You searched for "Optics"

1866 results found

A novel computerised portable pupillometer detects and quantifies relative afferent pupillary defect

We have all had referrals from A&E telling us that a patient can’t see out of one eye. Sleepily we may ask “Is there an relative afferent pupillary defect (RAPD)?” to evaluate the seriousness of the presentation. The response is...

Sex differences in the relationship between obesity and choroidal nevus in US adults

The National Health and Nutrition Examination Survey (NHANES); a population-based survey conducted annually in the US by the Centers for Disease Control and Prevention, was used to identify populations at higher risk for choroidal naevus. Over a period of four...

Avoiding pre-placed recti sutures in enucleation

This is a retrospective review of 40 patients who underwent enucleation using a non-conventional technique in which the recti muscles were detached from the sclera without pre-placing any sutures to secure the cut muscle ends. The surgery was only performed...

Imaging and histological relationship of orbital Schwannomas

This is a retrospective review of 15 patients with orbital Schwannomas comparing the radiological characteristics, in particular the signal intensity on MRI, with the histological sub-types of the tumours. Five patients had MRI imaging alone, three had CT alone and...

RAPD in glaucoma screening

A study was conducted to investigate the relative afferent pupillary defect (RAPD) by swinging flashlight as a potentially useful screening test for glaucomatous optic neuropathy. The authors recruited 107 subjects with or without glaucoma from a clinic population. A medical...

Analysis of risk factors for intraocular pressure rise following insertion of fluocinolone acetonide injection in uveitic patients

For this study, the authors analysed the pooled data from three phase2b / 3 multi-centre randomised controlled trials carried out over three years. Included patients had undergone at least one of the following treatments: 1) systemic therapy (corticosteroid / immunosuppressant...

Mitomycin C versus 5-FU as an adjunctive treatment for trabeculectomy

Antifibrotic agents are used during trabeculectomy (TRAB) to improve long-term surgical success by reducing fibrosis of subconjunctival and episcleral tissue. The purpose of this meta-analysis was to directly compare the efficacy and safety of the two most frequently used antifibrotic...

Features of Behcet’s disease

This is a retrospective single centre study from Paris, France, between the periods of 1986 to 2015. Twenty-nine out of 217 (13.3%) neuro-Behcet’s disease (NBD) patients presented with neuro-ophthalmic manifestations (55% of men and mean age of 28 years). Sixteen...

VKH outcomes with pulse IV steroids

This is a retrospective review of clinical case notes records of 111 Vogt-Koyanagi-Harada (VKH) patients between 1999 and 2015 from a single centre in Tokyo, Japan. The mean age at presentation was 41 years and the median follow-up period was...

Silicone oil in rhegmatogenous retinal detachment

Silicone oil (SO), used in complicated retinal detachments, is associated with complications such as cataract, increased intraocular pressure (IOP), keratopathy, cystoid macular oedema (CMO), epiretinal membrane (ERM) and loss of vision. Emulsification of oil can also lead to migration of...

Neurofibromatosis type 1 features

The aim in this study was to identify the incidence and de nova mutation rate of Neurofibramatosis type 1 (NF1) and describe the ocular and non-ocular findings in a population-based cohort of patients diagnosed over a 30-year period. The study...

Retinoblastoma risk factors for recurrence

This study evaluates risk factors for local tumour recurrence of main solid tumour, subretinal seed, vitreous seed and new tumour formation in eyes with retinoblastoma (RB) management with primary chemotherapy over 20 years of follow-up. The study included 960 eyes...