Question
It’s a natural occurrence, a natural degeneration of lens fibres. The other causes of cataract could be things like oral steroids, for example, if a person is taking oral steroids for a long time they do get cataracts.
Trauma as well, people who get injuries, be it sports or construction or accidents also get lens-related opacity related to trauma.
People with ocular inflammation uveitis or allergic conjunctivitis also get cataracts. So, most of these conditions can cause cataracts.
During cataract surgery, it is indeed possible to correct astigmatism at the same time. The astigmatism correctable is the astigmatism that arises from the cornea, and this may be different from what you actually wear in your glasses or contacts. There are a few ways astigmatism can be corrected at the setting of a cataract surgery: 1) Sometimes, if the astigmatism power is low and astigmatism's direction is where the small incision for cataract surgery is, nothing else needs to be done. The usual cataract incision can already treat the low astigmatism.
Certainly, the most common cataract we see is what we call senile cataract or age-related cataract and these affect people above the age of 60. At the same time, there are certain people, even in babies and young adults, who get cataracts. These are usually rarer and more related to trauma or pre-existing conditions. Usually, the overwhelming majority of patients with cataract are of the age group above 60.
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