You searched for "Optics"

1899 results found

Macular measurements for amblyopic eyes

This study aimed to evaluate the macular parameters including foveal avascular zone (FAV) size and vessel density in amblyopia vs fellow eyes. The study included 23 unilateral amblyopia children (9.86 ±3.12 years; 52.2% female) and non-amblyopia control eyes (8.67 ±2.06...

Retinal nerve fibre layer thickness in migraine

The aim of this study is to evaluate retinal nerve fibre layer (RNFL) thickness changes in children with migraine compared to healthy controls and analyse RNFL changes dependent on type of migraine. This was an observation case control study of...

A review of neuro and retinal imaging findings in Alzheimer’s disease

The authors present a systematic review with the aim of assessing the relationship between retinal and cerebral changes in Alzheimer’s disease (AD), mild cognitive impairment and pre-clinical AD. A total of 23 articles met the inclusion criteria of the review,...

Changes in C:D ratio of premature infants with enlarged C:D ratios

This retrospective observational study examined the longitudinal alterations in cup to disc ratio (CDR) among premature infants exhibiting enlarged CDR and normal intraocular pressure (IOP) up to two years. Among the 283 infants, 13.4% manifested an enlarged CDR. In this...

Overview of issues with provision of paediatric ophthalmology care

Previous reports have summarised a consistent decline in paediatric ophthalmology over the past 20 years with significant differences in mean salary compensation for paediatric ophthalmologists vs. other ophthalmology subspecialties. Many subsidise income by other non-paediatric work or retire early. With...

Choroid and retinal changes post COVID-19

The authors aimed to evaluate choroid and inner neural layers in people previously recovered from Covid-19 compared to healthy controls using optical coherence tomography (OCT) over a six-month period. They recruited 96 people: 56 with Covid-19 at least three months...

Characteristics of cherry red spot on optical coherence tomography

In this study the authors report optical coherence tomography (OCT) characteristics of cherry red spot from three cases of Tay-Sachs and one case of Niemann Pick diseases to determine associated factors and potential visual implications. This was a retrospective case...

Updated staging of LCHADD retinopathy

The authors present their proposal for an updated staging system for Long-Chain 3-Hydroxyacyl-CoA Dehydrogenase (LCHAD) deficiency retinopathy. This is a rare mitochondrial disease due to deficiency of the long chain fatty acid oxidation pathway. Forty patients who were part of...

Stargardt disease in a Turkish cohort

The authors present a study of 27 Turkish patients who were seen in a single centre over a five-year period. All patients had macular optical coherence tomography (OCT), colour fundus photography and 30-2 Humphery visual fields performed, along with clinical...

A novel parameter for angle closure

This is a population cross-sectional study of 464 eyes that underwent swept-source optical coherence tomography (SSOCT) imaging in the dark. Eight out of 128 cross-sectional images were selected for analysis. Matlab was used to measure the iridolenticular contact area (ILCA),...

Infliximab in treatment of PVR

In this phase 2 randomly controlled trial, 66 patients with primary rhegmatogenous retinal detachment and grade C proliferative vitreoretinopathy (PVR) were randomised in a 1:1 ratio to undergo pars plana vitrectomy (PPV) and silicone oil (SO) injection with or without...

How the thinking machine is transforming the retinal landscape

Regulatory approval of the first two therapeutic substances for the management of geographic atrophy (GA) secondary to age-related macular degeneration has been a major breakthrough. The authors explored the issue surrounding the lack of agreed therapeutic standards and diagnostic tools...