Helping You To Understand The Causes And Treatment Of Presbyopia
Presbyopia is a condition of the eye that usually afflicts people over the age of forty, in fact the term come from the ancient Greek words meaning “elderly eye”. It appears as blurred vision especially when reading, using a computer, or doing similar activities. You cannot prevent the onset of presbyopia, it is a fact of old age, but it can be treated.
If you have found yourself having to read a newspaper at arms length because the words all look fuzzy up close then your may be suffering from presbyopia. It may also result in headaches when concentrating on objects that are very close to the face, this is because of eye strain.
Presbyopia is not due to the same factors as astigmatism, farsightedness, or nearsightedness. These eye problems are caused by the shape of the eyeball as well as genetic problems, but presbyopia is thought to be caused by a thickening, and lack of flexibility, in the lens of the eye due to changes in the proteins that are present. Also it is believed that the muscle fibers that surround the lens loose a degree of their elasticity.
To treat presbyopia and correct the vision it is possible to use eyewear or undergo surgery. If you choose eyewear then you can be given bifocal lenses or progressive addition lenses.
Bifocal spectacles have two different strengths within the lens – the lower part has the greatest strength for close up work, while the main part will have a prescription for better distant vision. Progressive addition lenses differ from bifocal lenses in so much that they have more gradual transition form one prescription strength to the other.
Some people may choose just to wear reading glasses when they need to focus on any matter that is within an arms length. These are fine if the distant vision is not a problem. They can also be worn by people who wear contact lenses but also suffer with presbyopia.
As we all age it is likely that the deterioration in the eye’s lens will get worse over time. For this reason whatever eye wear is prescribed will have to be increased in strength every so often.
There are now also surgical options for people with presbyopia. There is what is known as Conductive Keratoplasty treatment which involves the use of radio waves to alter the curve of the cornea. Another option is LASIK surgery which again changes the shape of the cornea, but this time using laser pulses.
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