You searched for "Optics"

1420 results found

Hype or helpful: ChatGPT

It would have been hard to miss all the attention chatbots have received over the last few months. Whilst ChatGPT is easily the most well-known example of the large language models that have become so widespread of late, artificial intelligence...

Optical Suppliers Association creates Sustainability Committee

The OSA will be holding their first Sustainability Committee meeting on Friday 23 July.

Microtropia as an amblyopia indicator

This study was undertaken to determine if microtropia with identity (straight eye anisometropia) is a reliable indicator of amblyopia following optical correction. This was a retrospective review of 532 children aged four to five years. After two months of glasses...

OCT in microtropia

The aim of this study was to assess whether OCT could be useful in detecting and documenting fixation in children with microtropia. The study used spectral domain OCT (Cirrus) in 15 patients (10 female, five male) and 10 control eyes....

Van Herick Plus

This a consecutive cross-sectional study of 95 phakic patients over the age of 40-years-old. By applying a short, vertical slit beam, the inferior angle at the scleral-limbal junction at 6 o’clock position was evaluated, photographed and assessed by a ratio...

Retinal microvasculature in amblyopic eyes

This study evaluated and compared measurements of macular vessel density and foveal avascular zone using optical coherence tomography (OCT) angiography in amblyopia eyes and age-matched controls to determine whether results are in agreement with previous studies. This was a cross...

Customised corneal crosslinking with supplemental oxygen

In this prospective interventional case series, the authors investigate using supplemental oxygen delivery during epithelium-on corneal crosslinking (CXL) with specially designed oxygen delivery goggles. Twenty-seven eyes of 24 patients underwent epi-on CXL with Riboflavin and Ultraviolet-A irradiation. At six months...

OCT angiography findings in amblyopic eyes

In this study, optical coherence tomography angiography (OCTA) was used to detect the existence of any vascular dysfunction in superficial and deep retinal layers that accompany visual impairment in amblyopic eyes compared to fellow and control eyes. The study included...

Migraine attack: does retinal and peripapillary blood flow change?

This prospective clinical study compared retinal and peripapillary blood flow parameters in migraine patients during an attack with healthy controls using optical coherence tomography angiography (OCTA). OCTAs were performed on 52 eyes from 26 migraine sufferers and 48 eyes from...

Association of pendular waveform and retinal disorders

The authors aimed to evaluate the relationship between retinal disorders and pendular low amplitude high frequency components (PLAHF) waveform by collecting nystagmus eye movement recordings, electroretinography (ERG) and gene tests. Retinal disorders were diagnosed by clinical phenotype and genotype characteristics....

Fixation target position for increased limbus measurement accuracy with AS-OCT

The authors intended to determine the optimal gaze fixation points for lateral rectus and medial rectus muscle insertions using anterior segment - optical coherence tomography (AS-OCT) compared with intraoperative measurements. They recorded 46 lateral and 36 medial rectus muscles from...

Occult central retinal artery occlusion

Central retinal artery occlusion (CRAO) is a sight-threatening condition resulting from occlusion of the central retinal artery and hypoperfusion of the inner retina. Early on, fundal examination may be normal. The authors present a retrospective case series of 11 patients...