The American Academy of Ophthalmology’s guidelines on “Primary open-angle glaucoma” (AAO, 2010) mentioned no role for corneal topography in the management of patients with open-angle glaucoma.Ĭhoi and Kim (2012) examined the longitudinal changes in corneal topographic indices over time in patients with mild keratoconus (KC) and determined predictive factors for the increase in corneal curvature.
#ICD 10 PELLUCID MARGINAL DEGENERATION MANUAL#
This test is used for the detection of subtle corneal surface irregularities and astigmatism as an alternative to manual keratometry.
#ICD 10 PELLUCID MARGINAL DEGENERATION SERIES#
Post-herpes simplex virus scarring of corneaĬomputerized corneal topography (also known as computer assisted corneal topography, computer assisted keratography, or videokeratography) is a computer- assisted diagnostic technique in which a special instrument projects a series of light rings on the cornea, creating a color-coded map of the corneal surface as well as a cross-section profile.Nodular degeneration of the cornea (e.g., Salzmann's corneal degeneration).Lens subluxation (e.g., in Marfan syndrome).Epithelial ingrowth following laser in situ keratomileusis (LASIK).Please check benefit plan descriptions for details.Īetna considers corneal topography experimental and investigational if it is performed as part of pre-operative assessment of members with cataracts (see CPB 0508 - Cataract Removal Surgery).Īetna considers corneal topography experimental and investigational for the management of members with the following indications (not an all-inclusive list) because corneal topography has not been shown to alter the clinical management of these conditions such that clinical outcomes are improved: Most Aetna benefit plans exclude coverage of refractive surgery.
Note: Aetna does not cover corneal topography if it is performed pre- or post-operatively in relation to a non-covered procedure (i.e., refractive eye surgery). Repeat testing to monitor disease progression in keratoconus or Terrien's marginal degeneration may be necessary over time. Pre- and post-penetrating keratoplasty and post kerato-refractive surgery for irregular astigmatism (subject to medical necessity criteria for these procedures - see CPB 0023 - Corneal Remodeling) orįootnote1* Generally, 1 testing for each eye is sufficient for fitting, unless there is some reason for repeat testing conducted in the medical record, such as a change in the member's condition from the prior examination.Difficult fitting of contact lens (see CPB 0126 - Contact Lenses and Eyeglasses) Footnote1* or.Diagnosing and monitoring disease progression in keratoconus or Terrien's marginal degeneration or.Corneal dystrophy, bullous keratopathy and complications of transplanted cornea or.Aetna considers computerized corneal topography medically necessary for any of the following conditions:
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