The results of a client's eye examination indicate that the client has an abnormal shape to the curvature of the cornea which is impairing the ability to see clearly.. Astigmatism

The results of a client's eye examination indicate that the client has an abnormal shape to the curvature of the cornea which is impairing the ability to see clearly. The nurse determines that the client has which of the following eye conditions?
a) Myopia
b) Hyperopia
c) Astigmatism***
d) Exophthalmos.