Effect of Hydroxychloroquine on the Retinal Layers: A Quantitative Evaluation with Spectral-Domain Optical Coherence Tomography

Figure 1

Spectral-domain optical coherence tomography (SD-OCT) horizontal scan (passing through the foveal center) image of a healthy right eye. High-definition imaging with SD-OCT allows detailed description of the retinal structures. The retinal layers are labeled from the top to the bottom as external limiting membrane (ELM), ellipsoid zone (EZ), and retinal pigment epithelium- (RPE-) Bruch’s membrane complex.

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