Visual Fields Testing

Formal visual field testing (typically automated perimetry) is medically necessary for a range of ocular, optic nerve, retinal, orbital, and intracranial conditions — including documented glaucoma, suspected glaucoma with supporting signs, unexplained visual loss, medication-related toxicity risk, recent intracranial events or masses, and after significant eye injury. Gross confrontation visual field testing is part of the general ophthalmologic exam and is not separately reportable; testing frequency is individualized based on IOP changes, retinal damage, and optic disc findings, with required documentation of the clinical indication and relevant exam or imaging findings.

"Formal visual field testing is medically necessary for patients with a disorder of the eyelid(s) that may affect the visual field."

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