The nurse performed a cover-uncover test on a client to test for atropia. When the left eye was covered, the right eye moved inward. The finding indicated that the client had:
1. Exotropia.
2. Esotropia.
3. No strabismus.
4. Vertical phoria.
Exotropia.
Rationale: Tropia is a functional defect that results from a break in visual fusion due to an imbalance or misalignment of the extraocular muscles when both eyes are not covered. If the uncovered eye moves inward, then it was fixed outward. This is exotropia. If the uncovered eye moves outward, then it was fixed inward. This is esotropia. If the uncovered eye does not move, it indicates the client does not have strabismus, which is a functional misalignment of the extraocular muscles that causes the eyes not to focus together. If the uncovered eye moved up or down, it would indicate vertical phoria.
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