advertisement

---

1 General aspects (0)   1.1 Epidemiology (8)   1.2 Population genetics (0)   1.3 Pathogenesis (1)   1.4 Quality of life (13)   1.5 Glaucomas as cause of blindness (4)   1.6 Prevention and screening (9) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (10)   2.2 Cornea (19)   2.3 Sclera (7)   2.4 Anterior chamber angle (7)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (15)     2.5.2 Schlemms canal (5)     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 (6)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (9)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (5)   2.9 Ciliary body (2)   2.10 Lens (0)   2.11 Vitreous body (1)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (6)   2.13 Retina and retinal nerve fibre layer (38)   2.14 Optic disc (36)   2.15 Optic nerve (4)   2.16 Chiasma and retrochiasmal central nervous system (14)   2.17 Stem cells (4)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (2)   3.2 Electron microscopy (0)   3.3 Immunohistochemistry (1)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (2)     3.4.2 Gene studies (20)   3.5 Molecular biology incl. SiRNA (20)   3.6 Cellular biology (41)   3.7 Biochemistry (20)   3.8 Pharmacology (17)   3.9 Pathophysiology (20)   3.10 Immunobiology (9)   3.11 Pharmacogenetics (0)   3.12 Proteomics (7)   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 (0)   3.20 Other (0) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (0)   5.1 Rodent (33)   5.2 Primates (3)   5.3 Other (9) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (0)     6.1.1 Devices, techniques (12)     6.1.2 Fluctuation, circadian rhythms (6)     6.1.3 Factors affecting IOP (16)   6.2 Tonography, aqueous flow measurement (see also 2.6) (2)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (0)     6.3.2 Posterior segment (1)   6.4 Gonioscopy (5)   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 (32)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (16)   6.7 Electro-ophthalmodiagnosis (10)   6.8 Photography (0)     6.8.1 Anterior segment (0)     6.8.2 Posterior segment (18)   6.9 Computerized image analysis (0)     6.9.1 Laser scanning (0)       6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (1)       6.9.1.2 Confocal Scanning Laser Polarimetry (1)     6.9.2 Optical coherence tomography (0)       6.9.2.1 Anterior (6)       6.9.2.2 Posterior (92)     6.9.5 Other (1)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (0)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (36)   6.12 Ultrasonography and ultrasound biomicroscopy (8)   6.13 Provocative tests (1)   6.19 Telemedicine (3)   6.20 Progression (26)   6.30 Other (38) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (11)   8.2 Hypermetropia (0)   8.3 Contact lenses (2)   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 (14)     9.1.2 Juvenile glaucoma (23)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (3)     9.1.4 Other (0)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (1)     9.2.2 Other risk factors for glaucoma (12)     9.2.3 Open angle glaucoma with elevated IOP (1)     9.2.4 Normal pressure glaucoma (21)   9.3 Primary angle closure glaucomas (0)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (8)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (5)     9.3.3 Plateau iris syndrome (2)     9.3.4 Primary angle closure suspect (1)     9.3.5 Primary angle closure (3)     9.3.10 Other (1)   9.4 Glaucomas associated with other ocular and systemic disorders (0)     9.4.1 Steroid-induced glaucoma (8)     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 (1)       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 (2)       9.4.3.5 Other (1)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (27)       9.4.4.2 Glaucomas associated with cataracts (3)       9.4.4.3 Glaucomas associated with lens dislocation (0)       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 (7)       9.4.5.5 Other (11)     9.4.6 Glaucomas associated with inflammation, uveitis (12)     9.4.7 Glaucomas associated with ocular trauma (2)     9.4.8 Glaucomas associated with intraocular tumors (2)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (2)       9.4.10 Glaucomas associated with hemorrhage (12)     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 (11)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (8)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (2)     9.4.15 Glaucoma in relation to systemic disease (57)     9.4.20 Other (1) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (7) 11 Medical treatment (0)   11.1 General management, indication (10)   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 (0)     11.3.4 Betablocker (1)     11.3.5 Other (0)   11.4 Prostaglandins (13)   11.5 Carbonic anhydrase inhibitors (1)     11.5.1 Systemic (1)     11.5.2 Topical (2)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (0)   11.8 Neuroprotection (38)   11.9 Gene therapy (1)   11.13 Combination therapy (2)     11.13.1 Betablocker and pilocarpine (1)     11.13.2 Betablocker and carbon anhydrase inhibitor (0)     11.13.3 Betablocker and brimonidine (1)     11.13.4 Betablocker and prostaglandin (0)     11.13.5 Other (0)   11.14 Investigational drugs; pharmacological experiments (9)   11.15 Other drugs in relation to glaucoma (33)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (22)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (11)   11.20 Other (3) 12 Surgical treatment (0)   12.1 General management, indication (9)   12.2 Laser iridotomy (0)   12.3 Laser iridoplasty (2)   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 (23)     12.8.2 With tube implant or other drainage devices (84)     12.8.3 Non-perforating (10)     12.8.4 Using laser (0)     12.8.5 Other (10)     12.8.10 Woundhealing antifibrosis (12)     12.8.11 Complications, endophthalmitis (26)   12.9 Trabeculotomy, goniotomy (27)   12.10 Cyclodestruction (11)   12.11 Cyclodialysis (1)   12.12 Cataract extraction (1)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (8)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (1)     12.14.3 Phacoemulsification (31)   12.15 Capsulotomy (0)   12.16 Vitrectomy (4)   12.17 Anesthesia (2)   12.20 Other (3) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (10)   13.2 Outcome (0)     13.2.1 IOP (1)     13.2.2 Visual field (1)       13.2.2.1 Progression (1)       13.2.2.2 Improvement (0)     13.2.3 Other (0) 14 Costing studies; pharmacoeconomics (4) 15 Miscellaneous (36)

