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1 General aspects (0)   1.1 Epidemiology (7)   1.2 Population genetics (1)   1.3 Pathogenesis (8)   1.4 Quality of life (5)   1.5 Glaucomas as cause of blindness (3)   1.6 Prevention and screening (14) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (10)   2.2 Cornea (17)   2.3 Sclera (8)   2.4 Anterior chamber angle (8)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (12)     2.5.2 Schlemms canal (1)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (2)       2.6.2.2 Uveoscleral (2)     2.6.3 Compostion (5)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (7)   2.9 Ciliary body (1)   2.10 Lens (0)   2.11 Vitreous body (1)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (5)   2.13 Retina and retinal nerve fibre layer (42)   2.14 Optic disc (26)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (7)   2.17 Stem cells (2)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (3)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (4)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (40)   3.5 Molecular biology incl. SiRNA (16)   3.6 Cellular biology (23)   3.7 Biochemistry (8)   3.8 Pharmacology (14)   3.9 Pathophysiology (1)   3.10 Immunobiology (4)   3.11 Pharmacogenetics (0)   3.12 Proteomics (1)   3.13 In vivo imaging (0)     3.13.1 Laser Scanning (0)       3.13.1.1 Confocal Scanning Laser Ophthalmoscopy (0)       3.13.1.2 Confocal Scanning Laser Polarimetry (0)     3.13.2 Optical Coherence Tomography (0)       3.13.2.1 Anterior Segment (0)       3.13.2.2 Posterior Segment (0)     3.13.3 RGC Imaging (0)     3.13.4 Other (0)   3.20 Other (0) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (0)   5.1 Rodent (19)   5.2 Primates (2)   5.3 Other (7) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (0)     6.1.1 Devices, techniques (5)     6.1.2 Fluctuation, circadian rhythms (3)     6.1.3 Factors affecting IOP (16)   6.2 Tonography, aqueous flow measurement (see also 2.6) (0)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (1)     6.3.2 Posterior segment (0)   6.4 Gonioscopy (2)   6.5 Ophthalmoscopy (0)   6.6 Visual field examination and other visual function tests (0)     6.6.1 Conventional manual (1)     6.6.2 Automated (19)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (11)   6.7 Electro-ophthalmodiagnosis (0)   6.8 Photography (0)     6.8.1 Anterior segment (3)     6.8.2 Posterior segment (3)   6.9 Computerized image analysis (0)     6.9.1 Laser scanning (0)       6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (7)       6.9.1.2 Confocal Scanning Laser Polarimetry (7)     6.9.2 Optical coherence tomography (0)       6.9.2.1 Anterior (9)       6.9.2.2 Posterior (50)     6.9.5 Other (5)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (0)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (11)   6.12 Ultrasonography and ultrasound biomicroscopy (6)   6.13 Provocative tests (4)   6.19 Telemedicine (0)   6.20 Progression (11)   6.30 Other (8) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (3)   8.2 Hypermetropia (1)   8.3 Contact lenses (0)   8.4 Refractive surgical procedures (0)   8.5 Other (0) 9 Clinical forms of glaucomas (0)   9.1 Developmental glaucomas (0)     9.1.1 Congenital glaucoma, Buphthalmos (9)     9.1.2 Juvenile glaucoma (13)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (7)     9.1.4 Other (0)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (0)     9.2.2 Other risk factors for glaucoma (11)     9.2.3 Open angle glaucoma with elevated IOP (0)     9.2.4 Normal pressure glaucoma (10)   9.3 Primary angle closure glaucomas (0)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (5)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (0)     9.3.3 Plateau iris syndrome (1)     9.3.4 Primary angle closure suspect (1)     9.3.5 Primary angle closure (8)     9.3.10 Other (0)   9.4 Glaucomas associated with other ocular and systemic disorders (0)     9.4.1 Steroid-induced glaucoma (4)     9.4.2 Glaucomas associated with disorders of the cornea, conjunctiva, sclera (0)       9.4.2.1 Iridocorneal endothelial syndrome (ICE, incl. irisatrophy) (1)       9.4.2.2 Posterior polymorphous dystrophy (0)       9.4.2.3 Fuchs' endothelial dystrophy (2)       9.4.2.5 Other (0)     9.4.3 Glaucomas associated with disorders of the iris and ciliary body (0)       9.4.3.1 Pigmentary glaucoma (1)       9.4.3.5 Other (0)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (10)       9.4.4.2 Glaucomas associated with cataracts (0)       9.4.4.3 Glaucomas associated with lens dislocation (0)       9.4.4.5 Other (2)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (0)       9.4.5.1 Neovascular glaucoma (8)       9.4.5.5 Other (1)     9.4.6 Glaucomas associated with inflammation, uveitis (7)     9.4.7 Glaucomas associated with ocular trauma (0)     9.4.8 Glaucomas associated with intraocular tumors (4)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (0)       9.4.10 Glaucomas associated with hemorrhage (2)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (2)       9.4.11.2 Glaucomas in aphakia and pseudophakia (7)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (11)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (4)     9.4.15 Glaucoma in relation to systemic disease (27)     9.4.20 Other (0) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (9) 11 Medical treatment (0)   11.1 General management, indication (1)   11.2 Cholinergic drugs (2)   11.3 Adrenergic drugs (0)     11.3.1 Epinephrine (1)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (3)     11.3.4 Betablocker (4)     11.3.5 Other (0)   11.4 Prostaglandins 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    12.8.1 Without tube implant (10)     12.8.2 With tube implant or other drainage devices (21)     12.8.3 Non-perforating (3)     12.8.4 Using laser (0)     12.8.5 Other (0)     12.8.10 Woundhealing antifibrosis (14)     12.8.11 Complications, endophthalmitis (7)   12.9 Trabeculotomy, goniotomy (3)   12.10 Cyclodestruction (3)   12.11 Cyclodialysis (1)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (3)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (1)   12.15 Capsulotomy (0)   12.16 Vitrectomy (0)   12.17 Anesthesia (2)   12.20 Other (5) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (1)   13.2 Outcome (0)     13.2.1 IOP (0)     13.2.2 Visual field (0)       13.2.2.1 Progression (0)       13.2.2.2 Improvement (0)     13.2.3 Other (0) 14 Costing studies; pharmacoeconomics (5) 15 Miscellaneous (17)

