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1 General aspects (0)   1.1 Epidemiology (12)   1.2 Population genetics (1)   1.3 Pathogenesis (1)   1.4 Quality of life (4)   1.5 Glaucomas as cause of blindness (2)   1.6 Prevention and screening (3) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (3)   2.2 Cornea (34)   2.3 Sclera (4)   2.4 Anterior chamber angle (3)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (6)     2.5.2 Schlemms canal (0)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (1)     2.6.1 Production (3)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (1)     2.6.3 Compostion (1)   2.7 Episcleral veins and venous pressure (1)   2.8 Iris (3)   2.9 Ciliary body (2)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (1)   2.13 Retina and retinal nerve fibre layer (25)   2.14 Optic disc (23)   2.15 Optic nerve (4)   2.16 Chiasma and retrochiasmal central nervous system (2)   2.17 Stem cells (0)   2.20 Other (2) 3 Laboratory methods (0)   3.1 Microscopy (1)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (3)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (1)     3.4.2 Gene studies (12)   3.5 Molecular biology incl. SiRNA (9)   3.6 Cellular biology (8)   3.7 Biochemistry (3)   3.8 Pharmacology (5)   3.9 Pathophysiology (8)   3.10 Immunobiology (4)   3.11 Pharmacogenetics (0)   3.12 Proteomics (0)   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 (37)   5.1 Rodent (0)   5.2 Primates (0)   5.3 Other (0) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (53)     6.1.1 Devices, techniques (0)     6.1.2 Fluctuation, circadian rhythms (0)     6.1.3 Factors affecting IOP (0)   6.2 Tonography, aqueous flow measurement (see also 2.6) (1)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (3)     6.3.2 Posterior segment (0)   6.4 Gonioscopy (3)   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 (10)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (9)   6.7 Electro-ophthalmodiagnosis (5)   6.8 Photography (0)     6.8.1 Anterior segment (0)     6.8.2 Posterior segment (7)   6.9 Computerized image analysis (2)     6.9.1 Laser scanning (21)       6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (0)       6.9.1.2 Confocal Scanning Laser Polarimetry (0)     6.9.2 Optical coherence tomography (12)       6.9.2.1 Anterior (0)       6.9.2.2 Posterior (0)     6.9.5 Other (3)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (0)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (13)   6.12 Ultrasonography and ultrasound biomicroscopy (6)   6.13 Provocative tests (2)   6.19 Telemedicine (1)   6.20 Progression (1)   6.30 Other (3) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (3)   8.2 Hypermetropia (0)   8.3 Contact lenses (0)   8.4 Refractive surgical procedures (1)   8.5 Other (0) 9 Clinical forms of glaucomas (0)   9.1 Developmental glaucomas (0)     9.1.1 Congenital glaucoma, Buphthalmos (5)     9.1.2 Juvenile glaucoma (10)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (4)     9.1.4 Other (1)   9.2 Primary open angle glaucomas (1)     9.2.1 Ocular hypertension (6)     9.2.2 Other risk factors for glaucoma (0)     9.2.3 Open angle glaucoma with elevated IOP (6)     9.2.4 Normal pressure glaucoma (12)   9.3 Primary angle closure glaucomas (5)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (4)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (4)     9.3.3 Plateau iris syndrome (1)     9.3.4 Primary angle closure suspect (0)     9.3.5 Primary angle closure (0)     9.3.10 Other (1)   9.4 Glaucomas associated with other ocular and systemic disorders (1)     9.4.1 Steroid-induced glaucoma (5)     9.4.2 Glaucomas associated with disorders of the cornea, conjunctiva, sclera (1)       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 (0)       9.4.2.5 Other (1)     9.4.3 Glaucomas associated with disorders of the iris and ciliary body (0)       9.4.3.1 Pigmentary glaucoma (3)       9.4.3.5 Other (1)     9.4.4 Glaucomas associated with disorders of the lens (1)       9.4.4.1 Exfoliation syndrome (6)       9.4.4.2 Glaucomas associated with cataracts (4)       9.4.4.3 Glaucomas associated with lens dislocation (4)       9.4.4.5 Other (1)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (0)       9.4.5.1 Neovascular glaucoma (9)       9.4.5.5 Other (0)     9.4.6 Glaucomas associated with inflammation, uveitis (4)     9.4.7 Glaucomas associated with ocular trauma (2)     9.4.8 Glaucomas associated with intraocular tumors (1)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (0)       9.4.10 Glaucomas associated with hemorrhage (0)     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 (1)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (0)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (0)     9.4.15 Glaucoma in relation to systemic disease (8)     9.4.20 Other (1) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (5) 11 Medical treatment (0)   11.1 General management, indication (9)   11.2 Cholinergic drugs (1)   11.3 Adrenergic drugs (0)     11.3.1 Epinephrine (0)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (6)     11.3.4 Betablocker (13)     11.3.5 Other (2)   11.4 Prostaglandins (31)   11.5 Carbonic anhydrase inhibitors (0)     11.5.1 Systemic (1)     11.5.2 Topical (8)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (0)   11.8 Neuroprotection (14)   11.9 Gene therapy (3)   11.13 Combination therapy (0)     11.13.1 Betablocker and pilocarpine (0)     11.13.2 Betablocker and carbon anhydrase inhibitor (0)     11.13.3 Betablocker and brimonidine (0)     11.13.4 Betablocker and prostaglandin (0)     11.13.5 Other (0)   11.14 Investigational drugs; pharmacological experiments (12)   11.15 Other drugs in relation to glaucoma (1)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (5)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (2)   11.20 Other (2) 12 Surgical treatment (0)   12.1 General management, indication (9)   12.2 Laser iridotomy (5)   12.3 Laser iridoplasty (3)   12.4 Laser trabeculoplasty and other laser treatment of the angle (8)   12.7 Surgical iridectomy (1)   12.8 Filtering surgery (9)     12.8.1 Without tube implant (7)     12.8.2 With tube implant or other drainage devices (12)     12.8.3 Non-perforating (9)     12.8.4 Using laser (0)     12.8.5 Other (2)     12.8.10 Woundhealing antifibrosis (17)     12.8.11 Complications, endophthalmitis (2)   12.9 Trabeculotomy, goniotomy (5)   12.10 Cyclodestruction (4)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (5)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (4)   12.14 Combined cataract extraction and glaucoma surgery (1)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (6)   12.15 Capsulotomy (1)   12.16 Vitrectomy (1)   12.17 Anesthesia (5)   12.20 Other (4) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (0)   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 (7) 15 Miscellaneous (4)

