advertisement

---

1 General aspects (1)   1.1 Epidemiology (14)   1.2 Population genetics (2)   1.3 Pathogenesis (1)   1.4 Quality of life (20)   1.5 Glaucomas as cause of blindness (8)   1.6 Prevention and screening (13) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (10)   2.2 Cornea (23)   2.3 Sclera (16)   2.4 Anterior chamber angle (7)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (15)     2.5.2 Schlemms canal (1)     2.5.3 Scleral outlet channels (1)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (1)       2.6.2.1 Trabecular meshwork (4)       2.6.2.2 Uveoscleral (1)     2.6.3 Compostion (6)   2.7 Episcleral veins and venous pressure (2)   2.8 Iris (6)   2.9 Ciliary body (0)   2.10 Lens (0)   2.11 Vitreous body (0)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (18)   2.13 Retina and retinal nerve fibre layer (37)   2.14 Optic disc (42)   2.15 Optic nerve (2)   2.16 Chiasma and retrochiasmal central nervous system (13)   2.17 Stem cells (5)   2.20 Other (0) 3 Laboratory methods (0)   3.1 Microscopy (0)   3.2 Electron microscopy (2)   3.3 Immunohistochemistry (2)   3.4 Molecular genetics (0)     3.4.1 Linkage studies (0)     3.4.2 Gene studies (30)   3.5 Molecular biology incl. SiRNA (19)   3.6 Cellular biology (36)   3.7 Biochemistry (10)   3.8 Pharmacology (21)   3.9 Pathophysiology (14)   3.10 Immunobiology (6)   3.11 Pharmacogenetics (0)   3.12 Proteomics (3)   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 (1)     3.13.4 Other (2)   3.20 Other (0) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (0)   5.1 Rodent (33)   5.2 Primates (6)   5.3 Other (7) 6 Clinical examination methods (0)   6.1 Intraocular pressure measurement; factors affecting IOP (0)     6.1.1 Devices, techniques (19)     6.1.2 Fluctuation, circadian rhythms (10)     6.1.3 Factors affecting IOP (22)   6.2 Tonography, aqueous flow measurement (see also 2.6) (1)   6.3 Biomicroscopy (slitlamp) (0)     6.3.1 Anterior segment (2)     6.3.2 Posterior segment (4)   6.4 Gonioscopy (15)   6.5 Ophthalmoscopy (1)   6.6 Visual field examination and other visual function tests (0)     6.6.1 Conventional manual (1)     6.6.2 Automated (34)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (13)   6.7 Electro-ophthalmodiagnosis (6)   6.8 Photography (0)     6.8.1 Anterior segment (2)     6.8.2 Posterior segment (13)   6.9 Computerized image analysis (0)     6.9.1 Laser scanning (0)       6.9.1.1 Confocal Scanning Laser Ophthalmoscopy (4)       6.9.1.2 Confocal Scanning Laser Polarimetry (0)     6.9.2 Optical coherence tomography (0)       6.9.2.1 Anterior (13)       6.9.2.2 Posterior (68)     6.9.5 Other (38)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (1)     6.10.2 Posterior segment (1)   6.11 Bloodflow measurements (35)   6.12 Ultrasonography and ultrasound biomicroscopy (6)   6.13 Provocative tests (2)   6.19 Telemedicine (6)   6.20 Progression (14)   6.30 Other (37) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (4)   8.2 Hypermetropia (1)   8.3 Contact lenses (4)   8.4 Refractive surgical procedures (0)   8.5 Other (0) 9 Clinical forms of glaucomas (0)   9.1 Developmental glaucomas (0)     9.1.1 Congenital glaucoma, Buphthalmos (15)     9.1.2 Juvenile glaucoma (31)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (8)     9.1.4 Other (1)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (0)     9.2.2 Other risk factors for glaucoma (4)     9.2.3 Open angle glaucoma with elevated IOP (0)     9.2.4 Normal pressure glaucoma (21)   9.3 Primary angle closure glaucomas (0)     9.3.1 Acute primary angle closure glaucoma (pupillary block) (9)     9.3.2 Chronic primary angle closure glaucoma (pupillary block) (6)     9.3.3 Plateau iris syndrome (2)     9.3.4 Primary angle closure suspect (2)     9.3.5 Primary angle closure (6)     9.3.10 Other (0)   9.4 Glaucomas associated with other ocular and systemic disorders (0)     9.4.1 Steroid-induced glaucoma (12)     9.4.2 Glaucomas associated with disorders of the cornea, conjunctiva, sclera (0)       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 (2)     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 (3)     9.4.4 Glaucomas associated with disorders of the lens (0)       9.4.4.1 Exfoliation syndrome (20)       9.4.4.2 Glaucomas associated with cataracts (3)       9.4.4.3 Glaucomas associated with lens dislocation (0)       9.4.4.5 Other (2)     9.4.5 Glaucomas associated with disorders of the retina, choroid and vitreous (0)       9.4.5.1 Neovascular glaucoma (6)       9.4.5.5 Other (5)     9.4.6 Glaucomas associated with inflammation, uveitis (19)     9.4.7 Glaucomas associated with ocular trauma (1)     9.4.8 Glaucomas associated with intraocular tumors (5)     9.4.9 Glaucomas associated with elevated episcleral venous pressure (1)       9.4.10 Glaucomas associated with hemorrhage (6)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (5)       9.4.11.2 Glaucomas in aphakia and pseudophakia (12)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (7)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (3)     9.4.15 Glaucoma in relation to systemic disease (45)     9.4.20 Other (4) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (7) 11 Medical treatment (0)   11.1 General management, indication (4)   11.2 Cholinergic drugs (0)   11.3 Adrenergic drugs (1)     11.3.1 Epinephrine (0)     11.3.2 Thymoxamine, dapiprazole (0)     11.3.3 Apraclonidine, brimonidine (3)     11.3.4 Betablocker (4)     11.3.5 Other (0)   11.4 Prostaglandins (12)   11.5 Carbonic anhydrase inhibitors (0)     11.5.1 Systemic (1)     11.5.2 Topical (2)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (0)   11.8 Neuroprotection (33)   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 (4)   11.14 Investigational drugs; pharmacological experiments (25)   11.15 Other drugs in relation to glaucoma (10)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (15)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (8)   11.20 Other (0) 12 Surgical treatment (1)   12.1 General management, indication (4)   12.2 Laser iridotomy (3)   12.3 Laser iridoplasty (2)   12.4 Laser trabeculoplasty and other laser treatment of the angle (9)   12.7 Surgical iridectomy (0)   12.8 Filtering surgery (0)     12.8.1 Without tube implant (17)     12.8.2 With tube implant or other drainage devices (68)     12.8.3 Non-perforating (13)     12.8.4 Using laser (0)     12.8.5 Other (1)     12.8.10 Woundhealing antifibrosis (17)     12.8.11 Complications, endophthalmitis (15)   12.9 Trabeculotomy, goniotomy (25)   12.10 Cyclodestruction (11)   12.11 Cyclodialysis (1)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (14)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (19)   12.15 Capsulotomy (0)   12.16 Vitrectomy (2)   12.17 Anesthesia (2)   12.20 Other (2) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (2)   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 (8) 15 Miscellaneous (37)

