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Start Over Author "S., Kalyani" Journal american journal of ophthalmology
4 results on '"S., Kalyani"'

1. Association between retinal nerve fiber layer thickness and abnormalities of vision in people with human immunodeficiency virus infection

Author

Gary N. Holland, Alfredo A. Sadun, Partho S. Kalyani, Fei Yu, Tiago Eugênio Faria e Arantes, and Amani A. Fawzi

Subjects
Adult, Male, Retinal Ganglion Cells, Pathology, medicine.medical_specialty, Abnormal color vision, Time Factors, genetic structures, Color vision, media_common.quotation_subject, Population, Nerve fiber layer, Human immunodeficiency virus (HIV), Visual Acuity, Color Vision Defects, HIV Infections, medicine.disease_cause, Antiviral Agents, Article, Contrast Sensitivity, chemistry.chemical_compound, Optical coherence tomography, Retinal Diseases, Ophthalmology, medicine, Contrast (vision), Humans, education, media_common, Aged, education.field_of_study, Color Perception Tests, medicine.diagnostic_test, business.industry, Retinal, Middle Aged, eye diseases, Axons, CD4 Lymphocyte Count, medicine.anatomical_structure, Cross-Sectional Studies, chemistry, Female, sense organs, business, Tomography, Optical Coherence
Abstract

Purpose To investigate relationships between contrast sensitivity (CS), color vision, and retinal nerve fiber layer (RNFL) among people with human immunodeficiency virus (HIV) infection; to evaluate the effect of time since diagnosis of HIV infection on RNFL thickness. Design Noninterventional cross-sectional study. Methods We evaluated 102 eyes of 57 HIV-infected individuals without ocular opportunistic infections. Peripapillary RNFL thickness was determined with spectral-domain optical coherence tomography in 4 quadrants. CS was measured with the Pelli-Robson technique (expressed as logCS); color vision was measured with the Lanthony desaturated 15-hue technique (expressed as color confusion index [C-index], with higher scores indicating worse color vision). Correlations between values were assessed using Spearman correlation coefficients. Results Median RNFL thickness (average of 4 quadrants) was 102.9 μm (range, 75.0–134.7 μm). Median logCS was 1.90 (range, 1.25–1.95). Median C-index was 1.58 (range, 0.96–4.07). Temporal RNFL thickness was correlated with logCS (r = 0.295, P = .003) and C-index (r = −0.338, P = .0005). Time since diagnosis of HIV infection was shorter for those with thick average RNFL than for those with thin average RNFL ( P = .18). Conclusions Both worse CS and worse color vision are correlated with thinning of the temporal RNFL, with possible threshold effects. Increased prevalences of abnormal CS and abnormal color vision in this population are therefore likely attributable to neuroretinal compromise. This pattern of structural and functional losses may reflect preferential damage to small-caliber axons in the maculopapillary bundle, possibly associated with mitochondrial dysfunction, providing a potential disease mechanism for HIV-associated "neuroretinal disorder."

Published
2011

2. Retinal vessel caliber among people with acquired immunodeficiency syndrome: relationships with disease-associated factors and mortality

Author

Sapna Gangaputra, Partho S. Kalyani, Amani A. Fawzi, Gary N. Holland, Ronald P. Danis, Mark L. Van Natta, Jennifer E. Thorne, and Larry D. Hubbard

Subjects
Adult, CD4-Positive T-Lymphocytes, Male, medicine.medical_specialty, Central retinal artery, Central retinal vein, Visual acuity, Retinal Artery, Visual Acuity, Article, chemistry.chemical_compound, Retinal Diseases, Venules, Risk Factors, Internal medicine, medicine.artery, Antiretroviral Therapy, Highly Active, Cause of Death, Medicine, Humans, Longitudinal Studies, Cause of death, Acquired Immunodeficiency Syndrome, business.industry, Retinal, Middle Aged, Retinal Vein, United States, Surgery, CD4 Lymphocyte Count, Ophthalmology, Arterioles, medicine.anatomical_structure, Quartile, chemistry, Cardiology, HIV-1, RNA, Viral, Female, medicine.symptom, Visual Fields, business, Cohort study
Abstract

