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1 General aspects (0)   1.1 Epidemiology (8)   1.2 Population genetics (2)   1.3 Pathogenesis (0)   1.4 Quality of life (17)   1.5 Glaucomas as cause of blindness (6)   1.6 Prevention and screening (17) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (13)   2.2 Cornea (27)   2.3 Sclera (13)   2.4 Anterior chamber angle (3)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (11)     2.5.2 Schlemms canal (4)     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 (0)     2.6.3 Compostion (6)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (3)   2.9 Ciliary body (0)   2.10 Lens (2)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (8)   2.13 Retina and retinal nerve fibre layer (18)   2.14 Optic disc (25)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (6)   2.17 Stem cells (3)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (2)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (0)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (21)   3.5 Molecular biology incl. SiRNA (21)   3.6 Cellular biology (28)   3.7 Biochemistry (23)   3.8 Pharmacology (12)   3.9 Pathophysiology (20)   3.10 Immunobiology (9)   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 (2) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (0)   5.1 Rodent (29)   5.2 Primates (1)   5.3 Other (9) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (1)     6.1.1 Devices, techniques (7)     6.1.2 Fluctuation, circadian rhythms (8)     6.1.3 Factors affecting IOP (6)   6.2 Tonography, aqueous flow measurement (see also 2.6) (0)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (0)     6.3.2 Posterior segment (0)   6.4 Gonioscopy (7)   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 (39)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (21)   6.7 Electro-ophthalmodiagnosis (5)   6.8 Photography (0)     6.8.1 Anterior segment (4)     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 (2)       6.9.1.2 Confocal Scanning Laser Polarimetry (0)     6.9.2 Optical coherence tomography (0)       6.9.2.1 Anterior (7)       6.9.2.2 Posterior (48)     6.9.5 Other (18)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (0)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (39)   6.12 Ultrasonography and ultrasound biomicroscopy (5)   6.13 Provocative tests (0)   6.19 Telemedicine (6)   6.20 Progression (19)   6.30 Other (25) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (3)   8.2 Hypermetropia (0)   8.3 Contact lenses (4)   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 (18)     9.1.2 Juvenile glaucoma (27)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (2)     9.1.4 Other (4)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (1)     9.2.2 Other risk factors for glaucoma (10)     9.2.3 Open angle glaucoma with elevated IOP (0)     9.2.4 Normal pressure glaucoma (16)   9.3 Primary angle closure glaucomas (0)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (4)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (5)     9.3.3 Plateau iris syndrome (1)     9.3.4 Primary angle closure suspect (0)     9.3.5 Primary angle closure (3)     9.3.10 Other (0)   9.4 Glaucomas associated with other ocular and systemic disorders (0)     9.4.1 Steroid-induced glaucoma (2)     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 (0)       9.4.2.5 Other (5)     9.4.3 Glaucomas associated with disorders of the iris and ciliary body (0)       9.4.3.1 Pigmentary glaucoma (4)       9.4.3.5 Other (5)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (16)       9.4.4.2 Glaucomas associated with cataracts (4)       9.4.4.3 Glaucomas associated with lens dislocation (1)       9.4.4.5 Other (0)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (0)       9.4.5.1 Neovascular glaucoma (5)       9.4.5.5 Other (6)     9.4.6 Glaucomas associated with inflammation, uveitis (10)     9.4.7 Glaucomas associated with ocular trauma (2)     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 (3)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (1)       9.4.11.2 Glaucomas in aphakia and pseudophakia (5)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (5)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (1)     9.4.15 Glaucoma in relation to systemic disease (37)     9.4.20 Other (4) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (4) 11 Medical treatment (0)   11.1 General management, indication (4)   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 (2)     11.3.4 Betablocker (1)     11.3.5 Other (0)   11.4 Prostaglandins (12)   11.5 Carbonic anhydrase inhibitors (0)     11.5.1 Systemic (0)     11.5.2 Topical (0)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (0)   11.8 Neuroprotection (25)   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 (2)     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 (18)   11.15 Other drugs in relation to glaucoma (9)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (25)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (11)   11.20 Other (0) 12 Surgical treatment (0)   12.1 General management, indication (3)   12.2 Laser iridotomy (1)   12.3 Laser iridoplasty (0)   12.4 Laser trabeculoplasty and other laser treatment of the angle (10)   12.7 Surgical iridectomy (0)   12.8 Filtering surgery (0)     12.8.1 Without tube implant (8)     12.8.2 With tube implant or other drainage devices (61)     12.8.3 Non-perforating (8)     12.8.4 Using laser (0)     12.8.5 Other (1)     12.8.10 Woundhealing antifibrosis (20)     12.8.11 Complications, endophthalmitis (13)   12.9 Trabeculotomy, goniotomy (39)   12.10 Cyclodestruction (16)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (5)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (24)   12.15 Capsulotomy (0)   12.16 Vitrectomy (3)   12.17 Anesthesia (1)   12.20 Other (1) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (11)   13.2 Outcome (0)     13.2.1 IOP (3)     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 (4) 15 Miscellaneous (43)

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Abstract #91553 Published in IGR 21-4

Novel Drug Delivery Systems Fighting Glaucoma: Formulation Obstacles and Solutions

Rahić O; Tucak A; Omerović N; Sirbubalo M; Hindija L; Hadžiabdić J; Vranić E
Pharmaceutics 2020; 13:

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Glaucoma is considered to be one of the biggest health problems in the world. It is the main cause of preventable blindness due to its asymptomatic nature in the early stages on the one hand and patients' non-adherence on the other. There are several approaches in glaucoma treatment, whereby this has to be individually designed for each patient. The first-line treatment is medication therapy. However, taking into account numerous disadvantages of conventional ophthalmic dosage forms, intensive work has been carried out on the development of novel drug delivery systems for glaucoma. This review aims to provide an overview of formulation solutions and strategies in the development of in situ gel systems, nanosystems, ocular inserts, contact lenses, collagen corneal shields, ocular implants, microneedles, and iontophoretic devices. The results of studies confirming the effectiveness of the aforementioned drug delivery systems were also briefly presented.

Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Sarajevo, Zmaja od Bosne 8, 71000 Sarajevo, Bosnia and Herzegovina.

Full article

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Classification:

11.16 Vehicles, delivery systems, pharmacokinetics, formulation (Part of: 11 Medical treatment)

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