You searched for "pigment"
Pigmented paravenous retinochoroidal atrophy
Presentation A 46-year-old Caucasian female was referred to the eye clinic by her local optician following a routine sight test. She was noted to have pigmentary retinal changes in both eyes but was asymptomatic with no visual complaints. At presentation...Does beauty truly lie in the eye of the beholder?
Simerdip Kaur takes a look at the latest ophthalmology-related news stories and asks which are based on facts and which are ‘fake news’. Headline: Does beauty truly lie in the eye of the beholder? Scleral whitening, iris colour-changing drops and...
IOP and reversibility of RPE detachment
The authors describe how three patients with retinal pigment epithelium (RPE) detachment showed a reduction or disappearance of an RPE detachment immediately following prone dark room test (PDRT). The authors performed spectralis OCT on 140 angle closure subjects before and...
Ranibizumab for the treatment of age-related macular degeneration
This multicentre randomised prospective open label study compared 0.5 versus 2mg of ranibizumab in patients with submacular retinal pigment epithelial (RPE) detachment due to age-related macular degeneration. Four treatment regimens were used for the two strengths either monthly for 12...A brief history of colour vision
Andrew Want takes a look at how colour vision has evolved in humans and animals and how it differs across species. Colour vision is something that we often take for granted, but it has become so intrinsic to the way...
Exudative age-related macular degeneration
The authors looked at macular lesions in eyes with newly diagnosed exudative age-related macular degeneration. The eyes of 23 patients were included and tested for visual acuity, contrast sensitivity, microperimetry, optical coherence tomography (OCT) and fluorescein and indocyanine green angiography....
The prevalence of macular cysts in patients with clinical cone-rod dystrophy determined by spectral domain optical coherence tomography
Cone-rod dystrophy is a progressive photoreceptor disorder which has multiple inheritance patterns. It is rare, with a prevalence of 1 in 40,000. Macular cysts are well recognised in other photoreceptor conditions such as retinitis pigments and choroideraemia, while they are...
Understanding the pachychoroid disease spectrum
This article provides a comprehensive review of the pachychoroid disease spectrum, a group of chorioretinal disorders characterised by abnormal choroidal thickening and various pathological changes in the choroid, retinal pigment epithelium, and retina. It also highlights the controversies and knowledge...
Preoperative RPE alterations in macular holes
This retrospective interventional case series from Japan assessed whether preoperative alterations of the retinal pigment epithelial (RPE) in idiopathic macular holes correlated with postoperative functional and morphological changes in the macula. Fifty-nine eyes had preoperative Spectralis OCT using the ‘detailed’...The interpretation and use of ultrasound biomicroscopy (part 1)
Ultrasound Biomicroscopy (UBM) has become increasingly important for the diagnosis of a variety of anterior segment pathologies. Most ophthalmologists are familiar with conventional B-scan ultrasonography techniques, which operate at lower sound frequencies (7.5 to 20MHz). UBM is an ultrasound technique...
ABCA1 mediates lipid efflux in the retina
Age-related macular degeneration (AMD) is the leading cause of blindness in the elderly population. There are two forms of AMD, dry and wet, the latter so named because of the presence of choroidal neovascularisation. Both forms lead to retinal pigment...
