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Not every ring scotoma is due to glaucoma
In advanced stages of glaucoma, patients may present with an annular scotoma, also known as ring...
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Relationship between Blood Pressure and Rates of Glaucomatous Visual Field Progression
Purpose: To examine the relationship between systemic arterial blood pressure (BP) and the rate...
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Comparison of Outcomes of Deep Sclerectomy, Canaloplasty, and Viscocanaloplasty: A Multi-Centred Study
Prcis: Deep sclerectomy (DS) and canaloplasty provide better intraocular pressure (IOP) control...
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Macular Oxygen Saturation in Glaucoma Using Retinal Oximetry of Visible Light Optical Coherence Tomography: A Pilot Study
Purpose: A cross-sectional pilot study to compare macular oxygen saturation (sO2) and associated...
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Childhood Glaucoma
SIG Corner Editor: Hana Abouzeid Chair: Esther Hoffmann Co-chair: Zeynep Aktas Childhood glaucoma...
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Avoid premature removal of the intraluminal suture in glaucoma drainage devices to minimize the risk of hypotony
While prolene suture removal is an effective method for reducing IOP at the slit-lamp, removing...
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Biomechanics-Function in Glaucoma: Improved Visual Field Predictions from IOP-Induced Neural Strains
Purpose: (1) To assess whether neural tissue structure and biomechanics could predict functional...
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Validation of a Visual Field Prediction Tool for Glaucoma: A Multicenter Study Involving Patients With Glaucoma in the United Kingdom
Purpose: A previously developed machine-learning approach with Kalman filtering technology...
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Fatal beauty: which cosmetics are your glaucoma patients using?
Colorism refers to the difference in social treatment between light-skinned and dark-skinned...
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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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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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In a patient with pigment dispersion syndrome, the most significant ocular risk factor for conversion to glaucoma is an IOP above 21mmHg on presentation
The Science behind the Tip Pigment dispersion syndrome tends to occur in young myopic white men. There are genetic factors that underly the risk...
April 30, 2018
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Validated prediction models are helpful to determine the risk of an individual with ocular hypertension developing chronic glaucoma
The Science behind the Tip Raised intraocular pressure (IOP) is an important risk factor for the development of glaucoma and can be modified with...
March 31, 2018
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Measuring the intraocular pressure (IOP) not only in sitting, but also in supine position, may help to identify the 24-hour IOP characteristics of your glaucoma patient
The Science behind the Tip It is well known that each patient has an individual circadian IOP pattern. Studies have shown that up to two thirds of...
February 28, 2018
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Treatment of ischaemic central retinal vein occlusion with prophylactic anti-VEGF injections reduces the risk of neovascular glaucoma, but careful long-term monitoring for ocular new vessels remains essential
The Science behind the Tip Approximately 20% of central retinal vein occlusions (CRVO) are ischaemic and of those, 45% develop neovascular...
January 31, 2018
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OCT measurement of the retinal nerve fibre layer is useful for detecting progression in early glaucoma
The Science behind the Tip Both visual field testing and optical coherence tomography (OCT) measurements can be used to detect glaucomatous...
December 31, 2017
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Bleb encapsulation after trabeculectomy can be successfully treated by using aqueous suppressant treatment for a short period
The Science behind the Tip Bleb encapsulation may occur 2 to 6 weeks after trabeculectomy, when an elevated, tense, dome-shaped bleb develops with...
November 30, 2017
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A patient who presents with raised intraocular pressure or glaucoma and distended episcleral veins in one eye needs to be investigated for a spontaneous carotid – cavernous fistula
The Science behind the Tip A carotid – cavernous sinus fistula is an abnormal vascular communication between the carotid artery system and the...
October 31, 2017
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Glaucoma associated with congenital aniridia is difficult to treat, but tube-shunt drainage devices offer the best results
The Science behind the Tip Congenital aniridia is a rare bilateral developmental disorder which is inherited in an autosomal dominant fashion in...
September 30, 2017
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In a young patient with acute congestive angle closure or recurrent angle closure in the presence of a patent laser iridotomy, the underlying cause is usually plateau iris configuration
The Science behind the Tip Plateau iris configuration is characterised by a closed anterior chamber angle in association with a flat iris plane and...
July 31, 2017
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The chronic use of prostaglandin analogues may lead to a modest underestimation of IOP when measured by Goldmann applanation tonometry
The Science behind the Tip Corneal hysteresis is a biomechanical property of the cornea relating to its elasticity. The measurement of corneal...
