advertisement

---

1 General aspects (0)   1.1 Epidemiology (15)   1.2 Population genetics (0)   1.3 Pathogenesis (0)   1.4 Quality of life (19)   1.5 Glaucomas as cause of blindness (12)   1.6 Prevention and screening (11) 2 Anatomical structures in glaucoma (0)   2.1 Conjunctiva (11)   2.2 Cornea (16)   2.3 Sclera (8)   2.4 Anterior chamber angle (2)   2.5 Meshwork (0)     2.5.1 Trabecular meshwork (6)     2.5.2 Schlemms canal (3)     2.5.3 Scleral outlet channels (2)   2.6 Aqueous humor dynamics (0)     2.6.1 Production (0)     2.6.2 Outflow (0)       2.6.2.1 Trabecular meshwork (3)       2.6.2.2 Uveoscleral (0)     2.6.3 Compostion (1)   2.7 Episcleral veins and venous pressure (0)   2.8 Iris (5)   2.9 Ciliary body (3)   2.10 Lens (0)   2.11 Vitreous body (1)   2.12 Choroid, peripapillary choroid, peripapillary atrophy (9)   2.13 Retina and retinal nerve fibre layer (25)   2.14 Optic disc (26)   2.15 Optic nerve (3)   2.16 Chiasma and retrochiasmal central nervous system (6)   2.17 Stem cells (5)   2.20 Other (1) 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 (22)   3.5 Molecular biology incl. SiRNA (22)   3.6 Cellular biology (26)   3.7 Biochemistry (6)   3.8 Pharmacology (15)   3.9 Pathophysiology (7)   3.10 Immunobiology (6)   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 (0) 4 Tissue culture of ocular cells (0) 5 Experimental glaucoma; animal models (0)   5.1 Rodent (24)   5.2 Primates (1)   5.3 Other (5) 6 Clinical examination methods (1)   6.1 Intraocular pressure measurement; factors affecting IOP (0)     6.1.1 Devices, techniques (10)     6.1.2 Fluctuation, circadian rhythms (6)     6.1.3 Factors affecting IOP (17)   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 (2)   6.5 Ophthalmoscopy (0)   6.6 Visual field examination and other visual function tests (0)     6.6.1 Conventional manual (2)     6.6.2 Automated (23)     6.6.3 Special methods (e.g. color, contrast, SWAP etc.) (7)   6.7 Electro-ophthalmodiagnosis (6)   6.8 Photography (0)     6.8.1 Anterior segment (2)     6.8.2 Posterior segment (8)   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 (8)       6.9.2.2 Posterior (52)     6.9.5 Other (8)   6.10 Fluorescein (ICG) angiography (0)     6.10.1 Anterior segment (1)     6.10.2 Posterior segment (0)   6.11 Bloodflow measurements (27)   6.12 Ultrasonography and ultrasound biomicroscopy (3)   6.13 Provocative tests (0)   6.19 Telemedicine (3)   6.20 Progression (8)   6.30 Other (7) 8 Refractive errors in relation to glaucoma (0)   8.1 Myopia (7)   8.2 Hypermetropia (0)   8.3 Contact lenses (0)   8.4 Refractive surgical procedures (3)   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 (22)     9.1.3 Syndromes of Axenfeld, Rieger, Peters, aniridia (4)     9.1.4 Other (0)   9.2 Primary open angle glaucomas (0)     9.2.1 Ocular hypertension (3)     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 (12)   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) (8)     9.3.3 Plateau iris syndrome (0)     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 (4)     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 (5)       9.4.3.5 Other (3)     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 (1)       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 (5)       9.4.5.5 Other (7)     9.4.6 Glaucomas associated with inflammation, uveitis (10)     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 (1)       9.4.10 Glaucomas associated with hemorrhage (3)     9.4.11 Glaucomas following intraocular surgery (0)       9.4.11.1 Ciliary block (malignant) glaucoma (4)       9.4.11.2 Glaucomas in aphakia and pseudophakia (10)       9.4.11.3 Epithelial, fibrous, and endothelial proliferation (0)       9.4.11.4 Glaucomas associated with corneal surgery (11)       9.4.11.5 Glaucomas associated with vitreoretinal surgery (4)     9.4.15 Glaucoma in relation to systemic disease (33)     9.4.20 Other (3) 10 Differential diagnosis e.g. anterior and posterior ischemic optic neuropathy (3) 11 Medical treatment (0)   11.1 General management, indication (7)   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 (3)     11.3.4 Betablocker (2)     11.3.5 Other (0)   11.4 Prostaglandins (12)   11.5 Carbonic anhydrase inhibitors (1)     11.5.1 Systemic (0)     11.5.2 Topical (0)   11.6 Osmotic treatment (0)   11.7 Treatment of bloodflow (0)   11.8 Neuroprotection (24)   11.9 Gene therapy (6)   11.13 Combination therapy (0)     11.13.1 Betablocker and pilocarpine (0)     11.13.2 Betablocker and carbon anhydrase inhibitor (1)     11.13.3 Betablocker and brimonidine (0)     11.13.4 Betablocker and prostaglandin (3)     11.13.5 Other (0)   11.14 Investigational drugs; pharmacological experiments (8)   11.15 Other drugs in relation to glaucoma (9)   11.16 Vehicles, delivery systems, pharmacokinetics, formulation (12)   11.17 Cooperation with medical therapy e.g. persistency, compliance, adherence (4)   11.20 Other (1) 12 Surgical treatment (0)   12.1 General management, indication (5)   12.2 Laser iridotomy (4)   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 (13)     12.8.2 With tube implant or other drainage devices (55)     12.8.3 Non-perforating (6)     12.8.4 Using laser (0)     12.8.5 Other (3)     12.8.10 Woundhealing antifibrosis (11)     12.8.11 Complications, endophthalmitis (13)   12.9 Trabeculotomy, goniotomy (17)   12.10 Cyclodestruction (9)   12.11 Cyclodialysis (1)   12.12 Cataract extraction (0)     12.12.1 Intracapsular (0)     12.12.2 Extracapsular (0)     12.12.3 Phacoemulsification (10)   12.14 Combined cataract extraction and glaucoma surgery (0)     12.14.1 Intracapsular (0)     12.14.2 Extracapsular (0)     12.14.3 Phacoemulsification (10)   12.15 Capsulotomy (0)   12.16 Vitrectomy (1)   12.17 Anesthesia (1)   12.20 Other (5) 13 Therapeutic prognosis and outcome (0)   13.1 Prognostic factors (1)   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 (7) 15 Miscellaneous (34)

