effects of high degree myopia

Discussion in 'Optometry Archives' started by Hetal, Jan 16, 2004.

  1. Hetal

    Hetal Guest

    Hey experts,

    I have a friend who has 8.5D in both eyes and is of age 24 and am
    kinda worried about its long term effects.

    I wanted to know what the future effects of high degree myopia are and
    if corrected through lasik surgery, whether myopia's adverse effects
    could still be seen in the future.

    What is the possibility of any adverse effect like sight loss ?
    Is high Myopia heriditery ?
    What are its effects in old age ?

    Any information from personal experience or professional practice
    would really help making some important decisions.

    thanks a lot ...
    Hetal, Jan 16, 2004
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  2. Hetal

    Dr Judy Guest

    Higher myopia is associated with or is a risk factor for, a number of eye
    conditions like peripheral retinal degeneration, retinal detachment and
    glaucoma. The risk is low and most high myopes do not get these problems.

    Note that "associated with" and "risk factor for" does not imply that myopia
    is a cause of those conditions, only that whatever process causes those
    conditions may also cause myopia. Think of myopia being like the canary in
    a coal mine; the dangerous gases that cause mine explosions cause the canary
    to get sick or die. So a dead canary would be associated with mine
    explosion, but the canary does not cause the explosion.

    Refractive surgery is a substitute for glasses and does not alter the risk
    associate with high myopia. As far as risk goes, a myope after refractive
    surgery has the same risk as before.
    Myopia does not usually cause sight loss.
    Most people think so.
    Old myopic eyes are about the same as old non myopic eyes.
    Dr Judy, Jan 17, 2004
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  3. I certainly am not an expert on these matters. I would, however, expect that
    changing of eyeball shape toward being more ellipsoidal, will put stress on
    retinal tissue as it stretches. Can the retina adjust to such changes?
    Moreover, the more spherical a pressure vessel is, and an eye is a pressure
    vessel, the more likely stress will not be directed entirely along the
    surface. That will put flexing stress onto various tissues forming the eye's
    envelope. What effect would that have on delaminating the various layers?

    Repeating Rifle, Jan 17, 2004
  4. Hetal

    Otis Brown Guest

    (Hetal) wrote in message
    Dear Patel,

    Depends on who is the "expert".

    I am an engineer, who is interested in strictly
    the prevention of nearsightedness, because I wanted
    to document some fact concerning the eye's dynamic
    behavior. I wrote a book about that academic

    Even more so I was interested in assisting my
    sister's children in avoiding nearsightedness by
    prevention -- so they could avoid becomming
    -5, -7, and -9 diopter myopic.

    From all this research, I found a ophthalmologist
    who published a paper demonstrating that the
    rate of detached retina's is linerly related
    to the degree of myopia. (Please do not say "cause.)
    It is just a mathematical relationship.
    For myopia of greater-than -6 diopters, the
    rate is about 1 in 1,000.

    The development of a detached retina 50 years ago
    led to blindness. Now, if caught early, it
    can be "stiched" back in place with a lazer.

    You should learn the overt symptons, and have
    your retina checked by your OD or MD.
    Normally, you start getting a detached retina
    over the age of 30. I got mine at age 50.

    Please remember, these are my opinions as
    an engineer. I am not an MD.

    Check with your own MD or OD for further



    Otis Brown, Jan 17, 2004
  5. Hetal

    Dr Judy Guest

    Yes, the stress of being stretched increases the risk of retinal detachment
    and that is why myopia is a risk factor for retinal problems.

    You should remember that not all high myopia is due to a long, stretched eye
    and not all long stretched eyes are myopic.

    Dr Judy
    Dr Judy, Jan 17, 2004
  6. 8.5 is not so high, I have many people who are recovering practicing
    rest methods.
    do you think lasik can correct myopia? You are wrong!
    any side effect is possible.
    what is the effect of misery in old age?
    Please visit
    and you can buy a replica of the Original Dr. Bates book
    "Perfect Sight Without Glasses"
    and if you are interested, join the group
    Rishi Giovanni Gatti, Jan 19, 2004

  7. What was you worst prescription for your myopia and when?
    Rishi Giovanni Gatti, Jan 19, 2004
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