---

Abstract #82493 Published in IGR 20-4

Heritability of pachymetric indices using Pentacam Scheimflug imaging

Hashemi H; Yekta A; Heydarian S; Ostadimoghaddam H; Aghamirsalim M; Derakhshan A; Khabazkhoob M
British Journal of Ophthalmology 2019; 0:

---

AIM: To investigate the heritability of corneal thickness at the apex, entrance pupil centre, thinnest point, pachymetric progression index (PPI) and maximum Ambrósio relational thickness (ART) using Pentacam. METHODS: The present cross-sectional and population-based study was conducted in two rural districts that were selected randomly. Individuals 5 years and older and data from households where one of the parents and at least one child participated in the study were considered for this analysis. All subjects were examined for visual acuity, refraction, biomicroscopy and, finally, Pentacam imaging. The heritability estimate was used to calculate familial aggregation of pachymetric indices. RESULTS: Of the 3851 selected individuals, 3314 participated in the study. After applying the exclusion criteria, a total of 1383 individuals from 382 households were included in the analysis; of these, 754 (54.52%) were female. The mean age of the subjects was 37.23±19.35 years (from 6 to 93 years). The highest heritability was observed for corneal thickness at the apex (85%), and the lowest was for ART (27.62%). The heritability of other studied parameters, including corneal thickness at the entrance pupil centre, thinnest point and average PPI, was 82.0%, 77.0% and 31.49%, respectively. CONCLUSION: The high heritability of the mentioned pachymetric parameters confirms the high correlation between these phenotypes and genetic factors and calls for genetic and molecular research to find related genes and to understand the aetiology of associated diseases, especially glaucoma and keratoconus.

Noor Research Center for Ophthalmic Epidemiology, Noor Eye Hospital, Tehran, Iran, Tehran, Republic of Iran.

Full article

---

Classification:

6.8.2 Posterior segment (Part of: 6 Clinical examination methods > 6.8 Photography)
2.2 Cornea (Part of: 2 Anatomical structures in glaucoma)

---

• ← Previous
• Next →

---