---

Abstract #90572 Published in IGR 21-3

Referenced scans improve the repeatability of optical coherence tomography angiography measurements in normal and glaucoma eyes

Rao HL; Dasari S; Riyazuddin M; Lavanya R; P NK; Pradhan ZS; Moghimi S; Mansouri K; Webers CAB; Weinreb RN
British Journal of Ophthalmology 2021; 105: 1542-1547

---

AIM: To compare the repeatability of peripapillary perfusion density and flux index measurements on referenced and non-referenced optical microangiography (OMAG) scans in normal, glaucoma suspect and glaucoma eyes. METHODS: In a cross-sectional study, 48 eyes (33 subjects) underwent three repeat, non-referenced peripapillary OMAG scans in the same session and 43 eyes (25 subjects) underwent three referenced peripapillary OMAG scans. In the referenced scan group, repeat scans (second and the third scan) were acquired exactly on the baseline (first) scan using the 'track to prior scan' option on the device. Repeatability estimates of the mean and four-sector (temporal, superior, nasal and inferior) OMAG measurements on the non-referenced and referenced scans were assessed using within-subject coefficient of repeatability (CR) and variation (CV). RESULTS: CR (%) of peripapillary perfusion density measurements (range: 2.0-4.1) on non-referenced scans were significantly higher than that on referenced scans (range: 1.4-2.7). CV (%) on non-referenced and referenced scans ranged from 1.7 to 3.1 and from 1.2 to 2.1, respectively . CR of flux index on non-referenced and referenced scans ranged from 4.4 to 5.8 and from 3.6 to 4.8, respectively. CV on non-referenced and referenced scans ranged from 4.1 to 5.2 and from 3.3 to 4.5, respectively. CONCLUSIONS: Repeatability estimates of OMAG measurements were better on referenced scans compared with non-referenced scans. Perfusion density measurements had lower variability than flux index. OCTA-measured perfusion density of referenced scans is preferable for monitoring vascular change in glaucoma.

Narayana Nethralaya, Bangalore, India harshalaxmanarao@gmail.com.

Full article

---

Classification:

6.9.2.2 Posterior (Part of: 6 Clinical examination methods > 6.9 Computerized image analysis > 6.9.2 Optical coherence tomography)
6.11 Bloodflow measurements (Part of: 6 Clinical examination methods)

---

• ← Previous
• Next →

---