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28 March 2019 : Clinical Research  

Alport Patients without Classic Ocular Symptoms Have Smaller Lens Diameter

Eva Suranyi1BDE*, Valeria Nagy1AD, Andras Berta1A, Janos Matyus2B, Eszter Szalai1CD, Bernadett Ujhelyi1EF, Judit Meleg1BF, Judit Damjanovich1AD

DOI: 10.12659/MSM.912924

Med Sci Monit 2019; 25:2274-2277

Abstract

BACKGROUND: The aim of this study was to present ophthalmological findings regarding Alport syndrome and report refractometry data and to present possible early signs of the syndrome.

MATERIAL AND METHODS: Seven patients suffering from Alport syndrome were referred to the Department of Ophthalmology at the University of Debrecen between January 1st, 2014, and December 31st, 2015. All patients underwent slit lamp evaluation and dilated fundus biomicroscopy, with special attention paid to lenticonus and retinal changes. IOL Master, Pentacam HR, and ultrasound biomicroscopy were performed to assess keratometry, corneal thickness, anterior chamber depth, lens size, and axial length data.

RESULTS: One patient out of seven had ocular symptoms. Posterior polymorphous corneal dystrophy (PPMD) and dot-and-fleck retinopathy were seen. Meanwhile, although keratoconus was not proven, remarkable astigmatism with high myopia was detected. The other six patients were found to have a significantly smaller lens diameter (an average of 7.82±0.66 mm, p=0.035) compared to normal controls (an average of 8.65±0.46 mm). Lenses also tended to be thicker in Alport patients (3.48±0.19 mm) compared to controls (3.4±0.2 mm), although the difference was not significant (p=0.394). The power of the lens also showed a significant difference (p=0.026), with Alport patients having lower lens power.

CONCLUSIONS: Alport syndrome patients without classical ophthalmological findings have smaller crystalline lens diameter and lower lens power. These signs may support the diagnosis of Alport syndrome. Ophthalmologists should not only seek for the known classic signs, but also the parameters of the crystalline lens, especially if genetic testing is not available.

Keywords: Cornea, Microscopy, Acoustic, Nephritis, Hereditary

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750