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Abstract #15250 Published in IGR 8-4

Trends in cost of major eye diseases to medicare, 1991 to 2000

Salm M; Belsky D; Sloan FA
American Journal of Ophthalmology 2006; 142: 976-982

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PURPOSE: To estimate impacts of physician-diagnosed eye diseases (age-related macular degeneration (AMD), cataract, diabetic retinopathy, and glaucoma) on Medicare payments in the periods 1991 to 1995 and 1996 to 2000. DESIGN: A retrospective cohort study to estimate program payments per capita and in total for each of the major eye diseases and the four eye diseases in total. METHODS: Data from the 1994 and 1999 National Long-Term Care Survey (NLTCS) and medical claims to Medicare from 1991 to 2000 were merged with the NLTCS. Medicare payments for eye-related procedures on persons with and without major eye diseases as reported on Medicare claims and self-reported data from NLTCS. RESULTS: Overall, the burden of major eye diseases was to increase Medicare spending by $4.8 billion (1999 USD) in 1991 to 1995 and by $4.5 billion in 1996 to 2000. The most expensive eye disease was cataract, costing Medicare $3.8 billion in 1991 to 1995 and $3 billion in 1996 to 2000. CONCLUSIONS: Prevalence of major eye diseases increased over time, but the effect of major eye diseases on Medicare payments decreased, mainly as a result of lower payments for cataract surgery in the later years.

Dr. M. Salm, University of Mannheim, Institute for the Economics of Aging, Mannheim, Germany

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Classification:

14 Costing studies; pharmacoeconomics

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