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9. Apical changes and scarring in keratoconus as related to contact lens fitting techniques. Korb DR, Finnemore VM, Herman JP. J Am Optom Assoc; 1982 Mar; 53(3):199-205. PubMed ID: 7077036 [Abstract] [Full Text] [Related]
11. A retrospective case series: use of SoftPerm contact lenses in patients with keratoconus. Ozkurt Y, Oral Y, Karaman A, Ozgür O, Doğan OK. Eye Contact Lens; 2007 Mar; 33(2):103-5. PubMed ID: 17496704 [Abstract] [Full Text] [Related]
12. A hyper-Dk piggyback contact lens system for keratoconus. O'Donnell C, Maldonado-Codina C. Eye Contact Lens; 2004 Jan; 30(1):44-8. PubMed ID: 14722470 [Abstract] [Full Text] [Related]