What is the main reason for instructing patients about potential blurred vision after applying ointment?

Instructing patients about the potential for blurred vision after applying ointment is crucial primarily to ensure they understand the potential side effects of the medication they are using. When patients are informed about what to expect, they can manage their expectations and avoid unnecessary alarm if they experience blurred vision. This education empowers them to recognize normal side effects and assists them in making informed decisions regarding their activities, such as driving or operating machinery, immediately following application. Understanding these side effects helps in promoting adherence to the treatment regimen and in fostering open communication with healthcare providers if they have concerns or experience unusual symptoms.