Question

Who are the best candidates for ortho-K? (include power, cyl, and keratometry)

a) Low myopia, < -4.00D, < 1.50D cyl, and corneal curvature < 47.00D

b) High myopia, > -6.00D, > 2.00D cyl, and corneal curvature > 50.00D

c) Moderate myopia, -4.00D to -6.00D, 1.50D to 2.00D cyl, and corneal curvature 47.00D to 50.00D

d) Hyperopia, > +2.00D, > 1.50D cyl, and corneal curvature < 47.00D

Answer 1

The best candidates for ortho-K are those with low myopia, < 1.50D cyl, and corneal curvature < 47.00D. These individuals have mild to moderate nearsightedness, low astigmatism, and a relatively flat cornea.

Step-by-step explanation:

The best candidates for ortho-K are those with low myopia (< -4.00D), < 1.50D cyl, and corneal curvature < 47.00D. These individuals have mild to moderate nearsightedness, low astigmatism, and a relatively flat cornea. Ortho-K works by temporarily reshaping the cornea using specially designed contact lenses.