R
Rithambara Ramachandran
Researcher at Columbia University
Publications - 18
Citations - 757
Rithambara Ramachandran is an academic researcher from Columbia University. The author has contributed to research in topics: Optical coherence tomography & Visual field. The author has an hindex of 11, co-authored 15 publications receiving 632 citations.
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Journal ArticleDOI
The 24-2 Visual Field Test Misses Central Macular Damage Confirmed by the 10-2 Visual Field Test and Optical Coherence Tomography.
Lola M. Grillo,Diane Wang,Rithambara Ramachandran,Alyssa C. Ehrlich,Carlos Gustavo De Moraes,Robert Ritch,Donald C. Hood +6 more
TL;DR: The extent to which the 24-2 visual field (VF) misses macular damage confirmed with both 10-2 VF and optical coherence tomography (OCT) tests was determined and the patterns of damage missed were evaluated.
Journal ArticleDOI
The Inner Segment/Outer Segment Border Seen on Optical Coherence Tomography Is Less Intense in Patients with Diminished Cone Function
Donald C. Hood,Xian Zhang,Rithambara Ramachandran,Christine L. Talamini,Ali S. Raza,Jonathan P. Greenberg,Jerome Sherman,Stephen H. Tsang,David G. Birch +8 more
TL;DR: The intensity of the inner segment ellipsoid (ISe) band is lower in patients with diminished cone function than it is in healthy controls, consistent with the hypothesis that both rod and cone receptors must be absent or damaged for this band to be missing.
Journal ArticleDOI
Quantitative Fundus Autofluorescence and Optical Coherence Tomography in Best Vitelliform Macular Dystrophy
Tobias Duncker,Jonathan P. Greenberg,Rithambara Ramachandran,Donald C. Hood,R. Theodore Smith,Tatsuo Hirose,Russell L. Woods,Stephen H. Tsang,François C. Delori,Janet R. Sparrow +9 more
TL;DR: Quantitative fundus autofluorescence (qAF), spectral domain optical coherence tomography (SD-OCT) segmentation, and multimodal imaging were performed to elucidate the pathogenesis of Best vitelliform macular dystrophy (BVMD) and to identify abnormalities in lesion versus nonlesion fundus areas.
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Method for deriving visual field boundaries from OCT scans of patients with retinitis pigmentosa.
Donald C. Hood,Rithambara Ramachandran,Karen Holopigian,Margot A. Lazow,David G. Birch,Vivienne C. Greenstein +5 more
TL;DR: The location of the loss of the inner segment (IS)/outer segment (OS) border, as seen with frequency domain optical coherence tomography (fdOCT), was determined on fdOCT scans from patients with retinitis pigmentosa and showed promise as a measure for following changes in patients undergoing treatment.
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A Comparison of Progressive Loss of the Ellipsoid Zone (EZ) Band in Autosomal Dominant and X-Linked Retinitis Pigmentosa
TL;DR: The OCT data here support a faster rate of loss per year in the case of xlRP, which is a marker of the usable visual field at a given point in time and of the progression of the disease over time.