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1 General aspects (0)   1.1 Epidemiology (4)   1.2 Population genetics (0)   1.3 Pathogenesis (0)   1.4 Quality of life (14)   1.5 Glaucomas as cause of blindness (7)   1.6 Prevention and screening (6) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (5)   2.2 Cornea (14)   2.3 Sclera (9)   2.4 Anterior chamber angle (8)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (6)     2.5.2 Schlemms canal (2)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (1)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (1)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (6)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (5)   2.9 Ciliary body (1)   2.10 Lens (1)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (13)   2.13 Retina and retinal nerve fibre layer (27)   2.14 Optic disc (29)   2.15 Optic nerve (3)   2.16 Chiasma and retrochiasmal central nervous system (3)   2.17 Stem cells (5)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (0)   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 (8)   3.6 Cellular biology (21)   3.7 Biochemistry (14)   3.8 Pharmacology (8)   3.9 Pathophysiology (11)   3.10 Immunobiology (10)   3.11 Pharmacogenetics (0)   3.12 Proteomics (2)   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 (1)     3.13.3 RGC Imaging (1)     3.13.4 Other (1)   3.20 Other (0) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (0)   5.1 Rodent (22)   5.2 Primates (2)   5.3 Other (5) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (0)     6.1.1 Devices, techniques (11)     6.1.2 Fluctuation, circadian rhythms (6)     6.1.3 Factors affecting IOP (12)   6.2 Tonography, aqueous flow measurement (see also 2.6) (0)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 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associated with intraocular tumors (4)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (0)       9.4.10 Glaucomas associated with hemorrhage (6)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (3)       9.4.11.2 Glaucomas in aphakia and pseudophakia (6)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (9)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (4)     9.4.15 Glaucoma in relation to systemic disease (31)     9.4.20 Other (1) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (4) 11 Medical treatment (0)   11.1 General management, indication (8)   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 (7)     11.3.5 Other (0)   11.4 Prostaglandins 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    12.8.1 Without tube implant (12)     12.8.2 With tube implant or other drainage devices (39)     12.8.3 Non-perforating (7)     12.8.4 Using laser (2)     12.8.5 Other (3)     12.8.10 Woundhealing antifibrosis (15)     12.8.11 Complications, endophthalmitis (3)   12.9 Trabeculotomy, goniotomy (10)   12.10 Cyclodestruction (5)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (6)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (5)   12.15 Capsulotomy (0)   12.16 Vitrectomy (2)   12.17 Anesthesia (1)   12.20 Other (2) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (6)   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 #73040 Published in IGR 18-4

Shared and Differential Retinal Responses against Optic Nerve Injury and Ocular Hypertension

Vidal-Sanz M; Galindo-Romero C; Valiente-Soriano FJ; Nadal-Nicolás FM; Ortin-Martinez A; Rovere G; Salinas-Navarro M; Lucas-Ruiz F; Sanchez-Migallon MC; Sobrado-Calvo P; Aviles-Trigueros M; Villegas-Pérez MP; Agudo-Barriuso M
Frontiers in neuroscience 2017; 11: 235

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Glaucoma, one of the leading causes of blindness worldwide, affects primarily retinal ganglion cells (RGCs) and their axons. The pathophysiology of glaucoma is not fully understood, but it is currently believed that damage to RGC axons at the optic nerve head plays a major role. Rodent models to study glaucoma include those that mimic either ocular hypertension or optic nerve injury. Here we review the anatomical loss of the general population of RGCs (that express Brn3a; Brn3a(+)RGCs) and of the intrinsically photosensitive RGCs (that express melanopsin; m(+)RGCs) after chronic (LP-OHT) or acute (A-OHT) ocular hypertension and after complete intraorbital optic nerve transection (ONT) or crush (ONC). Our studies show that all of these insults trigger RGC death. Compared to Brn3a(+)RGCs, m(+)RGCs are more resilient to ONT, ONC, and A-OHT but not to LP-OHT. There are differences in the course of RGC loss both between these RGC types and among injuries. An important difference between the damage caused by ocular hypertension or optic nerve injury appears in the outer retina. Both axotomy and LP-OHT induce selective loss of RGCs but LP-OHT also induces a protracted loss of cone photoreceptors. This review outlines our current understanding of the anatomical changes occurring in rodent models of glaucoma and discusses the advantages of each one and their translational value.

Departamento de Oftalmología, Facultad de Medicina, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria Virgen de la ArrixacaMurcia, Spain.

Full article

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Classification:

3.6 Cellular biology (Part of: 3 Laboratory methods)
3.9 Pathophysiology (Part of: 3 Laboratory methods)
11.8 Neuroprotection (Part of: 11 Medical treatment)
5.1 Rodent (Part of: 5 Experimental glaucoma; animal models)

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