Optic disc hemorrhage in low-tension glaucoma |
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| Authors: | Y Kitazawa S Shirato T Yamamoto |
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| Affiliation: | 2. Department of Ophthalmology, University of Tokyo School of Medicine, Tokyo, Japan;1. Vanderbilt University Medical Center, Department of Ophthalmology, Nashville, Tennessee;2. Wilmer Eye Institute, Johns Hopkins Hospital, Johns Hopkins University School of Medicine, Baltimore, Maryland;2. Department of Medicine, Rheumatology, University of Toronto Medical School, Toronto, Ont;3. Department of Medicine, Neurology, University of Toronto Medical School, Toronto, Ont;4. Harvard Medical School, Beth Israel Deaconess Hospital, Boston Department of Ophthalmology, Boston, MA.;1. Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland;2. Malone Center of Engineering in Healthcare, Johns Hopkins University School of Medicine, Baltimore, Maryland;3. Massachusetts Eye and Ear, Harvard Medical School, Boston, Massachusetts;1. Global Glaucoma Institute, Campus Northeast, 64060 Monterrey, Nuevo León, Mexico;2. School of Medicine and University Hospital Dr. Jose Eleuterio Gonzalez, Universidad Autónoma de Nuevo León, Monterrey, Nuevo León, Mexico;1. Vision, Imaging and Performance Laboratory, Duke Eye Center and Department of Ophthalmology, Duke University, Durham, North Carolina;2. Campbell University School of Medicine, Lillington, North Carolina;3. University of Hawaii School of Medicine, Honolulu, Hawaii;4. Department of Electrical and Computer Engineering, Pratt School of Engineering, Duke University, Durham, North Carolina;1. Department of Ophthalmology, Massachusetts Eye and Ear Infirmary, Harvard Medical School, Boston, Massachusetts;2. Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri;3. Channing Division of Network Medicine, Brigham and Women''s Hospital, Harvard Medical School, Boston, Massachusetts |
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| Abstract: | The prevalence of optic disc hemorrhage (DH) was determined in groups consisting of 192 primary open-angle glaucoma, 113 primary angle-closure glaucoma, 78 low-tension glaucoma, and 473 normal patients. The DH was mot prevalent (20.5%) among low tension glaucoma patients (chi 2; P less than 0.001). The epidemiological features of DH were studied in 58 low-tension glaucoma patients by examining them every one to four weeks from 6 to 32 months. All the DHs but one took place within a seven-month follow-up and the incidence of DH varies from 0 to 10% during the 32-month follow-up period. The overall incidence of DH was 24.8% during that period of time. Recurrences were seen in 64% of the eyes and 92% of these occurred within 28 weeks following the previous hemorrhages. Ninety-two percent of all DHs were present for at least four weeks. Low-tension glaucoma eyes seem to consist of two different groups; one which develops recurrent DH and one which is very unlikely to bleed through its entire course. |
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| Keywords: | disc hemorrhage glaucoma low tension glaucoma optic disc |
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