You searched for "Intraocular"

1017 results found

Binocular summation with low contrast

The magnitude of binocular summation was investigated in normal control subjects using four different letter charts of varying type with fixed and variable contrast levels and spatial frequency to determine which tests most readily reveal binocular summation in normal subjects....

Iris chafing from displaced single-piece acrylic IOL

A 74-year-old man had persistent 3+ cell one month following left eye cataract extraction, complicated by anterior capsular rent and zonular dialysis at 7 o’clock, with single-piece acrylic intraocular lens implantation (IOL) in the capsular bag. Figure 1: Haptic-like transillumination...

Effects of phacoemulsification on IOP and drug use in glaucoma

For patients with comorbid cataract and primary open-angle glaucoma (POAG), guidance is lacking as to whether cataract extraction and traditional filtering surgery should be performed as a staged or combined procedure. Achieving this guidance requires an evidence-based understanding of the...

Retinoblastoma management update (part 1): clinical features, diagnosis and genetics

The first of a two part series, this article will discuss the clinical features, diagnosis and genetic aspects of retinoblastoma. Manoj Parulekar is based at Birmingham Children’s Hospital, one of the two designated national retinoblastoma and paediatric ocular oncology treatment...

Cutaneous malignant melanoma metastasis to pseudophakic lens

Metastases to the eye and orbit are rare and intraocular cutaneous malignant melanoma metastasis (ICMM) is exceedingly rare, representing around 5%. There have only been three previous cases of ICMM to the lens in the literature, all of which presented...

Ophthalmology elective: a local experience

Dr Rajan Sondh talks about medical electives and how he believes they are an opportunity to explore career interests, giving undergraduates an opportunity to develop skills in areas that they wouldn’t normally encounter on placements. Typically, electives are taken abroad,...

Simple approach to prevent capsule tear-out during capsulorhexis creation in hyper mature cataracts

Puncturing the anterior capsule in the anterior chamber so that the pressure falls below intracapsular tension causes the rhexis to extend out to the equator. If this develops into a tear that wraps around the entire lens it is called...

IOL effect on refraction

The authors aimed to evaluate the effect of age at primary intraocular lens (IOL) implantation on the rate of refractive growth during childhood. This was a retrospective study of 296 eyes of 219 patients. Forty-six met inclusion criteria; 28 unilateral...

Clinical outcomes of a supplementary sulcus IOL

In this retrospective study, the authors examined 31 eyes of 20 patients who had received a supplementary trifocal sulcus IOL in addition to a ‘bag-in-the-lens’ IOL. Implantation of a ‘bag-in-the-lens’ IOL requires the creation of anterior and posterior capsulotomies, followed...

A novel approach to suprachoroidal haemorrhage drainage

The authors describe a novel surgical technique for external drainage of choroidal detachment / suprachoroidal haemorrhage with a butterfly needle. Six eyes with serous and / or haemorrhagic choroidal detachments (five from complicated cataract surgery with vitreous loss, one globe...

Review of paediatric open globe injuries in the US

This study used the Nationwide Inpatient Sample (NIS) database to describe the trends in types, demographics and incidence of paediatric open globe injuries in the US. The NIS database covers about 97% of the US population and about 20% of...

Effects of blood donation on the physiology of the eye

Hypovolaemia is a state of decreased blood volume, the reduction of which reduces tissue perfusion which may in turn lead to cellular hypoxia and end-organ damage. In blood donation, 500ml of blood is collected in ten minutes. This equates to...