You searched for "photopsia"

460 results found

Macula re-attachment following intravitreal ranibizumab in rhegmatogenous retinal detachment

Ranibizumab (Lucentis) is a vascular endothelial growth factor inhibitor (anti-VEGF) used for treatment of choroidal neovascular membrane [1]. We report a case where macula off inferior rhegmatogenous retinal detachment was misdiagnosed as wet age-related macular degeneration (AMD) and three intravitreal...

Pupil responses in diabetes

This study aimed to investigate pupillary involvement in patients with type 2 diabetes mellitus (DM) and to evaluate any relationship between severity of diabetic retinopathy (DR) and pupillary responses. Participants included 133 individuals in four groups: proliferative DR (n=21), non-proliferative...

ROPPVAL Syndrome as a differential diagnosis to optic neuritis

Optic neuritis (ON) is a common cause of visual loss in young patients. Patients with eye pain and ipsilateral visual loss are often referred into neuro-ophthalmology clinics with a possible diagnosis of ON. In 2018 Jefferis et al. reported a...

Intermittent exotropia

Four cases of intermittent exotropia are discussed. Case 1 was a nine-month-old with cycloplegic refraction of +1.0DS and a 30PD intermittent exotropia at near and distance. Discussions considered observation, part-time occlusion, refractive correction and later possibility of surgery. Case 2...

Photophobia: an unusual symptom of a pituitary macroadenoma

Introduction Photophobia, defined as ‘an abnormal intolerance to light’, is commonly associated with a range of both ocular and neurological pathologies such as dry eye, blepharospasm, corneal pathologies, cataracts, uveitis, retinal dystrophies, optic neuritis, migraine, meningitis, and traumatic brain injury...

Comparison of ganglion cell thinning in glaucoma vs. macular hole repair

This prospective study compared the changes in the photopic negative response of the focal macular electroretinogram (fmERG) caused by retinal ganglion cell complex (GCC) thinning at the macula between patients with open angle glaucoma (OAG) and 12 months after successful...

Questionable ERG use for Vigabatrin screening

The authors aimed to identify the usefulness of electroretinograms (ERGs) as screening for retinal toxicity in patients taking Vigabatrin in a single centre study. This was a retrospective review of full field ERGs and included 170 ERGs of 138 patients...

Contrast sensitivity in myopic eyes

A classification system has been proposed for myopic maculopathy: grade 0 (no myopic retinal lesions), grade 1 (tessellated fundus), grade 2 (diffuse chorioretinal atrophy (CRA)), grade 3 (patchy CRA), and grade 4 (macular atrophy). Tessellated fundus is defined as the...

Long-term esotropia and exotropia alignment

The authors review surgical outcomes for 317 children having surgery for esotropia (n=235) or exotropia (n=82) for comparative analysis using survival curves. Esotropia surgery was undertaken at a mean of 42 months; exotropia surgery at a mean of 60 months...

Photophobia associated with migraine: Investigating associations with productivity

The aim of this study was to investigate an association between severe photophobia linked to migraine and reduced work productivity. Cases were extracted from the American Registry for Migraine Research (ARMR) with the following criteria: diagnosed with migraine, data available...

Importing iron to the retina

In the retina, iron is particularly critical for the visual phototransduction cascade. In the retinal pigment epithelium (RPE), RPE65 activity leads to 11-cis-retinaldehyde, the photosensitive component of rhodopsin production and iron containing enzymes are necessary for disc replacement in photoreceptor...

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...