You searched for "Optics"

1992 results found

Test combination which could detect prodromal Alzheimer disease

The authors prospectively recruited a convenience sample of individuals aged over 65 and either with a diagnosis of mild cognitive impairment (MCI) due to Alzheimer disease or normal cognition. Other types of dementia and severe neurological conditions were excluded. All...

Treatment outcomes for retinal detachment

This is a retrospective, nationwide, multicentre study with retinal detachment (RD) in the Japan-RD registry between 2016 to 2017. The primary outcome was the estimated mean difference of postoperative corrected visual acuity (CVA) in six months and a propensity score...

Depth and width of corneal wounds post corneal foreign body removal

This was a prospective study of 63 eyes of 63 patients undergoing corneal foreign body (FB) removal with a 27G needle at the slit-lamp; 96.8% of the patients were men with mean age 35.8 ±11.0 years. Regarding location of FBs,...

Silicone oil (SOT) versus gas (GT) tamponade for primary rhegmatogenous retinal detachment treated successfully with a propensity score analysis

This is a retrospective, nationwide, multicentre study with retinal detachment (RD) in the Japan-RD Registry between 2016 to 2017. The primary outcome was the estimated mean difference of postoperative cerebral vascular accident (CVA) in six months and a propensity score...

Treatment of amblyopia by Ghanaian optometrists

In Ghana, optometrists are the primary eyecare professional as a first contact for many patients with amblyopia. This study evaluated practice patterns in the management of amblyopia by optometrists in Ghana. The authors conducted a cross-sectional online survey aimed at...

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...