Why would a doctor suggest converging lenses to correct a patient’s vision? the patient’s eyes focus the image in front of the retina. the patient’s eyes are too short. the patient sees distant things blurry. the patient’s eyes have oddly shaped corneas.

The patient’s eyes are too short.

Explanation:

A person can focus clearly on objects both near and far that means a person's vision is normal.

But when a person cannot focus clearly on objects both near and far then it means that the person is suffering from two defects.

(I) Long sight :

In this defect, the person cannot focus on the nearest object but he can focus clearly on distant objects.

Because his eyeball is too-short and the light is focused at a point behind the retina.

This defect can be correct by using convex lens.

(II) Short sight :

In this defect, the person cannot focus on the distant object but he can focus clearly on near objects.

Because his eyeball is too-long and the light is focused at a point front of retina.

This defect can be correct by using concave lens.

Hence, A doctor suggest converging lenses to correct a patient's vision.

Because The patient's eyes are too short.

i have to report this, it doesn't relate to biology

"1. it should be, it has been for about 20 years, and it's really not much different in the end than breeding animals to have particular traits. there are always concerns about genetically engineered animals/plants affecting the environment in unexpected negative ways, but i can't think of an example where the fears didn't turn out to be baseless.  

first, as you point out, it would be a great advance in pharmacology, to be able to tailor drugs and their doses to me. the pros involve better medical treatment. the cons involve privacy issues like insurance companies denying coverage to people with genetic risk factors. looking at dna markers wouldn't affect the frequency of genetic diseases, but it would allow detection of them earlier. and ok, actually i suppose that if people used this information to avoid having children with genetic diseases, some might decrease in frequency."