By banderas
 Presbyopia (reading blur) is a condition of the eyes in which close visual acuity is lost due to the stiffening of the lens and the ciliary muscle. (This is the circular muscle around the lens that causes it to change shape to see clearly at different distances.) Presbyopia describes the condition where the eye exhibits a progressively diminished ability to focus on near objects with age. It is also known as reading blur.
Presbyopia is caused by aging and symptoms are usually first noticed about the age of 40. Presbyopia is a natural process which causes difficulties reading small print. It can even cause eyestrain and blurred vision when changing your viewing distance. People who suffer from reading blur usually must hold their reading material at arms length to be able to read properly or they may feel fatigued or have a headache when performing near work, such as embroidery or handwriting.
The lens inside your eye is just losing its flexibility. Presbyopia just seem to occur suddenly but actually it is a process which lasts for years.
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By Allen Wright
 Lasik eye surgery has been around in Canada for decades, and in the past it was cheaper and generally considered safer to travel to one of the larger Canadian cities and schedule an appointment at a prominent lasik provider. One of the reasons the surgery was less expensive is because the industry was so much more mature than their US counterparts. Lasik has been a common practice in Canada for quite a long time, and there was a much greater supply of highly experienced lasik surgeons there. Following the laws of supply and demand, the supply was higher with the demand holding constant so experience was not as much of a price discriminator as it was or is in the United States.
Equipment cost was also less of an issue in Canada due to the maturity of the industry. It logically follows that part of lasik eye surgery cost structure is an amortization of the cost of the equipment over its useful life. Each procedure that the provider performs must pay a percentage of the total equipment cost, with |
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