Anterior lenticonus is an ocular abnormality that can occur in Alport’s syndrome. In this study, Scheimpflug slit imaging analyses were employed for quantitative and objective evaluation of lens changes associated with Alport’s syndrome. It was determined that while the apices of the lenticular protrusions are central in the vertical plane, they are nasally displaced in the horizontal meridian. The eccentricity and dimensions of the diameters and thicknesses of the conical aberration are highly correlated in both eyes. Lens thickness and anterior chamber depth do not differ between eyes. Densitometrically similar differences are apparent in the cortex and nuclear regions although evidence of overt opacification may or may not be present. The data strongly suggest that the physical parameters of the lenticonus are consistent with the constraints imposed by the pupil. Changes observed in the cornea and the vitreous may be associated with the syndrome.

1.
Colville DJ, Savige J: Alport syndrome. A review of the ocular manifestations. Ophthalmic Genet 1997;18:161–173.
2.
Worgul BV: The lens; in Jakobiec F (ed): Ocular Anatomy, Embryology and Teratology. Philadelphia, Harper & Row, 1982, chapter 12.
3.
Knapp H: Ein Fall von Lenticonus posterior. Arch Augenheilkd 1891;22:28–31.
4.
Jaworski A: Ein Fall von Lenticonus anterior und über dessen Entstehen. Graefes Arch Clin Exp Ophthalmol 1910;65:313–317.
5.
Alport AC: Hereditary familial congenital hemorrhagic nephritis. BMJ 1927;i:504–506.
6.
Arnott EJ, Crawfurd MD, Toghill PJ: Anterior lenticonus and Alport’s syndrome. Br J Ophthalmol 1966;50:390–402.
7.
Nielsen CE: Lenticonus anterior and Alport’s syndrome. Acta Ophthalmol (Copenh) 1978;56:518–527.
8.
Worgul BV, Kundiev Y, Likhtarev I, Sergienko N, Wegener A, Medvedovsky CP: Use of subjective and nonsubjective methodologies to evaluate lens radiation damage in exposed populations – an overview. Radiat Environ Biophys 1996;35:137–144.
9.
Egner P: Entwicklung eines elektronischen Scheimpflugsystems zur Untersuchung von Linsentrübungen. Aachen, Shaker, 1998.
10.
Sasaki K, Sakamoto Y, Shibata T, Emori Y: The multipurpose camera: A new anterior eye segment analysis system. Ophthalmic Res 1990;22(suppl 1):3–8.
11.
Junk AK, Stefani FH, Ludwig K: Bilateral anterior lenticonus Scheimpflug documentation and ultrastructural confirmation of Alport syndrome in the lens capsule. Arch Ophthalmol 2000;118:895–897.
12.
Eriksson AW, Fellman J, Nieminen H, Forsius H: Influence of age on the position and size of the iris frill and the pupil. Acta Ophthalmol (Copenh) 1965;43:629–641.
13.
Streeten BW, Robinson MR, Wallace R, Jones DB: Lens capsule abnormalities in Alport’s syndrome. Arch Ophthalmol 1987;105:1693–1697.
14.
Perrin D: Le syndrome d’Alport (néphropathies héréditaires avec surdité et atteinte oculaire). Ann Ocul 1964;197:329–346.
15.
Hosada Y, Okada M, Matsumura M, Ogino N, Honda Y, Nagai Y: Intravitreal neovascular tissue of proliferative diabetic retinopathy: An immunohistochemical study. Ophthalmic Res 1992;24:260–264.
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