BlueCross BlueShield of Tennessee Medical Policy Manual

Corneal Topography/Computer-Assisted Photokeratoscopy


Computer assisted corneal topography (also called photokeratoscopy or videokeratography) provides a quantitative measure of corneal curvature. Measurement of corneal topography is being evaluated to aid the diagnosis and follow-up of corneal disorders such as keratoconus, difficult contact lens fits, and pre- and postoperative assessment of the cornea, most commonly after refractive surgery. Various techniques and instruments are available to measure corneal topography:




American Academy of Ophthalmology. (2017). Refractive errors & refractive surgery preferred practice pattern®. Retrieved April 25, 2019 from

BlueCross BlueShield of Tennessee network physicians. June-July 2011.

BlueCross BlueShield Association. Evidence Positioning System. (4:2019). Corneal topography/computer-assisted corneal topography/photokeratoscopy (9.03.05). Retrieved April 25, 2019 from (10 articles and/or guidelines reviewed)

U. S. Food and Drug Administration. (1999, March). Center for Devices and Radiologic Health. 510(k) Premarket Notification Database K984443 (Orbscan II™). Retrieved June 5, 2017 from




Policies included in the Medical Policy Manual are not intended to certify coverage availability. They are medical determinations about a particular technology, service, drug, etc. While a policy or technology may be medically necessary, it could be excluded in a member's benefit plan. Please check with the appropriate claims department to determine if the service in question is a covered service under a particular benefit plan. Use of the Medical Policy Manual is not intended to replace independent medical judgment for treatment of individuals. The content on this Web site is not intended to be a substitute for professional medical advice in any way. Always seek the advice of your physician or other qualified health care provider if you have questions regarding a medical condition or treatment.

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