How Does Our Eye Works and How Eye Color Affects Eyesight?

Discussion in 'Eye-Care' started by abed.rc@gmail.com, Sep 23, 2007.

  1. Guest

    please help me !!!!!
     
    , Sep 23, 2007
    #1
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  2. Guest

    you've got to be kidding! you expect someone to write a brief
    paragraph on "how our eye works"? You are just going to have to do
    some reading and studying for yourself. It's a little complicated and
    the information is very accessible. good luck.

    PS -- eye color (=iris color) has virtually nothing to do with how the
    eye functions. its kind of like skin color-- no matter how dark or
    light a human's complexion is, their body works the same as everyone
    elses.
     
    , Sep 23, 2007
    #2
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  3. Zetsu Guest

    Well skin colour affects how your body works because if you are a
    light colour then you might be more succeptible to skin burning.
     
    Zetsu, Sep 23, 2007
    #3
  4. Zetsu Guest

    Hello,
    The eyes detect light, and then the light get interpreted in the mind.
    The working of the eye has been studied; but less is known of the
    mind.
    You can read the big descriptions in medical journals and whatnot.
    But if you are lazy and can't be bothered for that, just read a round
    the various internet sites, e.g. wikipedia, and other encyclopedias.
    If you keep reading through the encyclopedias you'll become a master
    of the working of the eyes, but you have to study it and even that
    takes quite long. If you are casually learning, then it might take you
    a month. If you want to know everything that is currently known, that
    will take longer, say: a year or two.
     
    Zetsu, Sep 23, 2007
    #4
  5. Zetsu Guest

    Hi Mike,

    I was talking about skin colour, because that was the wrong analogy
    used by the other poster, remember. I was pointing out why that
    analogy is not correct.
    Oh okay, what about hazel colour?

    Also, if you were contact lenses to change your colour, does that mean
    that the subjective light sensitivity changes too?

    Also, what happens if you have greater light sensitivity?
    Does it means you can see better in the less light?

    Or would the difference not be noticable?
     
    Zetsu, Sep 23, 2007
    #5
  6. Guest

    my analogy was meant from a "50,000 foot view". meaning that in a
    very general sense, eye color has nothing to do with how the
    photoreceptors absorb light, transduce the signal and process it
    through various nerve cells, and send it to the brain for even higher
    image processing and interaction with other conscious processes.

    of course in a detailed sense there are indeed some effects of iris
    color but that is not the level of discussion the original poster is
    wanting. and as far as the analogy to skin color, it still seems
    pretty appropriate since skin color does indeed cause small
    differences in the physiology of the human body but not in the overall
    mechanisms of respiration, circulation, locomotion, etc.

    the reader needs to do some studying on his own, and I would say that
    more than a year or two is required to "know everything". i've been
    researching and working in the field for 25+ years and I don't know
    everything. neither does anyone else.
     
    , Sep 24, 2007
    #6
  7. Zetsu Guest

    Hello,

    Well I don't mean know everything, like everything there is, I just
    mean everything that's been found it in the field. Of course it is
    impossible to know everything! No one can know everything, lots of
    research needs to be done first. Also I agree the reader needs to do
    some studying on his own, but it seemed he was just looking for a
    general idea; so he should go on the encyclopedias which will give him
    the general ideas. Do you know what I mean though?
    Malignant melanoma can cause DEATH though!
     
    Zetsu, Sep 24, 2007
    #7
  8. Neil Brooks Guest

    Sorry. Rishi Giovanni Gatti (Zetsu), Lena102938, and Otis Brown are
    trolls who haunt s.m.v.

    Rishi has published, and is trying to sell worthless books.

    Otis is pathologically dishonest and actually hurts people.
    Following his advice can induce double vision in those
    not working closely with an eye doctor.

    Lena102938 uses anti-eye doctor rhetoric as a substitute for ANY
    actual information. It seems she now has to wear glasses and has
    developed a pathological (and ILLOGICAL) resentment toward the
    industry that "foisted these glasses upon her."

    You'd do well to ignore them and wait for responses from the
    caring, compassionate eye doctors who DO also participate in this site.
     
    Neil Brooks, Sep 24, 2007
    #8
  9. Father Mike Guest

    I smell a homework assignment!
     
    Father Mike, Sep 25, 2007
    #9
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