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820 results found

Effect of refractive corneal surgery on IOP and glaucoma progression

Accuracy of intraocular pressure (IOP) measurement depends on the biomechanical properties of the cornea, including its thickness central corneal thickness (CCT) and keratometry (K). Fifty-six eyes of 56 patients with primary open angle glaucoma (POAG) who had a history of...

Principles of management

Whatever section of pathology is to blame and wherever it strikes, the aim of treatment is always the same. Find the cause if you can. Establish the effects of the cause. Halt the pathological process if you can. Reverse its...

Ophthalmic viscoelastic devices: Useful insights for a novice cataract surgeon

Ophthalmic viscoelastic devices (OVDs) are essential in many different stages of cataract surgery. This article discusses the categories of OVDs and their respective properties, and highlights their uses in different scenarios faced in cataract surgery. Ophthalmic viscoelastic devices are gel-like...

Mono vs. multi-therapy in IOP control

This randomised control trial studied newly diagnosed glaucoma patients given mono‐ or multi‐therapy regarding differences in initial intraocular pressure (IOP) reduction, target IOP levels reached and influence of untreated baseline IOP on IOP reduction. Patients newly diagnosed with manifest primary...

Binocular summation responses in strabismic amblyopia

A preliminary study was conducted to determine whether binocular summation (BS) in strabismic amblyopia is more decreased than in strabismus alone and whether strabismus surgery improves BS. The study included 15 strabismic amblyopes, 30 normal controls and 30 strabismic controls....

CAT-QoL questionnaire

The purpose of this study was to use Rasch analysis to inform the refinement of the CAT-QoL amblyopia treatment questionnaire. Of the 342 subjects that were recruited across nine centres, 315 had sufficient clinical data for analysis with RUMM software....

Investigating the effect of signal strength on mean retinal nerve fibre layer

The aim of this study was to determine the effect of signal strength on mean retinal nerve fibre layer (RNFL) using spectralis optical coherence tomography (S-OCT). Thirty normal subjects were imaged with S-OCT using variably dense Bangerter foils to alter...

Perception of depth in 3-D media

The aim of this study was to evaluate the relationship between clinical measures of stereoacuity and the perception of depth in 3-D entertainment media. Fifty-seven subjects aged 16-62 years with stereopsis and no strabismus were assessed. Monocular blur was used...

IOP and reversibility of RPE detachment

The authors describe how three patients with retinal pigment epithelium (RPE) detachment showed a reduction or disappearance of an RPE detachment immediately following prone dark room test (PDRT). The authors performed spectralis OCT on 140 angle closure subjects before and...

Under pressure: the constant drive to improve IOP monitoring

The authors offer a comprehensive overview of interplay between glaucoma and intraocular pressure (IOP), IOP measurement principles and historical measurement techniques and progress in IOP measurement devices. The authors explore the issues surrounding current thinking in IOP measurement and its...

DIY IOP – does it work?

Measuring intraocular pressure (IOP) plays a major role in glaucoma care as IOP is a parameter, along with visual field progression and optic disc cupping used to assess treatment effect. While Goldmann tonometry (GAT) is the gold standard, it only...

Outcomes of cataract surgery in eyes with weak zonules

Pseudoexfoliation (PEX) and zonular weakness have long been known to increase the risk of complication of cataract surgery. This retrospective study looks at the results of phacoemulsion and intraocular implantation in 295 eyes with pseudoexfoliation and zonular weakness, with a...