What is included in the cataract surgery work-up?

• A. Complete ophthalmic exam including STT, fluorescein stain, IOP, dilated exam with tropicamide; gonioscopy; electroretinogram; ocular ultrasound
• B. Visual acuity testing only
• C. Blood pressure measurement
• D. Color vision testing

Answer: (D)

Color vision testing is included because the aging, opacified lens of a cataract alters color perception. Establishing a baseline color vision before surgery helps you understand how the cataract is distorting color and provides a reference to compare with after the lens is replaced. It also helps reveal any coexisting retinal or optic nerve issues that could limit postoperative color perception or overall outcome. While a broader preop evaluation may include many other tests as indicated, color vision testing specifically addresses how the cataract affects color perception and aids in counseling and detecting additional ocular problems.