What is the correct sequence for testing a client's vision using a Snellen chart?

The appropriate sequence for testing a client's vision using a Snellen chart involves assessing one eye at a time, followed by checking both eyes together. This allows for a clearer understanding of each eye's visual acuity before considering combined visual function. Testing the right eye first provides a baseline for comparison, followed by the left eye to evaluate any differences in vision between the two eyes. Once both eyes have been tested individually, assessing their combined function helps to determine how they work together, which is crucial for overall visual function assessment.

Testing both eyes simultaneously first may not provide an accurate measure of each eye's individual acuity, while assessing one eye and skipping the other does not give complete information about the client's visual capacities. Additionally, incorporating color vision testing with the initial eye tests might distract from the primary focus on visual acuity. Thus, the sequence of testing the right eye, then the left eye, and finally both eyes is clinically effective and provides comprehensive results regarding the client's vision.