Coloured Contact Lenses

Do you have trouble seeing up close? it is possible you have hyperopia. But it could also be presbyopia. The truth is they are similar optically but have very different causes. Because they are foundationally different, their treatment options will also vary.

Hyperopia occurs when the light that enters the eye can not focus on the retina, because the eye is to short, the light actually would focus behind the eye. This is caused when the eyeball is shorter than it should be. Hyperopia, similar to myopia, can occur at any age. Some childred will actually outgrow this condition, as they grow, so do their eyes. But if they do not, corrective lenses such as contacts of eyeglasses can be used to treat hyperopia. For low power hyperopes a set of reading glasses can correct vision. Corrective laser surgery is also an available solution.

On the other hand, presbyopia also causes people to have diffculty seeing at near, but is age related. It is caused by the lens inside the eye losing flexibility. The result is the same as hyperopia: poor near vision. In general, corrective lenses are used to fix this. reading eyeglasses , used to clarify objects up close such as text or computer screens, are commonly used. Another choice is contact lenses to produce monovision, when one lens corrects the distance vision, if needed, and the other lens corrects the near vision. Monivision users have to train themselves to see through this new optical system. Contact lenses come in a multifocal variety, correcting vision similar to progressive eyeglasses.

Hyperopia only effects some and it is possible to treat it with surgery. the condition of presbyopia is inevitable, and until recently, was not generally 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 surgery for presbyopia has become available, the overwhelming majority of sufferers still choose the option of wearing reading glasses. They are safe, they do not require an invasive procedure, and they are stylish. If you are suffering from presbyopia and you need to wear readers, you may as well find a pair that looks good too.

Sunglasses are very popular by each and every ages, even the most popular fashion brands have their own sunglasses offers… What are the 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.

Prescription sunglasses represent a combination of regular glasses with a dark lens design. 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. It is important to mention here, before going on with the description of prescription sunglasses, that you can only order this kind of eyewear based on an ophthalmologist’s recommendation and after careful medical examination. Some health condition such as eye surgery may require total prevention of sun exposure. This is why most often doctors prescribe sunglasses with  99 or 100% protection against UVA and UVB.

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 anti-reflective properties, all quality sunglasses should incorporated the polarized coating for a superior protection of the eyes. Mirror-coated lenses are sometimes used for the same purpose of reducing glare. The stage of the eye condition will also have an influence on the design of the prescription sunglasses.

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. The doctor should be able to recommend an adequate course of action, with the mention that the design of highly specialized prescription sunglasses is more difficult. Very few companies can provide such designs for low prices; the more complex the prescription sunglasses, the higher the price.