To evaluate relationships between retinal vessel caliber, AIDS-related factors, and mortality.Longitudinal, observational cohort study.We evaluated data for participants without ocular opportunistic infections at initial examination (baseline) in the Longitudinal Studies of the Ocular Complications of AIDS (1998-2008). Semi-automated evaluation of fundus photographs (1 eye/participant) determined central retinal artery equivalent (CRAE), central retinal vein equivalent (CRVE), and arteriole-to-venule ratio (AVR) at baseline. Multiple linear regression models, using forward selection, identified independent relationships between indices and various host- and disease-related variables.Included were 1250 participants. Mean follow-up for determination of mortality was 6.1 years. Smaller CRAE was related to increased age (P.001) and hypertension (P.001); larger CRAE was related to lower hematocrit (P = .002). Larger CRAE and CRVE were associated with black race (P.001). Larger CRVE was related to smoking (P = .004); smaller CRVE was related to age (P.001) and higher mean corpuscular volume (P = .001). We observed the following relationships with AIDS-associated factors: smaller CRAE and larger CRVE with history of highly active antiretroviral therapy (HAART; P.001); and larger CRAE with lower CD4+ T lymphocyte count (P = .04). We did not identify independent relationships with human immunodeficiency virus RNA blood levels. There was a 12% (95% CI, 2%-21%) increase in mortality risk per quartile of decreasing AVR (P = .02).Variations in retinal vascular caliber are associated with AIDS-specific factors and are markers for increased mortality risk. Relationships are consistent with the hypothesis that the vasculature is altered by known atherogenic effects of chronic HAART or the prolonged inflammatory state associated with AIDS.

Published
2010

3. Factors Predicting Visual Acuity Outcome in Intermediate, Posterior, and Panuveitis: The Multicenter Uveitis Steroid Treatment (MUST) Trial

