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TGFβ Signaling Dysregulation May Contribute to COL4A1-Related Glaucomatous Optic Nerve Damage
Purpose: Mutations in the genes encoding type IV collagen alpha 1 (COL4A1) and alpha 2 (COL4A2)...
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Racial Differences in Diagnostic Accuracy of Retinal Nerve Fiber Layer Thickness in Primary Open-Angle Glaucoma
Purpose: To evaluate the diagnostic accuracy of retinal nerve fiber layer thickness (RNFLT) by...
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Disease progression, despite intraocular pressure, should guide escalation of treatment in glaucoma
The Science behind the Tip NIHR Biomedical Research Centre at Moorfields Eye Hospital and UCL...
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The relationship between multiple deprivation and severity of glaucoma at diagnosis
BACKGROUND: Socioeconomic deprivation is associated with higher odds of chronic diseases, with...
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Plasma metabolite profile for primary open-angle glaucoma in three US cohorts and the UK Biobank
Author(s): Oana A Zeleznik ° (1,2), Jae H Kang ° (3,4), Jessica Lasky-Su (3,4), A Heather...
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Be aware of the potential influence of the vitreoretinal interface when interpreting OCT images of the retinal nerve fiber layer (RNFL) in glaucoma patients
Vitreous traction can cause artifacts that may obscure RNFL thinning, potentially leading to...
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Placebo effect and its determinants in ocular hypotensive therapy: meta-analysis and multiple meta-regression analysis
Author(s): Sooyeon Choe (1), Young Kook Kim (2), Woosuk Chung (3), Donghyun Ko (3), Marvin Lee...
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Angle Closure SIG
SIG Corner Editor: Hana Abouzeid Chair: John Thygesen Co-chair: Gus Gazzard The goal of this SIG...
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Comparison of Trabeculectomy Outcomes Performed by Residents in Training and Ophthalmologists
Author(s): Mário Lima-Fontes (1), Ana Faria-Pereira (1), Mariana Leuzinger-Dias (1), Marta Inês...
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Oral acetazolamide (Diamox) is known to lower intraocular pressure, but it can very rarely cause acute bilateral angle closure with severely elevated intraocular pressure
The mechanism is thought to be an idiosyncratic reaction to sulphonamides, similar to that which...
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Cataract Surgery in Patients with Functioning Glaucoma Filtration Surgery
The accelerated development of cataract is frequently seen in the years following glaucoma...
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In patients with narrow filtration angles or primary angle-closure glaucoma who have a patent laser iridotomy, it is safe to prescribe any systemic drugs which have an anti-cholinergic effect on the pupil
The science behind the tip Many commonly used systemic medications have been reported to cause acute congestive angle closure in individuals with...
February 28, 2015
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Systemic beta-blocker and nitrates result in a lowering of IOP which has implications for the management of ocular hypertension and glaucoma
The science behind the tip Systemic beta-blockers and nitrates are frequently used in the elderly. It has been known for many years that systemic...
January 31, 2015
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Corneal refractive surgery (LASIK) poses a risk to the glaucoma patient
The Science behind the Tip The transient, yet significant, IOP elevation caused by the suction ring may further damage an already compromised optic...
December 31, 2014
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If glaucoma progresses despite seemingly controlled IOP, then it may be worthwhile investigating and treating obstructive sleep apnoea syndrome (OSAS)
The Science behind the Tip The exact physiopathology of glaucoma is still poorly understood, but the role of vascular dysregulation has become...
November 30, 2014
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Per-operative use of anti-VEGF agents improves the chance of success of trabeculectomy
The Science behind the Tip Anti-VEGF agents have been widely used in a variety of ocular diseases for their activity in decreasing blood vessel...
October 31, 2014
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After the insertion of a drainage tube, the risk of a delayed supra-choroidal haemorrhage can be reduced by avoiding post-operative hypotony
The Science behind the Tip One of the most serious post-operative complications of tube-shunt surgery is a delayed supra-choroidal haemorrhage,...
September 30, 2014
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Temporal placement of a laser peripheral iridotomy is safe and is less likely to result in linear dysphotopsia than if the PI is placed superiorly
The Science behind the Tip To prevent pupil block, a laser peripheral iridotomy (PI) is the initial treatment for patients with primary...
