Final answer:
The patient correctly understands that for the treatment of myopia, they need corrective concave lenses, which help diverge light rays and focus them onto the retina. correct answer is d) Corrective concave lenses are needed .
Step-by-step explanation:
The correct answer to the student's question regarding myopia correction is 'd. Corrective concave lenses are needed.' This indicates the patient has understood the teaching about the treatment of myopia.
In the case of myopia, or nearsightedness, the eye is longer than normal, causing images to be focused in front of the retina. Corrective concave lenses are used to diverge the light rays slightly so that they can be correctly focused on the retina, allowing the patient to see distant objects clearly. Unlike myopia, hyperopia (farsightedness) requires convex lenses to converge light rays and focus them on the retina.
Mydriatic ophthalmic drops are generally used to dilate the pupils for examination purposes and are not a corrective measure for myopia. Cataract surgery involves replacing the clouded lens of the eye but is unrelated to the correction of myopia.