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UNOFFICIAL 1737-87 by symptoms. The provider shall make a reasonable effort to determine the date of any previous refraction; and (C) Vision analysis; (2) Prescription eyeglasses: (A) When, for single vision lenses, the refractive correction is at least: (i) For an original prescription, (+) or (-) 0.50 diopter, sphere or

cylinder, or 1 vertical or 5 horizontal prism diopters; or (ii) For a change in prescription of (+) or (-) 0.50 diopter, or sphere or cylinder, or 6 degrees in cylinder axis; (B) Which may have single vision, bifocal, or prism lenses made of glass or

plastic. Glass lenses shall conform to standard Z-80 (National Bureau of

Standards) as it existed on September 15, 1983; (C) But, exclusions shall be that: (i) Trifocal lenses shall be covered only for those persons who are currently wearing these lenses satisfactorily and for specific job requirements; (ii) Tinted or coated corrective lenses shall be included only for persons

with aphakia, albinism, glaucoma, or other medical conditions of the eyes exclusive of photophobia not associated with such conditions. Lights transmission shall be adequate to permit use of the lenses indoors and at night; (iii) Oversize lenses shall not be

covered; and (iv) Bilateral plano glasses shall be covered as safety glasses for persons with one remaining functioning eye; (D) Along with the case and frame, and repair or replacement of any part; (E) Individuals with presbyopia who require

no or minimal distance correction shall be fitted with ready-made half glasses instead of bifocals; and (F) Where applicable following cataract extraction with or without insertion