Author

John H. Kempen, Mark L. Van Natta, Michael M. Altaweel, James P. Dunn, Douglas A. Jabs, Susan L. Lightman, Jennifer E. Thorne, Janet T. Holbrook, Glenn J. Jaffe, Brenda Branchaud, Paul Hahn, Larry Koreen, Eleonora (Nora) M. Lad, Phoebe Lin, Joseph Nissim Martel, Neha (Shah) Serrano, Cindy Skalak, Lejla Vajzovic, Claxton Baer, Joyce Bryant, Sai Chavala, Michael Cusick, Shelley Day, Pouya Dayani, Justis Ehlers, Muge Kesen, Annie Lee, Alex Melamud, Jawad A. Qureshi, Adrienne Williams Scott, Robert F. See, Robert K. Shuler, Megan Wood, Steven Yeh, Alcides Fernandes, Deborah Gibbs, Donna Leef, Daniel F. Martin, Sunil Srivastava, Hosne Begum, Jeff Boring, Kristen L. Brotherson, Bryn Burkholder, Nicholas J. Butler, Dennis Cain, Mary A. Cook, David Emmert, Janis R. Graul, Mark Herring, Ashley Laing, Theresa G. Leung, Michael C. Mahon, Ahmafreza Moradi, Antonia Nwankwo, Trucian L. Ostheimer, Terry Reed, Ellen Arnold, Patricia M. Barnabie, Marie-Lynn Belair, Stephen G. Bolton, Joseph B. Brodine, Diane M. Brown, Lisa M. Brune, Anat Galor, Theresa Gan, Adam Jacobowitz, Meera Kapoor, Sanjay Kedhar, Stephen Kim, Henry A. Leder, Alison G. Livingston, Yavette Morton, Kisten Nolan, George B. Peters, Priscilla Soto, Ricardo Stevenson, Michelle Tarver-Carr, Yue Wang, C. Stephen Foster, Stephen D. Anesi, Linda Bruner, Olga Ceron, David M. Hinkle, Nancy Persons, Bailey Wentworth, Sarah Acevedo, Fahd Anzaar, Tom Cesca, Angelica Contero, Kayleigh Fitzpatrick, Faith Goronga, Jyothir Johnson, Karina Q. Lebron, Danielle Marvell, Chandra Morgan, Nita Patel, Jennifer Pinto, Sana S. Siddique, Janet Sprague, Taygan Yilmaz, H. Nida Sen, Michael Bono, Denise Cunningham, Darryl Hayes, Dessie Koutsandreas, Robert B. Nussenblatt, Patti R. Sherry, Gregory L. Short, Wendy Smith, Alana Temple, Allison Bamji, Hanna Coleman, Geetaniali Davuluri, Lisa Faia, Chloe Gottlieb, Guy V. Jirawuthiworavong, Julie C. Lew, Richard Mercer, Dominic Obiyor, Cheryl H. Perry, Natalia Potapova, Eric Weichel, Keith J. Wroblewski, Paul A. Latkany, Corinne Coonan, Andrea Honda, Monica Lorenzo-Latkany, Robert Masini, Susan Morell, Angela Nguyen, Jason Badamo, Kenneth M. Boyd, Matthew Enos, Jenny Gallardo, Jacek Jarczynski, Ji Yun Lee, Mirjana McGrosky, Ann Nour, Meredith Sanchez, Kate Steinberg, Richard J. Stawell, Lisa Breayley, Carly D'Sylva, Elizabeth Glatz, Lauren Hodgson, Lyndell Lim, Cecilia Ling, Rachel McIntosh, Julie Morrison (Ewing), Andrew Newton, Sutha Sanmugasundram, Richard Smallwood, Ehud Zamir, Nicola Hunt, Lisa Jones, Ignatios Koukouras, Suzanne Williams, Pauline T. Merrill, Danielle Carns, Len Richine, Denise L. Voskuil-Marre, Kisung Woo, Bruce Gaynes, Christina Giannoulis, Pam Hulvey, Elaine Kernbauer, Heena S. Khan, Sarah J. Levine, Scott Toennessen, Eileen Tonner, Robert C. Wang, Hank Aguado, Sally Arceneaux, Karen Duignan, Gary E. Fish, Nick Hesse, Diana Jaramillo, Michael Mackens, Jean Arnwine, David Callanan, Kimberly Cummings, Keith Gray, Susie Howden, Karin Mutz, Brenda Sanchez, Susan Lightman, Filis Ismetova, Ashley Prytherch, Sophie Seguin-Greenstein, Oren Tomkins, Asat Bar, Kate Edwards, Lavanish Joshi, Jiten Moraji, Ahmed Samy, Timothy Stubbs, Simon Taylor, Hamish Towler, Rebecca Tronnberg, Gary N. Holland, Robert D. Almanzor, Jose Castellanos, Jean Pierre Hubschman, Ann K. Johiro, Alla Kukuyev, Ralph D. Levinson, Colin A. McCannel, Susan S. Ransome, Christine R. Gonzales, Anurag Gupta, Partho S. Kalyani, Michael A. Kapamajian, Peter J. Kappel, Cheryl Arcinue, Janne Chuang, Giulio Barteselli, Glenn Currie, Veronica Mendoza, Debbie Powell, Tom Clark, Denine E. Cochran, William R. Freeman, Joshua Hedaya, Tiara Kemper, Igor Kozak, Jacqueline M. LeMoine, Megan E. Loughran, Luzandra Magana, Francesca Mojana, Victoria Morrison, Vivian Nguyen, Stephen F. Oster, Nisha Acharya, David Clay, Salena Lee, Mary Lew, Todd P. Margolis, Jay Stewart, Ira G. Wong, Debra Brown, Claire M. Khouri, Debra A. Goldstein, Andrea Birnbaum, Andrea Degillio, Gemma De la Rosa, Carmen