls on photosensitive parts of the retina.[citation needed] An animalsability to see in low light levels may be similar to what humans seewhen using first or perhaps second generation imageintensifiers[citation needed].

    Large size of the eye, and large size of the pupil relative to the eye,

    also contribute to night vision.

    II. Problem of the StudyThis study was conducted to answer the problem:What factors affect the night visibility of a human being?

    III. Hypothesis of the Study

    http://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Rhodopsinhttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Adaptation_(eye)http://en.wikipedia.org/wiki/Wavelengthshttp://en.wikipedia.org/wiki/Rod_cellhttp://en.wikipedia.org/wiki/Cone_cellhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Nocturnalhttp://en.wikipedia.org/wiki/Deep_seahttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Low_lighthttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Rhodopsinhttp://en.wikipedia.org/wiki/Rhodopsinhttp://en.wikipedia.org/wiki/Rhodopsinhttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Adaptation_(eye)http://en.wikipedia.org/wiki/Adaptation_(eye)http://en.wikipedia.org/wiki/Adaptation_(eye)http://en.wikipedia.org/wiki/Wavelengthshttp://en.wikipedia.org/wiki/Wavelengthshttp://en.wikipedia.org/wiki/Wavelengthshttp://en.wikipedia.org/wiki/Rod_cellhttp://en.wikipedia.org/wiki/Rod_cellhttp://en.wikipedia.org/wiki/Rod_cellhttp://en.wikipedia.org/wiki/Cone_cellhttp://en.wikipedia.org/wiki/Cone_cellhttp://en.wikipedia.org/wiki/Cone_cellhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Eyehttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Nocturnalhttp://en.wikipedia.org/wiki/Nocturnalhttp://en.wikipedia.org/wiki/Nocturnalhttp://en.wikipedia.org/wiki/Deep_seahttp://en.wikipedia.org/wiki/Deep_seahttp://en.wikipedia.org/wiki/Deep_seahttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Retinahttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Low_lighthttp://en.wikipedia.org/wiki/Low_lighthttp://en.wikipedia.org/wiki/Low_lighthttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Image_intensifierhttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Wikipedia:Citation_neededhttp://en.wikipedia.org/wiki/Tapetum_lucidumhttp://en.wikipedia.org/wiki/Tapetum_lucidum
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    5. Record how many he/she got right and wrong. This will bedone to each of the volunteer and it must be done afteranother.

    VII. SUMMARY OF RESULTS

    The volunteers can adapt more easily to the darker situation. Ittakes about 15-30 minutes for most of them.

    Based on the result of experiment conducted, I therefore concludethat younger people have better visibility in the dark even if theireyes were covered for a long period of time.

    Covering the eye of an older person for a long period of timereduces their visibility in the dark because they hAve lessadaptability to the situation.

  • 8/14/2019 Project in Integ Science

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    RESULTSName of test subject age Total correct picks

    Camille Amparo Torrento 3 yrs old 32

    Emilio Tayhopon III 3 yrs old 32

    Charles Eugene Torrento 5 yrs old 31

    Raymund Cajilig 16 yrs old 33

    Mary Bernadette Torrento 22 yrs old 32

    Joeremie Torrento 27 yrs old 32

    Mario Warlito Torrento 37 yrs old 31

    Raymond Tabobo 45 yrs old 29

    Bernadette Torrento 63 yrs old 22

    Warlito Torrento 64 yrs old 24

    Chart

  • 8/14/2019 Project in Integ Science

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    Name:

    Camille Amparo Torrento

    Age:

    3 yrs. old

    RESULTS

    Time

    the eye

    was

    covered

    cu

    p

    deodora

    nt

    alcoh

    ol

    whiteboa

    rd

    marker

    spoo

    n

    f

    or

    k

    sciss

    ors

    P5.0

    0

    coin

    sauc

    er

    g

    las

    s

    Total

    corre

    ct

    picksUncove

    red

    X X X X X 5

    15 min X X X 7

    30 min 10

    45 min 10

    CHART

  • 8/14/2019 Project in Integ Science

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    Name:

    Charles Eugene Torrento

    Age:

    5 yrs. oldRESULT

    Time the

    eye was

    covered

    cu

    p

    deodora

    nt

    alcoh

    ol

    whiteboar

    d marker

    spoo

    n

    f

    ork

    scisso

    rs

    P5.0

    0

    coin

    sauc

    er

    g

    las

    s

    Total

    corre

    ct

    picksUncove

    red

    X X X X X 5

    15 min X X X 7

    30 min X 9

    45 min 10

    CHART

    Name:

    Emilio Tayhopon III

    Age:

    3 yrs. oldRESULTS

    Time the

    eye was

    covered

    cu

    p

    deodora

    nt

    alcoh

    ol

    whiteboar

    d marker

    spoo

    n

    f

    ork

    scisso

    rs

    P5.0

    0

    coin

    sauc

    er

    g

    lass

    Total

    corre

    ct

  • 8/14/2019 Project in Integ Science

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    picks

    Uncove

    red

    X X X X X 5

    15 min X X 8

    30 min X 9

    45 min 10

    CHART

    Name:

    Joeremie Torrento

    Age:

    27 yrs. oldRESULTS

    Ti

    me

    the

    ey

    e

    wa

    s

    co

    ver

    ed

    c

    u

    p

    de

    od

    or

    an

    t

    al

    c

    o

    h

    ol

    w

    hit

    ebo

    ard

    ma

    rke

    r

    s

    p

    o

    o

    n

    f

    o

    r

    k

    s

    ci

    s

    s

    o

    rs

    P

    5

    .

    0

    0

    c

    o

    i

    n

    s

    a

    u

    c

    e

    r

    g

    l

    a

    s

    s

    T

    o

    t

    al

    c

    o

    rr

    e

    c

    t

    p

    ic

    k

    s

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    Uncove

    red

    X

    X

    X X X X 6

    15 min X X 8

    30 min X 9

    45 min X 9

    CHART

    Name:

    Bernadette Torrento

    Age:

    63 yrs. old

    RESULTS

    Time

    the eye

    wascovered

    cu

    p

    deodora

    nt

    alcoh

    ol

    whiteboa

    rd

    marker

    spoo

    n

    f

    or

    k

    sciss

    ors

    P5.0

    0

    coin

    sauc

    er

    g

    las

    s

    Total

    corre

    ctpicks

    Uncove

    red

    X

    X X X X X X 3

    15 min X X X X 6

    30 min X X X X 6

    45 min X X X 7

  • 8/14/2019 Project in Integ Science

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    CHART

    Name:

    Warlito Torrento

    Age:

    64 yrs. old

    RESULTS

    Time

    the eye

    was

    covered

    cu

    p

    deodor

    ant

    alcoh

    ol

    whiteboa

    rd

    marker

    spoo

    n

    f

    or

    k

    sciss

    ors

    P

    5.0

    0

    coin

    sauc

    er

    g

    las

    s

    Total

    corre

    ct

    picksUncove

    red

    X

    X

    X X X X X 3

    15 min X X X 7

    30 min X X X X 6

    45 min X X 8

    CHART

  • 8/14/2019 Project in Integ Science

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    Name:

    Mary Bernadette Torrento

    Age:

    22 yrs. old

    RESULTS

    Timethe eye

    was

    covered

    cup deodorant alcohol whiteboard

    marker

    spoon for

    k

    scissors P5.0

    0

    coin

    saucer glas

    s

    Totalcorre

    ct

    picksUncove

    red

    X X X X 6

    15 min X X 8

    30 min X 9

    45 min X 9

    CHART

  • 8/14/2019 Project in Integ Science

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    Name:

    Raymund Cajilig

    Age:

    16 yrs. old

    RESULTS

    Time

    the eye

    was

    covered

    cu

    p

    deodor

    ant

    alcoh

    ol

    whiteboa

    rd

    marker

    spoo

    n

    f

    or

    k

    sciss

    ors

    P

    5.0

    0

    coin

    sauc

    er

    g

    las

    s

    Total

    corre

    ct

    picksUncove

    red

    X X X 7

    15 min X X 8

    30 min X 9

    45 min X 9

    CHART

  • 8/14/2019 Project in Integ Science

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    Name:

    Mario Warlito Torrento

    Age:

    37 yrs. old

    RESULTS

    Time

    the eye

    wascovered

    cu

    p

    deodor

    ant

    alcoh

    ol

    whiteboa

    rd

    marker

    spoo

    n

    f

    or

    k

    sciss

    ors

    P

    5.0

    0coin

    sauc

    er

    g

    las

    s

    Total

    corre

    ctpicksUncove

    red

    X X X X 6

    15 min X X 8

    30 min X 9

    45 min X X 8

    CHART

  • 8/14/2019 Project in Integ Science

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    Name:

    Raymond Tabobo

    Age:

    45 yrs old

    RESULTS

    Time

    the eyewas

    covered

    cu

    p

    deodor

    ant

    alcoh

    ol

    whiteboa

    rdmarker

    spoo

    n

    f

    ork

    sciss

    ors

    P

    5.00

    coin

    sauc

    er

    g

    lass

    Total

    correct

    picksUncove

    red

    X X X X X 5

    15 min X X X 7

    30 min X 9

    45 min X X 8

    CHART