Mahmoud, Mohamed Magdy Ibrahim; Hamdy, Alaa Mohamed; Mohamed, Ashraf Bori; Diaa El Din, Yasmine Ahmed (2022-07-01). "An Updated Overview of Keratoconus Management: Review Article". The Egyptian Journal of Hospital Medicine. 88 (1). Egypts Presidential Specialized Council for Education and Scientific Research: 2777—2780. doi:10.21608/ejhm.2022.241951. ISSN2090-7125.
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Six cases of secondary keratoconus with Fleischer's ring pattern corneal epithelial iron ring PMID 8644546
Iron homeostasis and eye disease. Loh A, Hadziahmetovic M, Dunaief JL. Biochim Biophys Acta. 2009 Jul;1790(7):637-49. Epub 2008 Nov 14. PMID 19059309
A 'New' Iron Line of the Superficial Cornea Occurrence in Patients With Filtering Blebs Andrew P. Ferry, MD Arch Ophthalmol. 1968;79(2):142-145. PMID 5635336
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Mahmoud, Mohamed Magdy Ibrahim; Hamdy, Alaa Mohamed; Mohamed, Ashraf Bori; Diaa El Din, Yasmine Ahmed (2022-07-01). "An Updated Overview of Keratoconus Management: Review Article". The Egyptian Journal of Hospital Medicine. 88 (1). Egypts Presidential Specialized Council for Education and Scientific Research: 2777—2780. doi:10.21608/ejhm.2022.241951. ISSN2090-7125.