Question

myopia can also be the result of a cornea that is too curved or a lens that is too thick. for some, myopia is caused by a combination of these problems. what causes the eyeball to grow too long isnt completely known, but researchers are exploring several possibilities. for many people, myopia appears to be inherited, so if you have a parent with myopia, youre at increased risk for developing it yourself. myopia is becoming increasingly common, both in the u.s. and around the world. in a study published in 2008, experts found that the number of americans with myopia increased significantly from the 1970s to the early 2000s. and myopia is especially prominent among school - age children living where would a discussion of planned research fit best? the fourth paragraph the sixth paragraph the seventh paragraph

Explanation:

Paragraph 5 mentions that researchers are exploring possibilities regarding what causes the eyeball to grow too long. A discussion of planned research would logically follow this exploration - oriented statement. Paragraph 4 is about the causes of myopia (cornea and lens issues). Paragraph 6 is about the increasing prevalence of myopia.

Answer:

the fifth paragraph