Most astigmatic corneas have two types of curves. Curve is considered to be a steep curve and flat curve. Both types of corneal curve of the eye caused by the presence of multi-point focus. For this reason, astigmatism may be near and distance vision blurred. Astigmatism often occurs along with myopia or hyperopia. There are two common types of astigmatism. When the cornea has a distorted shape, it is called corneal astigmatism. When the lens is distorted, known as the grating astigmatism. Either type of astigmatism can cause blurred vision.
Can detect and measure astigmatism, corneal topography, corneal astigmatism, vision testing and refraction. Astigmatism usually remains the same, neither improve nor deteriorate over time. Astigmatism can be corrected glasses, contacts, or a variety of surgical procedures. The most common surgical correction of astigmatism keratotomy and LASIK. These procedures reshape the cornea to make it more spherical.
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