Final answer:
When fitting Proclear Multifocal and XR/Biofinity multifocal lenses, it is crucial to focus on near vision needs equally (option D) to distance vision while also considering patient comfort and using a trial-and-error method for power selection.
Step-by-step explanation:
A crucial step in fitting Proclear Multifocal and XR/Biofinity multifocal lenses is to focus on near vision needs equally as distance vision. It is important to consider both aspects because multifocal lenses are designed to provide correction for both near and distance vision simultaneously. Disregarding either component could lead to inadequate visual performance with the lenses.
Therefore, during the fitting process, an eye care professional should meticulously assess and address the visual requirements at all distances. Comfort feedback from the patient is also vital to ensure the lenses fit well and do not cause any discomfort. Using a trial-and-error method can assist in determining the correct lens power and design for each individual patient's needs.