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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...A comparison of light sources in retinal imaging
Before starting to talk about the light sources present in retinal imaging, it is necessary to start from the base: the light. Light is an electromagnetic wave whose smallest part is the photon (or quantum of light). A high frequency...Zeiss Forum
The tech column this issue reports on the features and experience of using the Zeiss Forum software. I have overseen the installation, troubleshooting, training and use of the software over the last two years. As both a consultant specialising in...
Retinal structural features of CMV retinitis
Confocal adaptive optics (AO) technology has enabled cellular level retinal imaging, including imaging of photoreceptors and blood flow. Adaptive optics scanning laser ophthalmoscopy (AOSLO) is a technology that provides high resolution and high contrast retinal images by correcting ocular aberrations....
Swept-source OCT for measuring peripheral anterior synechiae
The authors report on a cross-sectional study looking at swept-source optical coherence tomography (SS-OCT) for measuring the area and degree of peripheral anterior synechiae (PAS) in patients with angle closure glaucoma. The SS-OCT is commercially available, has a laser wavelength...
OCT biomarkers in asymmetric anti-VEGF response in bilateral diabetic macular oedema
This study aimed to identify optical coherence tomography (OCT) biomarkers for predicting response to anti-VEGF treatment in diabetic macular oedema (DMO). Bilateral DMO patients with asymmetric response to a loading dose of anti-VEGF (ranibizumab / aflibercept) treatment were retrospectively studied....
Use of international interocular difference thresholds for optic neuritis diagnosis in clinical practice
Multiple sclerosis (MS) is the most common non-traumatic cause of disability in young people, and visual symptoms can be the initial manifestation in up to 20% of cases. Retinal examination can be helpful in making the correct diagnosis. The latest...RCOphth (The Royal College of Ophthalmologists) Management of Diabetic macular oedema: state-of-the-art
Talks will include: 1) OCT biomarkers in DMO - what adds value in clinical-decision making? - Christiana Dinah, Consultant Ophthalmologist and medical retina specialist, London 2) Debate: When should you switch treatment in DMO? versus late - Deepali Varma, Consultant...Progress in retinal disease management: Highlights of the Retina Day, RCOphth 2025 Annual Congress
The Retina Day meeting at the Royal College of Ophthalmologists (RCOphth) 2025 Annual Congress in Liverpool was held on 22 May 2025. This report highlights 10 selected topics of interest to subspecialists and general ophthalmologists. Decarbonising anti-VEGF clinics (or making...
Extraocular muscle OCT
The goal was to evaluate the use of the Heidelberg anterior segment optical coherence tomography (AS-OCT) to image extraocular rectus muscle insertions and to expand the use of the AS-OCT to also image vertical rectus muscles. The authors evaluated inter...
Macular thickness after strabismus surgery
The aim of this study was to determine whether strabismus surgery is associated with changes in macular thickness as detected by OCT. The study included 60 eyes of 30 patients with mean age of 28.9±14.2 years undergoing unilateral surgery. Mean...
