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Feb/Mar 2015 Quiz 2

History A 60-year-old white Caucasian male, with a history of acne, presented with slate grey pigmentation of his upper forehead, pre-auricular skin, peri-oral area, forearms and shins. The conjunctivae showed bilateral lower tarsal conjunctival multiple black dots. One of these...

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...

Review of pathogenesis of Acanthamoeba keratitis

In this review, the author summarised the current microbiomic and immunological evidence related to the pathogenesis of Acanthamoeba keratitis (AK). AK has been described for almost 50 years, but the exact biology of the disease remains perplexing. Acanthamoeba spp. are...

Atrophy and anti-VEGF

The aim of this study was to investigate treatment factors, along with ocular and systemic factors for their association with macular atrophy (MA) incidence in eyes with neovascular age-related macular degeneration (nAMD) treated with anti-VEGF aflibercept or ranibizumab according to...

Multimodal imaging in wet AMD

This novel study set out to determine grader agreement levels of various retinal imaging techniques, commonly used in the diagnosis of wet age-related macular degeneration (AMD). Images from 52 eyes were by examined by two different observers. All images were...

Feb/Mar 2016 Quiz 2

History A 30-year-old male presents with a phthisical left eye and undergoes enucleation. He has some lesions in his right eye that are under ophthalmic surveillance. Figure 1 is a low power of the enucleation. Figures 2, 3 and 4...

Jun/Jul 2014 Quiz

History An 80-year-old male had a cataract removed with intraocular lens (IOL) seven years previous. He presented with cloudy vision and it was noted that the IOL was intrinsically opaque. The IOL was replaced and sent for ophthalmic pathology assessment....

A rare neonatal presentation of bilateral dacryocele and choanal atresia

Following a routine pregnancy, a newly delivered baby boy, born at term, was found to have increased work of breathing, stridor and a left medial canthal swelling. The baby required 100% oxygen via a face mask to maintain oxygen saturations....

Life in the eye department

The crowd is gathering at the watering hole in the Serengeti that is Friday teaching at the Major Teaching Hospital. Would there be enough different species of consultant present or would there be insufficient numbers? If a critical mass of...

Refractive surprise after cataract surgery caused by posterior capsular striae

Cataract removal with intraocular lens (IOL) implantation is one of the most frequently performed surgeries in current clinical practice [1,2]. New microsurgical techniques and refined IOL power calculations allow excellent refractive outcomes. Refractive surprise following cataract surgery is uncommon [1-3]...

Managing a dislocated intraocular lens

A 70-year-old male patient is referred from the optician with a history of onset of double vision and examination shows a dislocated / subluxated IOL. How will you manage this patient? If the double vision is causing serious concern to...

Managing cataract surgery in a patient with diabetic maculopathy

A 56-year-old type 2 diabetic with previously treated bilateral diabetic maculopathy develops a cataract requiring surgery in the right eye. He has had grid laser previously, followed intermittently by intravitreal triamcinalone, Avastin and more recently Lucentis in both eyes. His...