You searched for "pathology"

1269 results found

Essentials of OCT in Ocular Disease

Sir Isaac Newton was the first to establish the technique of low coherence white light interferometry. Following on from this, the principle of laser interferometry as an imaging modality for retina was applied by David Huang and his associates in...

Dilate or not in subconjunctival haemorrhage?

There is often surprisingly little evidence in common clinical conditions. Spontaneous non-traumatic subconjunctival haemorrhage (SCH) is frequently encountered in emergency and walk-in clinic visits. In some centres, a dilated fundus exam is performed to exclude retinal pathology. This retrospective study...

Prevalence of visual function impairment in congenital ptosis

This study sought to evaluate the prevalence of visual function loss in the setting of congenital ptosis. This was a retrospective study of 155 eyes of 134 patients; 72 males and 62 females. Mean age at diagnosis was 7.8 ±5.8...

Normative reference values for optic nerve sheath diameter in children

The purpose of this study was to measure optic nerve sheath diameter (ONSD) in paediatric patients without pathology using brain CT performed for various reasons and to provide normal tomographic reference values. This was a retrospective study of CT scans...

Aug/Sep 2014 Quiz 1

History A 50-year-old female with a history of smoking, weight loss and cough presents to the ophthalmology clinic with a distorted pupil. Examination reveals a mass on the surface and within the iris (see Figure 1). The ophthalmologists decide to...

A window to 2024 and beyond?

The connection between the eye and systemic diseases has been acknowledged for millenia. Historical records suggest that ancient civilisations had some understanding of the eye’s significance beyond its primary function in vision. For instance, in ancient Egypt, the ‘Eye of...

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...

Unravelling ocular motility

Ocular motility can often be a slightly abstract concept during the earlier years of ophthalmology training. A large variance on what embodies normality; mythical concepts like fusion and binocular vision, examination techniques that can be fiddly, and complex neuroanatomy all...

The eyes of healthy children effected by virtual schooling

The authors aimed to assess how the increased use of technology during a day of virtual school as a result of the COVID-19 pandemic affected the eyes of healthy children. Children aged 10 to 17 years who attended school virtually...

Radiologic characteristics of cavernous venous malformations

This study is a retrospective review of cases with a preoperative radiologic diagnosis of cavernous venous malformations (CVMs) over 30 years. The aim of this study was to define imaging characteristics of CVMs, which will help differentiate these lesions from...

Comparison of false-negative responses in glaucoma patients and normal observers

The authors compared false negative rates for full threshold (FULL) and Swedish Interactive Threshold Algorithm (SITA) standard automated perimetry in healthy control subjects and glaucoma patients. Twenty-four subjects underwent visual field testing of one eye five times within six weeks...

Lacquer cracks

The purpose of this Japanese study was to analyse the morphologic features and natural progression patterns of lacquer cracks (LC). The presence of linear hyperfluorescence on the fundus fluorescein angiography (FFA) was used as the standard for diagnosing the presence...