An eye examination 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 examinations can also detect eye diseases like glaucoma or cataracts and monitor general health issues, such as diabetes or hypertension. Regular eye exams are important for maintaining good vision and ensuring early detection of potential problems.