You searched for "Optics"

1420 results found

Use of Strabocheck to measure angle of deviation

Strabocheck (SK) is a free to access software and is a measurement of deviation angle based on the corneal light reflex in monocular and binocular photographs uploaded to the website. The purpose of this study was to evaluate SK in...

Topography based keratoconus progression after corneal collagen cross-linking

Case 1 describes a 35-year-old man with progressive keratoconus (PK). His best corrected visual acuity (BCVA) was right 20/80 (-5.25/-7.75 x 85) and left 20/20 (+4.75/-5.00 x 90). His Ks were right 36.32/48.02 D and 41.15/46.41 D. Right central cornea...

Moxifloxacin 0.5% for bacterial keratitis

The authors report on the results of a randomised controlled trial comparing commercially available non-preserved moxifloxacin 0.5% vs. a combination of fortified cefazolin 5% and tobramycin 1.3% in the treatment of moderate bacterial keratitis without perforation. Corneal scrapings were collected...

Ten-year experience with intracameral chemotherapy for aqueous seeding in retinoblastoma: long-term efficacy, safety and toxicity

This is a retrospective review of all consecutive patients with primary (n=4) or secondary non-iatrogenic (n=16) aqueous seeding (AS) treated by intracameral chemotherapy (ICC) in Lausanne between 2011 and 2020 with a minimum follow-up of one year. Aqueous seeding control...

Glaucoma-NET: a novel way of improving glaucoma management in sub-Saharan Africa

Background Glaucoma is the second most common cause of blindness worldwide [1]. People with untreated glaucoma suffer from irreversible, progressive loss of sight. The disease is characterised by progressive loss of visual field, with pathological cupping of the optic disc...

The management of chronic central serous chorioretinopathy

Central serous chorioretinopathy (CSCR) is a common retinal disease characterised by one or more serous neurosensory detachments. Patients present with acute onset blurring of vision, metamorphopsia and / or central scotomas. The condition is six times more common in men...

EyeLogbook

This issue we’re covering the recently updated EyeLogbook (www.eyelogbook.co.uk), the Royal College of Ophthalmologist’s (RCO) online surgical logbook. Back in March 2016 a fully re-designed version of the site was released. Not only does the new version bring a beautifully...

What’s trending? Dec/Jan 2018

#scleratattoo Yes, you read that correctly. Scleral tattoos are a relatively new form of extreme body modification. Oddly enough, ‘sclera tattoo’ comes up with more hits on Twitter and YouTube than ‘scleral tattoo’. The procedure involves injecting a mixture of...

Cavernous sinus syndrome

Anatomically the cavernous sinus is a plexus of multiple veins that are connected and within this plexus there are several important vascular and neurological structures. These include cranial nerves III, IV, V1 (and sometimes V2), VI as well as the...

Unexpected diagnoses – stroke in children and homonymous hemianopia

We present the case of a 12-year-old child presenting with a few days history of left-sided visual loss. Upon further investigation with magnetic resonance imaging (MRI) she was unexpectedly diagnosed with a right-sided chronic posterior cerebral arterial territory infarct, causing...

What you learn after performing 10,000 cataracts

What do you do when the anterior chamber shallows, or the zonules give way? How do you handle the stubborn epinuclear plate? Raymond Radford shares the benefit of his experience when dealing with tricky cataract surgery. Firstly, you realise you...

Under pressure: a tool to aid the 
non-ophthalmic practitioner in the timely management of acute angle closure

Acute angle closure is a true ophthalmic emergency that mandates timely diagnosis and treatment. The priority in initial management is to lower the intraocular pressure in an expeditious matter using medical treatments. The risk of irreversible glaucomatous optic neuropathy is...