You searched for "Optics"

1992 results found

Long-standing flattening effects on the globe following spaceflight

Posterior globe flattening has been well-documented in astronauts both during and after long-duration spaceflight (LDSF). This globe flattening is thought to be due to the disc centred anterior forces created by elevated volume and / or pressure within the optic...

Adjuvant radiotherapy in orbital malignancy

This is a retrospective review of high dose volumetric modulated arc radiotherapy (VMAT) for adjuvant treatment of patients with orbital malignancy who had already undergone local excision or exenteration. VMAT differs from conventional external beam radiotherapy in that it is...

FA findings in treatment-naive premature infants

This retrospective study examined fluorescein angiography (FA) images of 162 eyes of 81 treatment-naive infants with retinal vascular immaturity and persistent avascular retina (PAR) despite exceeding postmenstrual age of 60 weeks. Disc diameter (DD), optic disc-to-fovea distance (FD), the length...

Natural history of idiopathic intracranial hypertension depending on incidental or symptomatic presentation

The authors present a large retrospective review cohort of consecutive patients diagnosed or presumed idiopathic intracranial hypertension (IIH) over a three-year period at a single tertiary centre. Patients on medication with a known aetiology for IIH were excluded. The cohort...

Pupil abnormalities after orbital surgery

This is a retrospective review of 287 patients who underwent removal of an orbital cavernous haemangioma (cavernous venous malformation), to ascertain the incidence of surgically induced pupillary abnormalities. Forty-four patients had lesions removed from the anterior or extraconal orbit, none...

RetCam use in differential diagnosis for retinoblastoma

The authors aimed to evaluate RetCam fundus photography and fluorescein angiography (FA) findings in pseudo retinoblastoma. This was a retrospective review of 36 eyes of 28 patients (of which six were female) with 22 bilateral cases. Mean age at presentation...

Eye disorders occurring in congenital CMV

The aim of this study was to examine the relationship between congenital cytomegalovirus (CMV) infection and ophthalmological disorders that occur in children and record the frequency and type of eye disorders that occur from the infection. Of 449 potential studies,...

Autologous scleral button for anterior defect in evisceration surgery

This is a small case series of five patients who have had evisceration surgery using a new technique. The anterior defect created when removing the corneal button has been closed by taking an autologous posterior scleral graft inferomedial to the...

Predictors for developing strabismus after paediatric cataract surgery

This study investigates the predictors for strabismus development in patients with paediatric cataract and their final visual acuity. The aim was to improve the treatment of both deprivation and strabismic amblyopia after surgery. The study included 46 children; 21 male,...

Comparison between findings in ‘active’ or ‘healed’ giant cell arteritis

Giant cell arteritis (GCA) is the most common systemic vasculitis in older people and can cause devastating sight loss if untreated. Temporal artery biopsy is often relied upon for diagnosis by ophthalmologists, with a positive biopsy result indicating whether the...

Current literature evidence for fulminant idiopathic intracranial hypertension

Fulminant idiopathic intracranial hypertension (IIH) is a rapid vision-degrading presentation of IIH with limited published studies. This narrative review aims to collate current knowledge around fulminant IIH presentation and visual outcomes. Search terms included IIH, benign intracranial hypertension, or pseudo-tumour...

In conversation with Dr Harold Quigley (2018)

Dr Quigley visited the Eye News stand at the 2018 Royal College of Ophthalmologists Annual Congress to tell us about his Optic UK lecture on the topic of '21st century glaucoma treatment', which covered how we should define, treat and...