One common misconception I've encountered about vision insurance is that it covers all eye-related expenses, including comprehensive eye exams and all types of eyewear. From my experience, many people assume their plan will fully pay for everything, but in reality, vision insurance typically covers only basic exams and offers a limited allowance toward glasses or contacts. For example, a client once expected their insurance to cover a specialized lens upgrade, only to find out it was an out-of-pocket expense. The reality is that vision insurance is designed mainly to offset routine costs and encourage preventive care, but it rarely covers advanced treatments or designer frames. Understanding these limitations upfront can help people plan better and avoid surprises when they visit their eye care provider.