What Is Astigmatism? : What Is a Moderate Astigmatism?

Astigmatism is a condition of the human eye which causes either blurred vision or a sense that each eye is seeing objects slightly differently. Sometimes astigmatism can be detected by an individual if he covers one eye to look at an object, and then changes to cover the other eye. By switching back and forth between covering each eye while looking at the single object or in one direction, it will become apparent with astigmatism that the object seems to move, as though each eye is seeing it in a slightly different location.

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