Ramirez, Evica Simjanowski, Mariner Skelly, Anna L. Castro-Malek, Catherine E. Crooke, Melody Huntley, Katrina Nash, Marcia Niec, Dimitry Pyatetsky, Misel Ramirez, Zuzanna Rozenbajgier, Howard H. Tessler, Janet L. Davis, Thomas A. Albini, Marie Chin, Daniela Castaño, Ariana Elizondo, Macy Ho, Jaclyn L. Kovach, Richard C-S. Lin, Efrem Mandelcorn, Jackie K-D. Nguyen, Aura Pacini, Susan Pineda, David A. Pinto, Jose Rebimbas, Kimberly E. Stepien, Claudia Teran, Susan G. Elner, Hillary Bernard, Linda Fournier, Lindsay Godsey, Linda Goings, Richard Hackel, Moella Hesselgrave, K. Thiran Jayasundera, Robert Prusak, Pamela Titus, Melissa Bergeron, Reneé Blosser, Rebecca Brown, Carrie Chrisman-McClure, Julie R. Gothrup, Stephen J. Saxe, Deanna Sizemore, James Berger, Sheri Drossner, Joan C. DuPont, Albert M. Maguire, Janice Petner, Stephanie Engelhard, Tim Hopkins, Jonathan Lo, Dawn McCall, Monique McRay, Rebecca Salvo, Daniel Will, Wei Xu, Elizabeth Windsor, Laurel Weeney, Peter R. Pavan, Ken Albritton, JoAnn Leto, Brian Madow, Lori Mayor, Scott E. Pautler, Wyatt Saxon, Judy Soto, Burton Goldstein, Amy Klukoff, Lucy Lambright, Kim McDonald, Maria Ortiz, Susan Scymanky, Dee Dee Szalay, Narsing Rao, Tamara Davis, Jackie Douglass, Judith Linton, Margaret Padilla, Sylvia Ramos, Narsing A. Rao, Alexia Aguirre, Lawrence Chong, Lupe Cisneros, Elizabeth Corona, Dean Eliott, Amani Fawzi, Jesse Garcia, Rahul Khurana, Jennifer Lim, Rachel Mead, Julie H. Tsai, Albert Vitale, Paul S. Bernstein, Bonnie Carlstrom, James Gilman, Sandra Hanseen, Paula Morris, Diana Ramirez, Kimberley Wegner, John D. Sheppard, Brianne Anthony, Amber Casper, Lisa Felix-Kent, Jeanette Fernandez, Tari Johnson, Stephen V. Scoper, R. Denise Cole, Nancy Crawford, Lisa Franklin, Krista Hamelin, Jen Martin, Rebecca Marx, Gregory Schultz, Joseph Webb, Pamela Yeager, Rosa Y. Kim, Matthew S. Benz, David M. Brown, Eric Chen, Richard H. Fish, Eric Kegley, Laura Shawver, Tien P. Wong, Rebecca De La Garza, Shayla Friday (Hay), P. Kumar Rao, Eve Adcock, Rajendra S. Apte, Amy Baladenski, Rhonda Curtis, Sarah Gould, Amanda Hebden, Jamie Kambarian, Charla Meyer, Sam Pistorius, Melanie Quinn, Greg Rathert, Kevin J. Blinder, Ashley Hartz, Pam Light, Gaurav K. Shah, Russell VanGelder, Natalie Kurinij, Diane Brown, Nancy Prusakowski, Larry Hubbard, Janet Wittes, William E. Barlow, Marc Hochberg, Alice T. Lyon, Alan G. Palestine, Lee S. Simon, James T. Rosenbaum, Harmon Smith, Janet Davis, Jennifer Thorne, Nisha R. Acharya, Albert T. Vitale, Jeffrey A. Boring, Judith Alexander, Wai Ping Ng, David S. Friedman, Anna Adler, Alyce Burke, Joanne Katz, Susan Reed, Husam Ansari, Nicholas Cohen, Sanjukta Modak, Elizabeth A. Sugar, Alyce E. Burke, Lea T. Drye, Kevin Frick, JoAnn Katz, Thomas A. Louis, David Shade, Karen Pascual, Jill S. Slutsky-Sanon, Amanda Allen, Colby Glomp, Yasmin Hilal, Melissa A. Nieves, Maria Stevens, Francis Abreu, Anne Shanklin Casper, Cathleen Ewing, Adante Hart, Andrea Lears, Shirley Li, Jill Meinert, Vinnette Morrison, Deborah Nowakowski, Girlie Reyes, Dave M. Shade, Jacqueline Smith, Karen Steuernagle, Mark Van Natta, Vidya Venugopal, Tsung Yu, Paul Chen, Karen Collins, John Dodge, Kevin D. Frick, Rosetta Jackson, Christian Jimenez, Ariel Landers, Hope Livingston, Curtis L. Meinert, Sobharani Rayapudi, Weijiang Shen, Charles Shiflett, Rochelle Smith, Ada Tieman, James A. Tonascia, Richard Zheng, James Allan, Wendy K. Benz, Amitha Domalpally, Kristine A. Johnson, Dawn J. Myers, Jeong Won Pak, James L. Reimers, Geoffrey Chambers, Debra J. Christianson, Margaret A. Fleischli, Jacquelyn Freund, Vonnie Gama, Sapna Gangaputra, Kathleen E. Glander, Anne Goulding, Dennis Hafford, Susan E. Harris, Larry D. Hubbard, Jeffrey M. Joyce, Christina N. Kruse, Lauren Nagle, Gwyn E. Padden-Lechten, Alyson Pohlman, Amy Remm, Ruth A. Shaw, Peggy Sivesind, Dennis Thayer, Erika Treichel, Kelly J. Warren, Sheila M. Watson, Mary K. Webster, James K. White, Tara Wilhelmson, and Grace Zhang

