REFERENCES
- Acher K W. Ungewohnliche Hornhautringe. Ber Dtsch Ophthal Ges. 1963; 65: 44–46
- Bron A J. Periferal ring opacity of the cornea. Brit J Ophthal 1969; 53: 270–273
- Melles G R, De sera J P, Eggink C A, et al. Bilateral, anterior stromal ring opacity of the cornea. Brit J Ophthal. 1998; 82: 522–525
- Silvesri A, Boisjoly H. Bilateral corneal ring opacity of unknown origin. Cornea 2003; 22(1)86–87
- Robin J B, Schanziin D J, Verity S M, et al. Peripheral corneal disorders. Surv Ophthalmol 1986; 31: 1–36
- Paulin C J, Foster F S. Ultrasound biomicroscopy of the eye. Springer & Veelay, New York 1995
- Mannino G, Papale A, De Bella F. Biomicroscopia ad ultrasuoni in oftalmologia. INC, Roma 2004, in press
- Fraunfelder F T, Meyer S M. Ocular toxicology. Duane's clinical ophthalmology, revised edition, W Tasman, E A Jaeger. Lippincott-Raven, Philadelphia 1990; Vol. 5: 1–44, chapter 37
- Mondino B J. Inflammatory diseases of the peripheral cornea. Ophthalmology. 1988; 4: 463–472
- Catsarou-Catsari A, Katsambas A, Theodoropoulos P, Stratigos J. Ophthalmological manifestations in patients with psoriasis. Acta Derm Venereo 1984; 64: 557–555
- Boss M, Peachey D, Easty D, Thomsitt E. Peripheal corneal melting syndrome in association with psoriasis: a report of two cases. Br Medical Journal. 1981; 282: 609
- Bron A J, Williams H P, Carruters M E. Hereditary crystalline stromal dystrophy of schnyder. I. Clinical features of a family with hyperlipoproteinaemia. Br J Ophthal 1972; 56: 383–399
- Axenfeld Th. Üeber dobbelseitige progressive parenchymatöse verkalkung (dystrophia calcarea) der cornea. Klin Monatsbl Tur Augenheilkunde 1917; LVII: 58
- Axenfeld Th. Dystrophien des Korneaparenchyms. Klin Monatsb. Octobre 1930; LXXXV: 493–507
- Michail D. Dégénérescence calcaire primitive de la cornée. Arch Ophthalmol 1935; 52: 247–257
- Tita C. Distrofia calcarea, lamellare, primitiva della cornea (osservazioni cliniche, biomicroscopiche, istologiche, chimiche ed istochimiche). Boll Oculist. 1940; 40: 40
- Dukes-Elder S. System of Ophthalmology 1965; 8: 890–892
- Mohan H. Primary calcareous degeneration of the cornea. Br J Ophthalmol 1969; 53: 195–197
- Menezo J L, Manzanas A. MenezoV. Thésaurismose annulaire calcaire de la cornée: dystrophie d'Axenfeld. Arch Opht (Paris). 1975; 35: 965–972
- Henriksen E. Primary calcareus corneal dystrophy. Acta Ophtalmologica. 1982; 60: 759–764
- Lavid F J, Herreras J M, Calonge M, Saornil M A, Aguirre C. Calcareus corneal degeneration: report of two cases. Cornea. 1995; 14(1)97–102
- Fine B S, et al. Primary lipoidal degeneration of the cornea. Am J Ophthalmol. 1974; 78: 12–2
- Baum J. Cholesterol keratopathy. Am J Ophthalmol. 1969; 67: 372–375
- Kachi S, Hirano K, Takesue Y, Miura M. Unusual corneal deposit after the topical use of cyclosporin as eye drop. Am J Ophthalmol. 2000; 130: 667–669