Astigmatism is a common vision condition that occurs when the cornea is irregularly shaped, resulting in blurred vision. It is caused by an imbalance in the curvature of the cornea and can occur in one or both eyes. Astigmatism can be present at birth and can develop as a result of various eye conditions.
The length of time astigmatism lasts varies from person to person and depends on the type and severity of the condition. In some cases, mild astigmatism does not require treatment and may not last very long, while more severe cases may need to be corrected with glasses, contact lenses, or laser eye surgery.
Those with mild astigmatism often experience better vision when the eye is not used for a certain period of time, such as when sleeping. This is because the eye muscles relax, allowing the cornea to return to its more normal, round shape. It is important to note, however, that astigmatism can return as soon as the eye muscles are used again.
In cases of more severe astigmatism, the condition can last for many years, and there is no definite answer as to how long it can last. Typically, astigmatism caused by an eye condition or injury can last for months or even years before it is corrected.
In conclusion, the length of time astigmatism lasts can vary greatly from person to person and depends on the type and severity of the condition. Mild astigmatism may not last very long, while more severe cases may require treatment to correct the condition.