moose said:
moose said:
Do you find yourself tipping your chin up all the time or do you squint alot?moose said:
Wow, that's a neat trick. I didn't know you could make lenses go blind. Wouldn't it be better if they made you lenses that were able to see?cyrusabdollahi said:I was walking around the mall for an hour while they made my lenses blind as a bat.
mattmns said:Geeze! You ever hear of self-control
Yep, apparently your mom was right that it would make you go blind! Well, if it's the guys you want to offer a hand, okay, I'll stay out of the way.cyrusabdollahi said:
Oh, I'm sure he'd be willing to lend a hand if you need it.cyrusabdollahi said:Oh god, I better run and hide from Arildno now...
Moonbear said:Wow, that's a neat trick. I didn't know you could make lenses go blind. Wouldn't it be better if they made you lenses that were able to see?
my side hurts.cyrusabdollahi said:
)Hyperopic people(those who require + lenses) are able to http://hyperphysics.phy-astr.gsu.edu/hbase/vision/accom.html" to see clearly. Many hyperopes can get out of glasses in their early teens but go back into them in their 40's when the ability to accommodate naturally declines. At that time you may find it difficult to see at distance and near without correction.fargoth said:I currently (checked two years ago... so its a bit stretching the term...) got 12 in one eye, and 11.5 in the second one if i recall correctly... and i stopped wearing glasses when i was about 12 years old - at that time the numbers were 6 and 5.5 (and they made my eyes look sooo big
I was able to train my eyes to see with no glasses, i can read small letters with no effort (unless I am tired - then i can't read small letters, especially not in dim light).
My father has 3 for each eye, and i can see way better then he does - even when he has his glasses on.
I am able to put any convex lens (plus sign) and see well with it too as long as it's focal length isn't smaller then 1/12.
fargoth said:I currently (checked two years ago... so its a bit stretching the term...) got 12 in one eye, and 11.5 in the second one if i recall correctly... and i stopped wearing glasses when i was about 12 years old - at that time the numbers were 6 and 5.5 (and they made my eyes look sooo big
I was able to train my eyes to see with no glasses, i can read small letters with no effort (unless I am tired - then i can't read small letters, especially not in dim light).
My father has 3 for each eye, and i can see way better then he does - even when he has his glasses on.
I am able to put any convex lense (plus sign) and see well with it too as long as it's focal length isn't smaller then 1/12.
He is "farsighted" you are "nearsighted" he can accommodate to clear his vision. You could "train" your eyes until the cows come home and never get in focus at distance. My previous post explains in more detail.cyrusabdollahi said:
larkspur said:
Yes, you could get Lasik at some point. When you stop growing your eyes should stop changing. Most people's refractions don't change much after 22 years of age. If you are still changing by large amounts after that then you need to be sure to have a cycloplegic refraction to make sure you are wearing the correct Rx in the first place. If you go to an optometrist (O.D.) rather than an ophthalmologist(M.D.) you will have to request this as it is not routine for optometrists to do this.cyrusabdollahi said:
No that is not a very big change.cyrusabdollahi said:
Actually, -3.00 is just average. If you were higher than -5.00 then you could be at risk for retinal detachment and should have dilated fundus exam every year.cyrusabdollahi said:
Most of the time it can be repaired. Early detection is the key to successful treatment. The symptoms are usaually seeing flashes of light or a shower of floaters( a lot of little black dots). Some people see a curtain or veil across their vision. Here is a quote from http://www.theretinasource.com/conditions/retinal_detachment.htm"cyrusabdollahi said:
Actually, the opposite is true, people with myopia (nearsightedness) can read up close without glasses, however as you age, the ability to focus decreases and people who could once read things up close now find they need corrective lenses to read. Bless Benjamin Franklin for the bifocal lense.larkspur said:
Nope, nearsighted people are naturally in focus without glasses at near hence the term "nearsighted". Depending on the amount of myopia, as a myopic person ages they will either need bifocals to read with their glasses on or they will need to take the glasses off to read. A person with a -3.00 Rx is naturally in focus(without glasses) at 1/3 meter in front of the eye. While they are wearing their glasses they are essentially emmetropic and if they are also presbyopic they will need bifocals to read. When they take their glasses off they have the same result as if they had placed a +3.00 lens(reading glasses) in front of the their own glasses.Evo said:Actually, the opposite is true, people with myopia (nearsightedness) can read up close without glasses, however as you age, the ability to focus decreases and people who could once read things up close now find they need corrective lenses to read. Bless Benjamin Franklin for the bifocal lense.
