What would be an appropriate response if a lens is causing discomfort?

When a lens is causing discomfort, replacing the lens with a new fit is a logical and appropriate response. Discomfort can arise from various factors such as improper lens fit, unsuitable prescription, or the lens material not being compatible with the patient's eyes. By opting for a new fit, you can assess the patient's needs more effectively and select a lens that is more appropriate in terms of curvature, material, and design.

Creating a new lens fit allows for consideration of all the aspects that might have led to discomfort, and it enables the practitioner to make adjustments that are specific to the individual's eye shape and condition. This proactive approach helps ensure that the patient's vision is optimized without enduring continuous discomfort from the current lens.

The other options, such as adjusting lens power or diameter, or modifying prism adjustments, address specific aspects but do not tackle the core issue of fit as a replacement would. If discomfort persists, it’s essential to review the entire fitting process rather than just making minor modifications to the existing lens.