July 31, 2014
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Patients with pseudoexfoliation syndrome often have loss of hearing and should be referred for audiometry
The Science behind the Tip Pseudoexfoliation syndrome is an important cause of glaucoma. It has been known for many years that pseudoexfoliation...
June 30, 2014
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Dietary supplementation and glaucoma
The Science behind the Tip Dietary supplements belong to the broad group of complementary and alternative medicine (CAM). A recent survey in Canada...
May 31, 2014
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Patients with pigmentary glaucoma respond well to laser trabeculoplasty, but steps must be taken to reduce the risk of the IOP spike that may occur immediately after the laser treatment
The Science behind the Tip Argon or selective laser trabeculoplasty (LT) is an established therapeutic option in the treatment of patients with...
April 30, 2014
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It is important that glaucoma patients at risk of end-of-life visual impairment should be identified and treated accordingly
The Science behind the Tip The ultimate outcome measure of glaucoma treatment is visual impairment and blindness at the time of death. Based on a...
March 31, 2014
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Perimetry should be undertaken soon after phacoemulsification and multifocal IOL implantation in patients with glaucoma, in order to establish new baseline parameters
The Science behind the Tip To determine change in visual function in patients with glaucoma, regular visual field testing is undertaken using...
February 28, 2014
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The early diagnosis of glaucoma and early detection of glaucoma progression should be enhanced by the use of spectral domain OCT measurement of the neuro retinal rim
The Science behind the Tip Recent studies using spectral domain ocular coherence tomography (SD OCT) measurement of the optic disc margin show that...
January 31, 2014
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Consider using preservative-free topical medication in patients with ocular surface disease
The Science behind the Tip Many glaucoma drops contain a preservative agent to minimise the risk of microbial contamination. Benzalconium chloride,...
November 30, 2013
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Cataract surgery after trabeculectomy increases the risk of bleb failure and this risk is increased if the time between trabeculectomy and cataract surgery is short
The Science behind the Tip Trabeculectomy surgery is a recognised risk factor for the subsequent development of cataract. Phacoemulsification with...
November 30, 2013
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Generic drops can differ from brand drops and it may be necessary to monitor patients more closely after switching
The Science behind the Tip In order to be approved for general use, a generic drug has to show the criterion of essential similarity when compared...
October 31, 2013
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The measurement of retinal nerve fibre thickness is helpful in determining which patients with ocular hypertension will develop glaucoma
The Science behind the Tip In patients with ocular hypertension, moderate to severe retinal nerve fibre layer (RNFL) atrophy at baseline has been...
September 30, 2013
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Post-traumatic angle-recession glaucoma is difficult to manage and surgical intervention is often required
The Science behind the Tip Anterior chamber angle recession is the commonest physical sign of previous blunt trauma to the eye. Raised intraocular...
June 30, 2013
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The use of Ginkgo biloba may increase the risk of bleeding
The Science behind the Tip Extracts of the leaves of the Asiatic tree Ginkgo biloba (GBE) provide protection against mitochondrial oxidative damage...
May 31, 2013
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If surgery is required to control IOP in a patient with nanophthalmos, phacoemulsification with IOL implantation is a good option, but the complication rate is high
The Science behind the Tip Nanophthalmos, small eye-big trouble, is a form of microophthalmos which is not accompanied by other congenital...
April 30, 2013
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Indefinite use of cycloplegics can be the last resort when surgery for malignant glaucoma has failed
The Science behind the Tip Malignant glaucoma or aqueous misdirection is a rare but feared complication of anterior segment surgery. It occurs in...
March 31, 2013
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Young men of European ancestry with angle-closure require thorough investigation
The Science behind the Tip Primary angle closure glaucoma is rare in younger white adults, with an estimated age specific prevalence of 0.02% for...
February 28, 2013
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Intravitreal steroids should be used with caution in patients with glaucoma
The Science behind the Tip In recent years it has become common practice to inject steroids into the vitreous to reduce macular oedema or ocular...
December 31, 2012
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Long-term application of benzalkonium chloride increases the risk of filtration surgery failure
The Science behind the Tip Glaucoma medication solutions usually contain the preservative benzalkonium chloride (BAK) in concentrations varying...
November 30, 2012
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In patients with pseudoexfoliation glaucoma, phacoemulsification with IOL implantation can result in a late, sustained reduction in intraocular pressure
The Science behind the Tip Raised intraocular pressure (IOP) in an eye with pseudoexfoliation syndrome results from pigment and exfoliation...
October 31, 2012