Abstract
BackgroundTo evaluate the detailed structural profile of dome-shaped macula and its association with myopic macular complications.MethodsThis retrospective study included 147 eyes of 93 patients who were diagnosed with degenerative myopia. The height of the scleral dome and diameter of the dome base were measured via enhanced depth imaging optical coherence tomography images with 1:1 μm setting. Spherical equivalent and best-corrected visual acuity were compared in eyes with and without dome-shaped macula. In eyes with dome-shaped macula, the height and diameter of the dome were compared in eyes with and without myopic macular complications including choroidal neovascularization, myopic foveoschisis, and macular hole.ResultsDome-shaped macula was noted in 60 eyes (40.8%) of 42 patients. The mean height of the dome in the eyes with dome-shaped macula was 126.5 ± 69.4 μm (53 to 345 μm) and the mean diameter of the dome base was 2862.1 ± 794.9 μm (1567 μm to 4886 μm). In comparing eyes with and without dome-shaped macula, eyes with dome-shaped macula had higher myopia (− 13.7 diopters vs − 12.1 diopters, P = 0.022). There was no difference in visual acuity in eyes with or without dome-shaped macula (P = 0.132). The height and diameter of the dome in eyes with and without myopic foveoschisis were 78.6 ± 20.6 μm and 134.9 ± 71.6 μm, 2499.2 ± 303.1 μm and 2969.3 ± 645.7 μm, respectively (P = 0.009 and P = 0.017). However, the height and diameter of the dome were not related to the incidence of a macular hole (P = 0.324 and P = 0.605) and choroidal neovascularization (P = 0.835 and P = 0.905).ConclusionsThe prevalence of dome-shaped macula was about 40% in the eyes with degenerative myopia. Although dome-shaped macula was associated with higher degrees of myopia, a prominent dome seemed to be protective against myopic foveoschisis.
Highlights
To evaluate the detailed structural profile of dome-shaped macula and its association with myopic macular complications
Enhanced depth imaging (EDI) optical coherence tomography (OCT) examination revealed that the elevation is the result of a relatively thick sclera under the macula [2]
We retrospectively reviewed the medical records of patients with degenerative myopia
Summary
To evaluate the detailed structural profile of dome-shaped macula and its association with myopic macular complications. The dome-shaped macula is a distinct entity characterized by convex elevation of the macula in high myopia [1]. This elevation of the macula is often negligible on fundus examination or ultrasonography, but can be clearly detected via an optical coherence tomography (OCT) examination [1]. Several investigators suspected possible association of dome-shaped macula with foveal detachment [1, 4] and choroidal neovascularization [2, 3]. A more recent study by Liang et al suggested that a dome-shaped macula was associated with an increased incidence of foveal detachment and a decreased incidence of myopic foveoschisis [6]. Potential associations between ocular disorders and dome height have not yet been fully elucidated
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