Subjects
Male, medicine.medical_specialty, Time Factors, Triamcinolone acetonide, Visual acuity, genetic structures, Visual Acuity, Article, law.invention, Fluocinolone acetonide, Randomized controlled trial, law, Ophthalmology, Panuveitis, medicine, Humans, Glucocorticoids, Macular edema, Aged, Drug Implants, business.industry, Middle Aged, medicine.disease, eye diseases, Treatment Outcome, Female, sense organs, medicine.symptom, business, Tomography, Optical Coherence, Uveitis, Follow-Up Studies, medicine.drug, Cohort study
Abstract

To identify factors associated with best-corrected visual acuity (BCVA) presentation and 2-year outcome in 479 intermediate, posterior, and panuveitic eyes.Cohort study using randomized controlled trial data.Multicenter Uveitis Steroid Treatment (MUST) Trial masked BCVA measurements at baseline and at 2 years follow-up used gold-standard methods. Twenty-three clinical centers documented characteristics per protocol, which were evaluated as potential predictive factors for baseline BCVA and 2-year change in BCVA.Baseline factors significantly associated with reduced BCVA included age ≥50 vs50 years; posterior vs intermediate uveitis; uveitis duration10 vs6 years; anterior chamber (AC) flaregrade 0; cataract; macular thickening; and exudative retinal detachment. Over 2 years, eyes better than 20/50 and 20/50 or worse at baseline improved, on average, by 1 letter (P = .52) and 10 letters (P.001), respectively. Both treatment groups and all sites of uveitis improved similarly. Factors associated with improved BCVA included resolution of active AC cells, resolution of macular thickening, and cataract surgery in an initially cataractous eye. Factors associated with worsening BCVA included longer duration of uveitis (6-10 or10 vs6 years), incident AC flare, cataract at both baseline and follow-up, pseudophakia at baseline, persistence or incidence of vitreous haze, and incidence of macular thickening.Intermediate, posterior, and panuveitis have a similarly favorable prognosis with both systemic and fluocinolone acetonide implant treatment. Eyes with more prolonged/severe inflammatory damage and/or inflammatory findings initially or during follow-up have a worse visual acuity prognosis. The results indicate the value of implementing best practices in managing inflammation.

Published
2015
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4. Retinal Vessel Caliber Among People With Acquired Immunodeficiency Syndrome: Relationships With Visual Function

Author

Amani A. Fawzi, Gary N. Holland, Mark L. Van Natta, Jennifer E. Thorne, Larry D. Hubbard, Partho S. Kalyani, Sapna Gangaputra, and Ronald P. Danis

Subjects
Central retinal artery, medicine.medical_specialty, Central retinal vein, Visual acuity, genetic structures, business.industry, media_common.quotation_subject, Retinal, Fundus (eye), eye diseases, Visual field, Ophthalmology, chemistry.chemical_compound, medicine.anatomical_structure, chemistry, medicine.artery, Medicine, Optometry, Contrast (vision), medicine.symptom, business, media_common, Cohort study
Abstract

Purpose To evaluate relationships between retinal vessel caliber and tests of visual function among people with AIDS. Design Longitudinal, observational cohort study. Methods We evaluated data for participants without ocular opportunistic infections at initial examination (baseline) in the Longitudinal Studies of the Ocular Complications of AIDS (1998-2008). Visual function was evaluated with best-corrected visual acuity, Goldmann perimetry, automated perimetry (Humphrey Field Analyzer), and contrast sensitivity (CS) testing. Semi-automated grading of fundus photographs (1 eye/participant) determined central retinal artery equivalent (CRAE), central retinal vein equivalent (CRVE), and arteriole-to-venule ratio (AVR) at baseline. Multiple linear regression models, using forward selection, sought independent relationships between indices and visual function variables. Results Included were 1250 participants. Smaller AVR was associated with reduced visual field by Goldmann perimetry (P = .003) and worse mean deviation (P = .02) on automated perimetry and possibly with worse pattern standard deviation (PSD) on automated perimetry (P = .06). There was a weak association between smaller AVR and worse CS (P = .07). Relationships were independent of antiretroviral therapy and level of immunodeficiency (CD4+ T lymphocyte count, human immunodeficiency virus [HIV] RNA blood level). On longitudinal analysis, retinal vascular indices at baseline did not predict changes in visual function. Conclusions Variation in retinal vascular indices is associated with abnormal visual function in people with AIDS, manifested by visual field loss and possibly by reduced CS. Relationships are consistent with the hypothesis that HIV-related retinal vasculopathy is a contributing factor to vision dysfunction among HIV-infected individuals. Longitudinal studies are needed to determine whether changes in indices predict change in visual function.

Published
2012
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