You observe a nasal or inward drift of your patient's left eye during the cover/uncover test. This condition is called which of the following?

a. esophoria c. pterygium
b. ptosis d. exotropia


A
During the cover/uncover test, it is noted that the uncovered eye shifts position as the other eye is covered. In other words, when you cover the stronger eye, the weaker eye now tries to fixate. If the covered eye shifts position as it is uncovered, a phoria, or latent misalignment of an eye, exists. These results indicate a mild weakness of the extraocular muscles. Esophoria is a nasal or inward drift. Exophoria is a temporal or outward drift. Ptosis is a drooping of the eyelid. Pterygium is a thick triangular piece of pale tissue that extends medially from the nasal border of the cornea to the inner canthus of the eye.

Nursing

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