Eyesight After 40
November 28, 2009 by AMED
Filed under Uncategorized
Do you struggle to see clearly up close? you may have hyperopia. But it may also be presbyopia. Truth be told, they are both similar, but have different causes. Since they are different conditions, the treatment options will vary as well.
Farsightedness (hyperopia) occurs when light rays that enter the eye do not focus directly on the retina, in fact they would come to focus behind it. This is caused when the length of the eye itself is shorter than it should be. People can be affected by hyperopia at any age. Some childred will actually outgrow this condition, as they grow, so do their eyes. But if they don’t, eyeglasses or contact lenses can be used to treat hyperopia. In some cases some reading glasses can be of assistance. Lasik or other corrective surgeries may also be an available option.
Presbyopia, on the other hand, also causes one to have difficulty reading close up, but it is age-related, and affects people over 40. It is caused by the hardening of the lens inside the eye. The result is the same as hyperopia: poor near vision. Generally, this is treated with corrective lenses. reading glasses are commonly used to bring clarity to objects at near distances. Another option is to use contact lenses for monovision, when one eye is corrected for distance vision and the other corrected for near vision. Wearers then train themselves to use one eye for reading and the other eye for seeing things in the distance. Contact lenses can also be fit as progressive multifocals, similar to progressive channel eyeglasses.
Hyperopia only effects a smaller portion of the population and there are surgical options to correct it. Presbyopia will eventually effect us all, but until very recently was not treated with surgery. When the lens inside the eye loses its ability to flex and adjust focus, seeing up close is extremely difficult, that is when it is time for treatment. Though a couple surgical options are available for presbyopia, nothing beats the safe and affordable option of reading glasses. They are completely safe to wear and are very stylish as well. If losing your clear close vision due to presbyopia is a foregone conclusion, you may as well be fashionable when doing so.
An Advice For My Prescription Sunglasses
September 27, 2009 by AMED
Filed under Uncategorized
Sunglasses are very popular by different class of ages, even the best fashion brands have their own sunglasses offers… Why do you need prescription sunglasses?
Sunglasses work mainly as protective items and only secondly as decorations. Special vision problems prevent lots of people from being able to wear sunglasses, which makes them even more exposed to various other eye health problems. This is the case with anyone who suffers from myopia, astigmatism or hyperopia. Prescription sunglasses could be a solution for improving sight and protecting eyes from the action of the UV radiation at the same time. On the one hand the UVA rays get absorbed in the body through the eye lens, and on the other, the UVB rays cause skin burn.
Dark lens design and prescription lens structure represent a medical solution to create a product of sun protection eyewear type. There are different kinds of lenses used for prescription sunglasses, and here we can count polarized lenses, anti-reflective lenses, blue blockers, photochromic lenses and gradient lenses. Prescription sunglasses are designed only according to the ophthalmologist’s recommendations, and sometimes design is not possible because of the specificity of the eye problems. Total protection against the UVAs and the UVBs should be covered at optimal parameters, due to the fact that people with eye surgery should not be exposed to powerful radiation.
Wraparound designs could be a good solution for prescription sunglasses as you’ll also be protected at the sides of the eyes too. The frame makes such protection possible, because a too thin or small frame design will be insufficient. As for the glare, all quality sunglasses should incorporated the polarized coating for a superior protection of the eyes. The amount of light that enters the eyes could also be limited by using mirror-coated lenses. One special mention here is that the design of the prescription glasses also depends on the stage of the eye health condition.
It is sometimes difficult to create functional prescription sunglasses for advanced forms of myopia where the thickness of the lenses is very high. There are other situations when two or more health problems are present, as one person could suffer from both astigmatism and myopia, to give just an example. Solutions may be available, but only a specialist will be able to tell you which is the best for you. Moreover, price awareness is another important element given the fact that prescription sunglasses will always be more expensive, as the number of specialists who can design them is smaller too.


