An eye exam is a series of tests conducted by an optometrist or ophthalmologist to assess vision and eye health. During the exam, various tools and techniques are used to check for refractive errors, such as nearsightedness or farsightedness, and to evaluate the overall condition of the eyes. Eye exams can also detect common eye diseases, including glaucoma and cataracts. Regular eye exams are important for maintaining good vision and can help identify issues early, allowing for timely treatment and management. It is recommended to have an eye exam every one to two years, depending on individual needs.