---

Abstract #78380 Published in IGR 20-1

Childhood Lensectomy Is Associated with Static and Dynamic Reduction in Schlemm Canal Size: A Biomechanical Hypothesis of Glaucoma after Lensectomy

Daniel MC; Daniel MC; Dubis AM; Theodorou M; Quartilho A; Adams G; Brookes J; Papadopoulos M; Khaw PT; Dahlmann-Noor AH
Ophthalmology 2019; 126: 233-241

---

PURPOSE: To compare Schlemm canal (SC) and trabecular meshwork (TM) in children with healthy eyes and those with and without glaucoma after lensectomy. DESIGN: Cross-sectional observational study. PARTICIPANTS: Fifty children 4 to 16 years of age with healthy eyes and 48 children who underwent lensectomy (124 healthy and 72 postlensectomy eyes). METHODS: Anterior segment (AS) OCT (Tomey SS-1000 CASIA; Tomey, Nagoya, Japan) of the nasal iridocorneal angle at 2 levels of accommodative effort (2.5 diopters [D] and 15 D). For each parameter and state of accommodation, a random effects model was fitted to estimate differences between healthy eyes and eyes with history of lensectomy. MAIN OUTCOME MEASURES: Dimensions of SC and TM and conventional AS OCT iridocorneal angle measurements. RESULTS: The horizontal diameter of SC and its cross-sectional area (CSA) are significantly smaller in eyes that have undergone lensectomy versus healthy eyes. Accommodative effort increases SC size in healthy eyes, but not in eyes that have undergone lensectomy. CONCLUSIONS: Lensectomy is associated with a reduction in SC size and a loss of physiologic SC dilatation during accommodative effort, which may reflect a reduction in outflow facility and may contribute to the development of glaucoma after lensectomy.

National Institute of Health Research Biomedical Research Centre for Ophthalmology, University College London Institute of Ophthalmology, and Moorfields Eye Hospital, London, United Kingdom; Eye Center, Medical Center, University of Freiburg, Freiburg, Germany.

Full article

---

Classification:

9.4.11.2 Glaucomas in aphakia and pseudophakia (Part of: 9 Clinical forms of glaucomas > 9.4 Glaucomas associated with other ocular and systemic disorders > 9.4.11 Glaucomas following intraocular surgery)
9.1.2 Juvenile glaucoma (Part of: 9 Clinical forms of glaucomas > 9.1 Developmental glaucomas)

---

• ← Previous
• Next →

---