You searched for "photopsia"

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Visual snow syndrome: a review

Visual snow syndrome (VSS) is a neurological condition characterised by visual phenomena described as dots moving across the visual field. Other visual symptoms can take the form of palinopsia, entopic phenomena, photophobia and nyctalopia. Tinnitus and migraine can be commonly...

Narrative literature review for intermittent exotropia

This is a narrative literature review on prevalence, terminology, risk factors, natural history and clinical characteristics for intermittent exotropia. A Medline search was conducted with no date restrictions up to September 2020 and collating English language studies. Prevalence was reported...

Useful, interesting, or maybe both

This column is often, but not always, about ophthalmic tech. This is one of those ‘not always’ editions. Time to share some interesting or useful things from the internet which can help in a number of ways, from preparing presentations...

Randomised trial of multifocal intraocular lens versus monovision

The authors report on a randomised, multicentre clinical trial comparing the outcomes of Tecnis ZM900 diffractive multifocal intraocular lenses (IOL) versus monovision with Akreos AO monofocal IOL (dominant eye targeted for emmetropia and non-dominant eye targeted for -1 to -1.50...

Clinical outcomes of a supplementary sulcus IOL

In this retrospective study, the authors examined 31 eyes of 20 patients who had received a supplementary trifocal sulcus IOL in addition to a ‘bag-in-the-lens’ IOL. Implantation of a ‘bag-in-the-lens’ IOL requires the creation of anterior and posterior capsulotomies, followed...

Visual performance of new multifocal IOL

Multifocal IOLs (MIOLs) keep evolving to try and get the best outcome in terms of vision and reduction of side-effects. This prospective interventional study was carried out on 34 eyes of 17 patients (11 women (65%) and six men (35%))...

Intraocular lens technology to deliver enhanced optical performance after cataract refractive surgery

Modern cataract surgery aims to provide patients with the best possible visual outcome with the least dependence on spectacles and minimal or no complications and to treat both cataract and refractive errors with a single procedure. Phacoemulsification is the standard...

The results of the last survey Oct24

*Please be aware that this data does not form part of a peer reviewed research study. The information therein should not be relied upon for clinical purposes but instead used as a guide for clinical practice and reflection. The sample...

One muscle surgery

This is a review of current literature on unilateral strabismus surgery for small to moderate angle esotropia, exotropia, residual and consecutive strabismus and convergence or divergence insufficiency. The review considers recession surgery for eso / exotropia of angles up to...

Postop esotropia re-drift

The authors aimed to investigate the rate and onset of development of re-drift after infantile esotropia surgery and identify factors associated with this. This was a retrospective study of 112 patients with a mean postoperative follow-up of 9.5 years. Consecutive...

Assessing and treating achromatopsia

This literature review considers clinical characteristics (pendular nystagmus, poor visual acuity, lack of colour vision and marked photophobia), genetics (autosomal recessive disease, with CNGA3, CNGB3, GNAT2, PDE6C, PDE6H and ATF6 gene mutations), diagnostic options (OCT and fundus auto fluorescence), and...

Canadian centre experience with ocular cystinosis cases

Ocular cystinosis (OC) is an uncommon recessive genetic disease occurring in about one case per 100–200,000 live births. Patients have accumulation of cystine crystals within tissues. Ocular symptoms include photophobia, blepharospasm, foreign body sensation, retinopathy and visual impairment. Crystals have...