American Board of Opticianry (ABO) Practice Test

Visual field tests are used to assess the extent of your peripheral vision, as well as any blind spots or areas of reduced vision. This is important because peripheral vision and blind spots can be indicative of certain eye conditions or diseases, such as glaucoma. While color perception, depth perception, and central visual acuity are all important aspects of vision, they are not specifically measured by visual field tests. Therefore, options A, C, and D are incorrect and not relevant to visual field tests.