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Hyper reflective foci (HRF) on OCT in diabetic retinopathy

This study investigated the presence of hyper reflective foci (HRF) in asymptomatic patients affected by type 1 or type 2 diabetes, separately, without clinically significant diabetic macular oedema and visual impairment. In total 71 eyes with non-proliferative diabetic retinopathy were...

Scheimpflug vs. OCT in measuring corneal thickness

The authors report on the reproducibility and repeatability of corneal thickness measurements using three different Scheimpflug imaging cameras (Pentacam, Sirius and Galilei) and one Fourier-domain optical coherence tomography (OCT) system (RTvue-100). The rationale for this study is that corneal thickness...

Measurement considerations in OCT results with suspected glaucoma

The purpose of this study was to determine retinal nerve fibre (RNFL) thickness parameters and assess the relationship between the cup-to-disc (CD) ratio and RNFL measurements of paediatric patients who had optic nerve appearance suspicious for glaucoma based on enlarged...

Glaucoma diagnosis with spectral-domain OCT of GCL and IPL

This is a prospective, cross-sectional, observational study by the New York Eye and Ear Infirmary, which recruited normal subjects and glaucoma patients with a range of visual field loss representing various degrees of glaucomatous optic neuropathy. A total of 69...

Disc margin delineation using spectral domain OCT

Observing progressive anatomical changes of the optic nerve head is essential in the detection of progression in glaucoma. Imaging devices continue to evolve and are useful in detecting change in established glaucoma, although probably less useful in an initial diagnosis....

Oct/Nov 2016 Quiz

History A 67-year-old female patient had chronic left canaliculitis becoming painful and more recently complicated by left lower blepharitis. Examination revealed a small fleshy lump on the medial aspect of the left lower eyelid. There was also swelling of the...

DRI OCT Triton

SS OCT & OCTA 1050nm wavelength, 100,000 A Scans/sec Widefield OCT (21mm B-scans, 21mm x21mm OCTA) Smart Denoise for enhanced scan quality Advanced anterior imaging: 9mm Radial Scan (epithelial/ stromal mapping, corneal thickness), 16mm Line Scan (glaucoma metrics) Multimodal Imaging:...

Solix FullRange OCT

SOLIX is a multi-modal OCT. It features high-speed scanning of 120,000 A-scans per second, for a FullRange field of view that is wide and deep, yet does not sacrifice image clarity and resolution. Anterior & posterior OCT OCT & OCTA...

Oct/Nov 2017 Quiz

History A 73-year-old man presented with a rapidly growing left lower eyelid lump with recent bleeding. On examination there was a raised, ulcerated, firm mass occupying two thirds of his lower eyelid. The lesion bled easily and appeared connected to...

Oct/Nov 2015 Quiz

History A 16-year-old female presents with bilateral ocular irritation. The patient has a history of seasonal rhinitis and eczema and complains of itchy eyes, especially during the summer months. Examination shows bilateral mucoid discharge, conjunctival injection and eversion of both...

Oct/Nov 2014 Quiz

History 12-year-old cattle herder in Bangladesh. Loss of vision right eye – over 2/12 to no perception of light (NPL). B-scan showed choroidal thickening. Suspected to be choroidal ‘tumour’. Enucleated. Figure 1. Figure 2. Figure 3. Figure 4. Figure 5....

Oct/Nov 2018 Quiz

History A 37-year-old male was referred from the Emergency Eye Clinic with a swollen right upper eyelid. Symptom relieved with nonsteroidal anti-inflammatory drugs (NSAIDs). The initial clinical diagnosis was dacryoadenitis. The patient presented again six weeks later with 3mm proptosis,...