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1 General aspects (0)   1.1 Epidemiology (4)   1.2 Population genetics (15)   1.3 Pathogenesis (11)   1.4 Quality of life (3)   1.5 Glaucomas as cause of blindness (1)   1.6 Prevention and screening (0) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (0)   2.2 Cornea (3)   2.3 Sclera (3)   2.4 Anterior chamber angle (0)   2.5 Meshwork (7)     2.5.1 Trabecular meshwork (0)     2.5.2 Schlemms canal (0)     2.5.3 Scleral outlet channels (0)   2.6 Aqueous humor dynamics (2)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (0)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (0)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (0)   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 (5)   2.14 Optic disc (14)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (4)   2.17 Stem cells (0)   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 (0)   3.5 Molecular biology incl. SiRNA (0)   3.6 Cellular biology (0)   3.7 Biochemistry (0)   3.8 Pharmacology (0)   3.9 Pathophysiology (0)   3.10 Immunobiology (0)   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 (0)   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 (5)     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) (0)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (0)     6.3.2 Posterior segment (0)   6.4 Gonioscopy (0)   6.5 Ophthalmoscopy (0)   6.6 Visual field examination and other visual function tests (0)     6.6.1 Conventional manual (0)     6.6.2 Automated (5)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (6)   6.7 Electro-ophthalmodiagnosis (1)   6.8 Photography (0)     6.8.1 Anterior segment (1)     6.8.2 Posterior segment (17)   6.9 Computerized image analysis (0)     6.9.1 Laser scanning (0)       6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (0)       6.9.1.2 Confocal Scanning Laser Polarimetry (0)     6.9.2 Optical coherence tomography (0)       6.9.2.1 Anterior (0)       6.9.2.2 Posterior (0)     6.9.5 Other (0)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (0)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (0)   6.12 Ultrasonography and ultrasound biomicroscopy (0)   6.13 Provocative tests (0)   6.19 Telemedicine (1)   6.20 Progression (0)   6.30 Other (0) 8 Refractive errors in relation to glaucoma (1)   8.1 Myopia (1)   8.2 Hypermetropia (1)   8.3 Contact lenses (0)   8.4 Refractive surgical procedures (0)   8.5 Other (0) 9 Clinical forms of glaucomas (1)   9.1 Developmental glaucomas (2)     9.1.1 Congenital glaucoma, Buphthalmos (1)     9.1.2 Juvenile glaucoma (0)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (1)     9.1.4 Other (1)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (1)     9.2.2 Other risk factors for glaucoma (2)     9.2.3 Open angle glaucoma with elevated IOP (0)     9.2.4 Normal pressure glaucoma (3)   9.3 Primary angle closure glaucomas (0)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (0)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (1)     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 (2)   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 (1)       9.4.2.1 Iridocorneal endothelial syndrome (ICE, incl. irisatrophy) (0)       9.4.2.2 Posterior polymorphous dystrophy (0)       9.4.2.3 Fuchs' endothelial dystrophy (0)       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 (1)       9.4.4.3 Glaucomas associated with lens dislocation (0)       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 (1)       9.4.5.5 Other (0)     9.4.6 Glaucomas associated with inflammation, uveitis (2)     9.4.7 Glaucomas associated with ocular trauma (0)     9.4.8 Glaucomas associated with intraocular tumors (2)     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 (1)       9.4.11.1 Ciliary block (malignant) glaucoma (1)       9.4.11.2 Glaucomas in aphakia and pseudophakia (0)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (4)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (1)     9.4.15 Glaucoma in relation to systemic disease (2)     9.4.20 Other (0) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (0) 11 Medical treatment (1)   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 (8)     11.3.4 Betablocker (5)     11.3.5 Other (0)   11.4 Prostaglandins (21)   11.5 Carbonic anhydrase inhibitors (0)     11.5.1 Systemic (0)     11.5.2 Topical (6)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (1)   11.8 Neuroprotection (5)   11.9 Gene therapy (2)   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 (4)   11.15 Other drugs in relation to glaucoma (3)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (4)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (0)   11.20 Other (2) 12 Surgical treatment (1)   12.1 General management, indication (3)   12.2 Laser iridotomy (4)   12.3 Laser iridoplasty (0)   12.4 Laser trabeculoplasty and other laser treatment of the angle (0)   12.7 Surgical iridectomy (0)   12.8 Filtering surgery (0)     12.8.1 Without tube implant (3)     12.8.2 With tube implant or other drainage devices (10)     12.8.3 Non-perforating (7)     12.8.4 Using laser (1)     12.8.5 Other (3)     12.8.10 Woundhealing antifibrosis (10)     12.8.11 Complications, endophthalmitis (6)   12.9 Trabeculotomy, goniotomy (1)   12.10 Cyclodestruction (3)   12.11 Cyclodialysis (0)   12.12 Cataract extraction (1)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (1)     12.12.3 Phacoemulsification (0)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (1)     12.14.3 Phacoemulsification (0)   12.15 Capsulotomy (0)   12.16 Vitrectomy (0)   12.17 Anesthesia (5)   12.20 Other (0) 13 Therapeutic prognosis and outcome (1)   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 (1) 15 Miscellaneous (4)

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Abstract #18280 Published in IGR 3-3

Quantitation of mitomycin C in human ocular tissues by high-performance liquid chromatography-photo-diode array detection

Xiong X; Lim BA; Lat-Luna M; Chew P; Tan D
Journal of Chromatography. B. Biomedical Sciences and Applications 2001; 755: 65-72

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A chromatographic method, which can quantitate mitomycin C (MMC) together with two antiglaucoma drugs, is described. The separation of MMC, alphagan, and timolol was performed on a reversed-phase C18 column with water-methanol-trifluoroacetic acid (65:35:0.01, v/v) as the mobile phase. By monitoring at 360, 248 and 296 nm, the lower limits of detection for MMC, alphagan and timolol are, respectively, 1.0, 2.0 and 5.0 ng (injection amount) at three-time S/N ratio. The dynamic ranges of quantitation for the three drugs are, respectively, 1.0 ng-10.0 μg, 2.0 ng-10.0 μg and 5.0 ng-10.0 μg with linearity being larger than 0.9960. This method was applied to the determination of MMC levels in Tenon's and trabeculum tissues of ten glaucoma patients. MMC levels in these tissues, which were obtained from glaucoma filtering surgery, were determined following a multiple extraction with methanol. The recovery of MMC for a two-batch extraction was better than 91.2%. The reproducibility of measurement for the MMC levels in these tissues is 2.5-6.0% RSD for triplicate injections. The intra-day variation of retention times for the MMC peaks was less than 1.6% RSD (n = 3). The inter-day variation of retention times for the MMC peaks was less than 4.8% RSD (n = 3). MMC was detectable in three trabeculum tissues out of ten cases (ranging from 0.8-25.5 ng/mg specimen), while MMC was detected in nine Tenon's tissues out of ten cases (ranging from 0.3-21.1 ng/mg specimen). The results obtained show that the method is sensitive and selective for the quantitation of MMC.

Dr X. Xiong, Singapore Eye Research Institute, Singapore. seri_xx@hotmail.com

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Classification:

12.8.10 Woundhealing antifibrosis (Part of: 12 Surgical treatment > 12.8 Filtering surgery)

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