June 30, 2017
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In a patient with glaucoma who has unexplained hair loss, stop topical beta-blocker treatment
The Science behind the Tip Beta adrenergic receptor blocking eye drops are often used to reduce the intraocular pressure. Because of absorption...
May 31, 2017
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Patients with normal tension glaucoma who develop a branch retinal vein occlusion should be monitored with greater care
The Science behind the Tip If a branch retinal vein occlusion (BRVO) occurs in a patient with normal tension glaucoma, it tends to occur in the eye...
April 30, 2017
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Visual function may improve after trabeculectomy in some adults with moderately advanced glaucoma
The Science behind the Tip We were taught that visual field loss from glaucoma is irreversible and that our interventions could at best, preserve...
March 31, 2017
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The regular (and sometimes clandestine) application of periocular corticosteroid cream can induce glaucoma in susceptible individuals
The Science behind the Tip Steroid-induced ocular hypertension and glaucoma is typically associated with topical steroid therapy and presents with...
February 28, 2017
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In patients with primary angle-closure glaucoma and primary angle closure with high intraocular pressure (IOP), there is a good evidence to support the use of clear lens extraction with intraocular lens implantation as initial treatment
The Science behind the Tip The standard treatment for primary angle-closure glaucoma (PACG) is laser peripheral iridotomy (PI) to open the drainage...
January 31, 2017
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Patients with neovascular glaucoma should be referred to a general physician as management of their underlying systemic disease should increase their life expectancy
The Science behind the Tip Most patients with neovascular glaucoma have retinal ischaemia secondary to either proliferative diabetic retinopathy,...
December 31, 2016
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The risk of secondary haemorrhage after hyphaema can be reduced by using topical steroids and oral tranexamic acid
The Science behind the Tip A hyphaema is a common and usually innocuous consequence of blunt injury or ocular surgery. However, the secondary...
November 30, 2016
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Despite the increased central corneal thickness (CCT) that may follow lamellar corneal surgery, reliable IOP measurements can be obtained with Goldmann applanation tonometry or Pascal dynamic tomography
The Science behind the Tip Lamellar corneal surgery (DSAEK, DMEK) is replacing penetrating keratoplasty, because visual recovery is better and...
October 31, 2016
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In patients with pigment dispersion syndrome, YAG laser peripheral iridotomy can reduce the risk of raised intraocular pressure (IOP) in some patients, but does not prevent glaucoma
The Science behind the Tip Pigment dispersion syndrome arises from posterior bowing of the iris secondary to reverse pupil block. This causes...
September 30, 2016
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An optic disc haemorrhage indicates ongoing structural change and is an important sign of progressive glaucoma
The Science behind the Tip Prospective studies have shown that splinter-shaped haemorrhages at the optic disc margin are an important risk factor...
July 31, 2016
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Gradual intraocular pressure (IOP) elevation with a need for additional treatment is common in pseudophakic glaucoma patients following Nd; YAG laser posterior capsulotomy
The Science behind the Tip Nd: YAG laser capsulotomy is known to increase the IOP in some normal patients in the short term, with the maximum IOP...
June 30, 2016
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Early detection of hypotony maculopathy is essential, as permanent chorioretinal changes and poor visual outcomes will occur without rapid surgical intervention
The science behind the tip Hypotony maculopathy is an uncommon but serious late complication of glaucoma filtration surgery, particularly when an...
May 31, 2016
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In patients with glaucoma who require treatment for age-related macular degeneration or diabetic macular oedema, aflibercept may be a better choice of therapy than ranibizumab, as it is less likely to result in a delayed and sustained rise in IOP
The science behind the tip Anti - VEGF injection therapy for age-related macular degeneration or diabetic macular oedema may result in a delayed...
April 30, 2016
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Beware of the patient who presents with acute angle closure and transient myopia, as this may occur as an idiosyncratic side effect of oral sulfonamides
The science behind the tip The normal mechanism of angle closure is pupillary block, which is treated with a laser peripheral iridotomy (PI)....
March 31, 2016
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If a choroidal effusion develops after surgery in a patient with nanophthalmos then a partial thickness lamellar sclerectomy is an effective therapeutic option
The science behind the tip Raised IOP and secondary glaucoma are common late consequences of nanophthalmos (axial length less than 20mm)....
January 31, 2016