The following clinical criteria must be met before permission to proceed and waiver is granted
following CRS treatment in AASD personnel:
A. Age 21 or older.
B. Refractive error limits do not exceed those listed in Table 1.
C. Show demonstrated refractive stability with no more than 0.50 diopter shift in manifest
sphere or cylinder power between two or more refractions (one refraction current with application
data and the other at least one year older).
D. Normal corneal topography (CT) – no evidence of abnormal corneal surface topography
(including but not limited to): corneal irregularity, abnormal videokeratography, keratoconus,
and/or “topographical pattern suggestive of keratoconus” (TPSK) in either eye.
E. No history or evidence of (including but not limited to): active ophthalmic disease,
corneal neovascularization within 1 mm of intended ablation zone, central crystalline lens
opacifications (i.e. post subcapsular cataracts), severe dry eyes, keratoconjunctivitis sicca, uveitis,
keratitis, excessive pupil enlargement, glaucoma, predisposing disorder to glaucoma development
(i.e. pigment dispersion syndrome with IOP greater than 21 mm Hg) or retinal pathology.
F. Not currently pregnant or actively nursing--must be greater than 6 months post-partum or
greater than 6 months after discontinuing nursing.
G. Not using concurrent topical or systemic medication which may impair healing
(including but not limited to): corticosteroids, antimetabolites, isotretinoin (Accutane®),
amiodarone hydrochloride (Cordarone®), and/or sumatriptan (Imitrex®).
F. No history of medical conditions which, in the judgment of the treating corneal refractive
surgeon may impair healing (including but not limited to): collagen vascular disease, autoimmune
disease, immunodeficiency disease, active or history of ocular herpes zoster or simplex, endocrine