I am currently 19 years old studying Business IT in Uni (so stare alot at computer screen), and am very short sighted. On my contact lenses (soft ones) it has: Left
SPH: -6.50, CYL: -1.25, AX: 180, BC: 8.5 Right
SPH: -6.00, CYL: -1.25, AX: 180, BC: 8.5
(not sure how this converts to using the '20/20' convention)
I own both contact lenses and glasses - and would like to know which is the better choice (if there is one) if I want to slow down/stop my myopia from getting worse.
When I first got contacts, i wore them pretty much all day (only took them off when i went to sleep) but then my optometrist told me I should let my eye 'breathe', so I got new glasses and wore them during weekends.
But then recently, I went to an eye specialist, and she told me that it is better to wear glasses (i believe they are weaker than my contacts) for close work and contacts for long/far away stuff eg driving, lectures etc.
She mentioned something about if the prescription is just right/too strong for your eyes, they will become 'lazy' and adjust to that prescription - therefore making short-sightedness worse.... But I have also heard it is bad to wear glasses that are not strong enough because it strains your eyes or something???
Also, in regards to contacts...I have also heard that it helps slow down short sightedness because since something is over ur eyes, your eyeball will not change shape, and therefore you will not get worse (or slower at least)
So, I was wondering...does anyone know the advantages/disadvantages of wearing glasses/contacts??
ps. also, does anyone know of ANYTHING that will slow down short sightedness?? eye exercises? walk away from comp/work every hour? don't read in the dark etc etc???
Wow. I think you've just about got it covered.
Way back in the 1960's I wore hard, non-gas permeable contacts for the purpose of slowing down my galloping myopia.
It seemed to work to some degree.
I too have heard all the conflicting opinions.
My prescription was like yours before my cataract surgery.
Now I'm farsighted.
Contacts definitely give you better vision if you don't have dry-eye problems.
But only without contacts can you enjoy the positive of nearsightedness: like being able to see the structure of a snowflake.
hmm, intersting...so the hard contacts you wore were specifically to slow down your myopia? would soft lenses have a smiliar effect? I'm currently wearing glasses all week (no contacts) - would you recommend me wear contacts say, every 2nd day or so?
Sorry I didn't respond earlier. You should talk it over with an ophthalmologist or even with an optometrist who has observed the slowing of nearsightedness when wearing contacts.
My father wore the hard ones back in the 70's and 80's too, and now he's 82 and doesn't need glasses except some drug store readers.
Go to Google and type in OrthoKertology. (See short summary below).
OrthoKeratology (Ortho K ) :
Ortho-K is a non-surgical process which reshapes (flattens) the cornea of the eye using contact lenses to reduce refractive errors. Accelerated Ortho-K uses reverse geometry contact lenses. Flattening the cornea reduces the focusing power of the eye. If the amount of corneal flattening is accurately controlled, it is possible to bring the eye into correct focus and compensate for myopia (nearsightedness). After the contact lens is removed, the cornea retains its flattened shape for part or all of the remainder of the day. A retainer lens must be used each day to maintain the corneal flattening, or the myopia will revert to the pre-treatment level. RGP (Rigid Gas Permermable) Lenses are used so as to provide Oxygen to the cornea. Only Optomertists who specialize in contact lenses have experience in this type of treatment.
yeah, i know a bit about Orth-K, my sister used it..but according to our optometrist i'm not suitable for it coz my myopia is too strong and my eye shape is unsuitable for it.
but that is sort of one reason why i'm wondering if there is much difference between contact/glasses (health-wise). Because orth-k are hard lenses, and are designed to 'mould' your eye back to normal...but would soft lenses prevent your eyes from distorting even more? or maybe they won't coz they are soft??
You are correct that soft lenses would not be able to "mold or flatten' the cornea as a firm RGP (Rigid Gas Permermable) can do with the Ortho-K treatment.
NIGHT & DAY soft contact lenses,by Ciba, are safe to wear 24 hours a day for up to 30 days. They are made from a silicone hydrogel material, considered by many to be the most significant advancement since soft contact lenses were introduced more than 30 years ago, that allows up to 6 times the oxygen to your eyes than conventional hydrogel contact lenses. Of course,it is important to have your eyes monitored on a 6 month basis by your Optometrist.
I think you are looking for the "right thing to do " for keeping your myopic eyes healthy. Glasses will not control the shape of your cornea, however,since you are an age where you have stopped growing, more than likely your myopia will begin to stabilized with glasses. RGP lenses will "hold" any myopic projection to a minimun. The silicon lenses are very healthy (with proper care),and they provide the most oxygen to your corneas.
So there you have it. Glasses vs Contacts. Either way your myopic eyes can stay healthy. It's up to you and regular,routine care from your Optometrist.
wasabi, My eyesight was almost identical to yours before my cataract surgery last summer. When you have a strong prescription, contac lenses will give you better vision in terms of side vision and making your sight close to natural good eyesight. I gave up contacs, though, in the 70's because of severe dry eyes. I always wonder if wearing the contacs contributed to the dry eye problem, or if it was just part of the natural aging process in combination with genetic tendencies.
eyestwo22 is correct in that at your age the nearsigtedness should slow down on its own.
One thing, though, about contacs: Two of my grown daughters wear contacs, and all of the optometrists they've seen (and I've seen) advise against sleeping in contacs, even the ones that are supposed to be okay to leave in for weeks at a time. They have said that it's okay to do that on occasion, but not good to do regularly.