Yes, I'm nearsighted. However, as you age, a nearsighted person loses the ability to read up close.larkspur said:
Exactly, they lose their ability to read up close.
They become presbyopic.Depends on how much nearsightedness you have. If you only have -1.00 diopter then your natural point of focus would be at one meter and anything closer to you would require accommodation to focus. If you have lost all your accommodative abilities(completely presbyopic) then you would require reading glasses or hold the object 1 meter away from you to see it. This is further than most peoples arms can reach. If you have -2.00 diopters of myopia then it will need to be at 1/2m, -3.00 at 1/3 m etc. The higher the amount of myopia the closer you can hold the object to view it without accommodation or glasses.Evo said:Yes, I'm nearsighted. However, as you age, a nearsighted person loses the ability to read up close.
Exactly, they lose their ability to read up close.
I've never seen a case where this was true, although it might be possible. Do you know of any cases where a person's eyesight improved with age? You yourself agreed that people with myopia need corrective lenses for near vision as they get older.larkspur said:
In a child with ,small to moderate amounts of hyperopia, as the eye grows larger the refractive error can go away completely. However, with myopia the opposite occurs. As the eye grows larger so does the refractive error. Later in life, when cataracts develop, the refractive error can change quite a bit but mostly this change is for the worse. I personally have never seen a fully grown adult get out of glasses without surgical intervention.Evo said:
Do you have any astigmatism?
OUCH since then I have been through numerous surgeries and am very fortunate to not be blind. If it weren't for the great docs at the University of Utah childrens hospital I would probably be in that situation.First off, you've already found out about presbyopia, so you know why close-range vision is deteriorating. The reason that you can see better with more light is that the more light you have reflecting off a page (for instance, if you're reading a book), the smaller your pupils get, and that sharpens your vision. When your pupils are dilated, your eyes' optical flaws are exaggerated. I found out when I was a child (an old man told me) that if there was enough light and I had difficulty seeing something, I could get a sharper view by rolling my index finger into a circle and peering through the tiny gap in the center. Try it. Though I am nearsighted, I can clearly see the leaves on the trees across the road (75' or so) and though I have a problem reading print at less than about a foot (presbyopia) I can read fine print at a distance of less than 3" - all by peeking through the gap in my index finger. Since it's not a round aperture, some distortion is induced, but if you're into that kind of perfection, you can use a hot pin to poke a hole in one of your credit cards and tuck it back in your purse. People are going to look at you funny if you're trying to look up a number in a phone directory with a credit card held up to your eye, but if you have misplaced or broken your glasses...it'll get you out of a jam.Evo said:Not only do I find that I can no longer see clearly at close range, but I now need more light in order to see things clearly at close range. Here we go, wikipedia, the quick answer.
I'm going to have to try that, ever since the Evo Child broke my tri-focalsturbo-1 said:
I've been dealing with my old single vision lenses and they're making me crazy.Yes, you are very lucky and you must have great parents that did what the doctors recommended.matthew baird said:I am -4.50 in my right eye and -8.00 in my left eye. When I was 2.5yrs old I was stabbed with an exacto knife in the eye!
How about a pair of these?Evo said:I'm going to have to try that, ever since the Evo Child broke my tri-focals
If you have every photographed through a pinhole aperture (I have one for my OM-1) you will know that the images are "soft". You will not have great visual acuity with pinhole sunglasses, just a bit better than with no correction at all. If you already see well with no corrective lenses, looking through pinhole sunglasses will give you less visual acuity, not more.fargoth said:
fargoth said:
