Purpose: To analyze the outer retinal layers using spectral domain optical coherence tomography (SD-OCT) in patients with cone-rod dystrophy. Methods: The diagnosis of cone-rod dystrophy was determined by primary cone involvement or concomitant loss of both cones and rods. Electroretinography showed implicit time shift at 30-Hz flicker response and prevalent decrease of photopic over scotopic responses. Using SD-OCT, the outer retina was retrospectively evaluated in 24 eyes of 12 patients with cone-rod dystrophy. From the innermost to the outermost, the four studied hyperreflective outer retinal bands were labeled Band 1, the external limiting membrane; Band 2, the ellipsoid zone; Band ...
Purpose: To describe previously unreported imaging features of choroidal lymphoma using enhanced depth imaging optical coherence tomography (OCT). Methods: Enhanced depth imaging OCT was performed before and after the therapy. Results: A 32-year-old white man with a 4-month history of blurred vision in the right eye was found to have a macular fold. There was no visible intraocular tumor. There were no signs of anterior segment inflammation, vascular abnormalities, or infiltrative disease. Visual acuity was 20/150 in the right eye and 20/20 in the left eye. Enhanced depth imaging OCT demonstrated a macular retinal fold and marked thickening ...
Any sufficiently advanced technology is indistinguishable from magic. Arthur C. Clarke The increasing sophistication of modern technology is impressive to even the most jaded, but after a while it gets easier to think of technological devices, or in the case of ophthalmic imaging equipment, as black boxes that accomplish specific tasks. The problem with black boxes is that we may fail to appreciate the logical underpinnings of how they actually work. The results may seem a bit like magic, but we are rational creatures and to avoid the failings of magical thinking we can end up doubting or questioning the ...
Purpose: To investigate the posterior segment in cases of clinically evident intraocular inflammation for punctate reflections consistent with that expected to arise from inflammatory cells. Methods: Patients with ocular inflammatory diseases imaged with spectral-domain optical coherence tomography (SD-OCT) were retrospectively reviewed. Results: There were 7 patients with mean age of 66.7 years, and the diagnosis was toxoplasmosis in 5 eyes, multiple evanescent white dot syndrome in 1 eye, and posttraumatic outer retinitis in 1 eye. At baseline, the SD-OCT showed vitreous cells as numerous punctate spots in the vitreous in all seven eyes. The SD-OCT also showed similar-sized hyperreflective ...
Richard F. Spaide, MD, is with the Vitreous-Retina-Macular Consultants of New York.
The real advantage of SDOCT is scanning speed.In The Evolution of Spectral Domain OCT