PURPOSE: To study the tomographic and pathomorphologic features of dome-shaped maculas with swept-source optical coherence tomography (OCT). DESIGN: Prospective, cross-sectional study. METHODS: The macular area of 51 highly myopic eyes (35 patients) with dome-shaped maculas was studied with swept-source OCT at 1050 nm. Three-dimensional (3-D) data sets were obtained with raster scanning covering a 12 × 8-mm(2) area; 3-D images of the posterior pole were constructed by autosegmentation of the retinal pigment epithelium (RPE). RESULTS: In all reconstructed 3-D images of the RPE, 2 outward concavities were seen within the posterior staphyloma and a horizontal ridge was formed between these 2 concavities. In 42 of these eyes, this horizontal ridge was band shaped. The vertical OCT section through the fovea showed a convex configuration of RPE, but the horizontal section showed an almost flat RPE line. In 9 eyes, 3-D images showed a typical dome-shaped convexity within the staphyloma. OCT scans showed no outward protrusions in the external scleral surface, but marked scleral thinning was seen consistent with the 2 outward concavities of the RPE. The sclera of the fovea (518.6 ± 97.6 μm) was significantly thicker than that in all 4 quadrants of the parafoveal area (range, 277.2 to 360.3 μm; P < .001). CONCLUSIONS: In highly myopic eyes with a dome-shaped macula, a horizontal ridge is formed within the posterior staphyloma by uneven thinning of the sclera.
PURPOSE: To study the tomographic and pathomorphologic features of dome-shaped maculas with swept-source optical coherence tomography (OCT). DESIGN: Prospective, cross-sectional study. METHODS: The macular area of 51 highly myopic eyes (35 patients) with dome-shaped maculas was studied with swept-source OCT at 1050 nm. Three-dimensional (3-D) data sets were obtained with raster scanning covering a 12 × 8-mm(2) area; 3-D images of the posterior pole were constructed by autosegmentation of the retinal pigment epithelium (RPE). RESULTS: In all reconstructed 3-D images of the RPE, 2 outward concavities were seen within the posterior staphyloma and a horizontal ridge was formed between these 2 concavities. In 42 of these eyes, this horizontal ridge was band shaped. The vertical OCT section through the fovea showed a convex configuration of RPE, but the horizontal section showed an almost flat RPE line. In 9 eyes, 3-D images showed a typical dome-shaped convexity within the staphyloma. OCT scans showed no outward protrusions in the external scleral surface, but marked scleral thinning was seen consistent with the 2 outward concavities of the RPE. The sclera of the fovea (518.6 ± 97.6 μm) was significantly thicker than that in all 4 quadrants of the parafoveal area (range, 277.2 to 360.3 μm; P < .001). CONCLUSIONS: In highly myopic eyes with a dome-shaped macula, a horizontal ridge is formed within the posterior staphyloma by uneven thinning of the sclera.
Authors: D S C Ng; C Y L Cheung; F O Luk; S Mohamed; M E Brelen; J C S Yam; C W Tsang; T Y Y Lai Journal: Eye (Lond) Date: 2016-04-08 Impact factor: 3.775
Authors: Marie-Hélène Errera; Michel Michaelides; Pearse A Keane; Marie Restori; Michel Paques; Anthony T Moore; Jonathan Yeoh; Derek Chan; Catherine A Egan; Praveen J Patel; Adnan Tufail Journal: Graefes Arch Clin Exp Ophthalmol Date: 2014-01-25 Impact factor: 3.117
Authors: Antonio García-Ben; Radua Kamal-Salah; Ignacio García-Basterra; Ana Gonzalez Gómez; María José Morillo Sanchez; Jose Manuel García-Campos Journal: Graefes Arch Clin Exp Ophthalmol Date: 2017-01-17 Impact factor: 3.117
Authors: Lei Liu; Wendy Marsh-Tootle; Elise N Harb; Wei Hou; Qinghua Zhang; Heather A Anderson; Thomas T Norton; Katherine K Weise; Jane E Gwiazda; Leslie Hyman Journal: Ophthalmic Physiol Opt Date: 2016-11 Impact factor: 3.117