Scheimpflug imaging in anterior megalophthalmos
Our aim was to describe a case of a 25-years-old male diagnosed with anterior megalophthalmos in both eyes and present the usefulness of Pentacam HR in such a case.\nAt birth, the lengths of both corneas of the proband were found specifically enlarged. At examination under anesthesia, buphthalmus was excluded with intraocular pressure measurement and optic disc examination.\nUltrasound biomicroscopy and topography were done at the age of 15. Pentacam HR measurements were done at the age of 25 of the patient. He had a visual acuity of 15/20 and 14/20 with myopic correction at the age of 25. Anterior and posterior keratometry map was done with Pentacam HR (Oculus, Wetzlar, Germany) in both eyes. Anterior keratometry values were 40.4/41.4 D on the right eye, 40.2/41.9 D on the left eye. Posterior keratometric data were -5.5/-5.7 D on the right eye, -5.8/-5.3 D on the left eye []. At corneal aberration examination, the total RMS (root mean square) was 132.71 μm in the right eye and 134.26 μm in the left eye, the spherical aberration value was 4.51 μm and 5.16 μm.\nAt slit lamp examination, an optically clear cornea was detected. The horizontal diameter of the cornea was 17.0 mm in both eyes [Figs. –] at the age of 1, 9, and at the age of 25, too. Corneal pachymetry maps were obtained with Pentacam HR using the Scheimpflug imaging method, which showed a central pachymetry value of 390 μm and a corneal thickness between 450-500 μm in the periphery [] in both eyes. Specular microscopy (EM-1000, Tomey) measured endothelial counts of 2450 cell/mm2 in both eyes.\nThe anterior chamber was found deep measured with ultrasound, 7.24 mm in the right eye and 7.47 mm in the left eye. Ultrasound biomicroscopy (HT 35-50 UBM system, Ophthalmic Technologies Inc.) (which was done at the age of 15) showed anterior chamber depth of 7.95 mm and 7.9 mm []. With Pentacam HR, 8.04 mm anterior chamber depth was measured in the right eye, and 8.31 mm in the left eye, the volume of the chamber was 721 mm3 in the right eye and 742 mm3 in the left eye. The angle of the chamber measured with Pentacam HR is an average of 50.70 and 54.90 (between 34.50 és 58.70 degree in both eyes) in the right and left eye [].\nSignificant iridodonesis was observed, but phacodonesis was not detected. Central opacity was observed in the lens in both eyes, of which ultrasound biomicroscopy images were taken []. The thicknesses of the lens were 3.61 and 3.43 mm in the right and left eye, measured with ultrasound biomicroscopy.\nIndirect gonioscopy detected wide ciliary band, dense pigmentation was observed on the trabecular meshwork in both eyes [].\nThe axial length was 28.4 mm in the right eye and 29.06 mm in the left, the vitreous index (vitreous length/axial length x100) was 61.8% in the right eye and 62.5% in the left eye. Intraocular pressure was within normal interval in both eyes. No fundus deviation was found.