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Abstract #54809 Published in IGR 15-3

Prevalence of optic disc hemorrhages in rural central India. The Central Indian Eye and Medical Study

Jonas JB; Nangia V; Khare A; Kulkarni M; Matin A; Sinha A; Bhojwani K; Nangia P; Panda-Jonas S
PLoS ONE 2013; 8: e76154

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PURPOSE: To determine the frequency of optic disc hemorrhages in a rural Indian population. METHODS: The population-based Central Indian Eye and Medical Study included 4711 subjects. Mean age was 48.5±12.9 years (range: 30-100 years). Color optic disc photographs were examined. RESULTS: Optic disc photographs were available for 4570 (97.0%) subjects. Prevalence of disc hemorrhages was 17/8869 (0.19%; 95%CI:0.10,0.28) per eye and 16/4570 (0.35±0.09%; 95%CI:0.18,0.52) per subject. Prevalence of disc hemorrhages increased from 0.05% (95%CI:0.00,0.13) in the age group of 30-39 years to 0.25% (95CI:0.00,0.49) in the age group of 60-69 years and to 0.91% (95%CI:0.24,1.58) in the age group of 70+ years. After adjusting for older age, higher systolic blood pressure, diabetes mellitus, myopic refractive error, smaller neuroretinal rim area and thinner retinal nerve fiber layer, occurrence of disc hemorrhages was associated only with glaucomatous optic nerve damage (P<0.001; Odds ratio: 87; 95%CI:32,239). Eleven of the 17 (65%; 95%CI:39,90) disc hemorrhages were found in glaucomatous eyes. Out of 193 glaucomatous eyes, 11 eyes (5.7%; 95%CI:2.4,9.0) showed a disc hemorrhage. Out of the 8676 non-glaucomatous eyes, 6 eyes (0.07%; 95%CI:0.01,0.12) had an optic disc hemorrhage. CONCLUSIONS: Prevalence of disc hemorrhages (0.2% per eye; 0.4% per subject) in Indians aged 30+ years was strongly associated with glaucoma after adjustment for age, blood pressure and diabetes mellitus. A disc hemorrhage suggested glaucomatous optic nerve damage with a positive predictive value of 65%. About 6% of glaucomatous eyes showed a disc hemorrhage at the time of clinical examination highlighting the importance of optic disc hemorrhages for the diagnosis of glaucoma.

Suraj Eye Institute, Nagpur, India ; Department of Ophthalmology, Medical Faculty Mannheim of the Ruprecht-Karls-University, Heidelberg, Mannheim, Germany.

Full article

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Classification:

2.14 Optic disc (Part of: 2 Anatomical structures in glaucoma)
9.4.10 Glaucomas associated with hemorrhage (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders)
1.1 Epidemiology (Part of: 1 General aspects)

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