This is caused by an uneven surface of the cornea.
<h3>What is an uneven cornea?</h3>
Astigmatism occurs when light enters the retina unevenly due to the irregular shape of the cornea.
This condition can cause distorted or blurry vision, headaches, eye strain, eye irritation, or squinting.
Astigmatism can be inherited or developed later in life. An irregular corneal surface is common and can be caused by a variety of factors, including genetic inheritance, injury, disease, or natural occurrences.
The epithelium, bowman's layer, stroma, descemets membrane, and endothelium, which is the innermost layer, comprise the cornea.
A treatment called cornea collagen crosslinking may stop the condition from getting worse. Or your doctor could implant a ring called an Intacs under the cornea's surface to flatten the cone shape and improve vision.
The hindus didn't change the caste system so its not a big difference because they didnt accomplish in changing the caste system. This was just a belief of the hindus im pretty sure