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530 results found

Medial rectus anatomy in exotropia

This study investigates the differences between extraocular muscles in patients with intermittent exotropia and normal controls regarding muscle fibre arrangement and diameter, and distribution and activation of satellite cells. Fifteen patients were recruited having medial rectus resection surgery. Resection sections...

Improving distance stereopsis in intermittent exotropia with training

This study compared the control ability of patients with stereopsis and analysed the influencing factors of the improvement of distance stereopsis in children with intermittent exotropia. Seventy-eight children were recruited: 33 male, 45 female with mean age of 8.4 ±2.72...

A possible biomarker for diabetic retinopathy

Diabetic retinopathy (DR) is the most common form of diabetic eye disease, characterised by exudates, microaneurysms and haemorrhage. Early diagnosis is crucial for preventing visual loss. The risk of developing diabetic retinopathy is known to increase with age as well...

Nicotine accelerates diabetes induced retinal changes

This study investigated the influence of nicotine in an experimentally induced diabetic rat model. They used non-invasive high-resolution spectral domain optical coherence tomography (SD-OCT) imaging to provide quantitative information on the temporal alterations of retinal structures at the micrometer resolution...

A relationship between central serous retinopathy and obstructive sleep apnoea

This prospective study aimed to evaluate a relationship between central serous retinopathy (CSR) and obstructive sleep apnoea (OSA). Twenty-three subjects (six female and 17 male) were diagnosed with CSR and overnight polysonography was performed to record desaturation and apnoeic episodes....

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...

Retinal vessel diameter in pseudoexfoliation

Pseudoexfolation (PEX) is characterised by deposition of fibrillary extracellular material on ocular and extraocular tissue. Studies have shown that deposition in vascular structures cause hypoxia and ischaemia. In the eye, a decrease in blood supply to the optic nerve can...

MPH treatment effect in ADHD on choroidal vascular index

In this study the authors aimed to investigate the choroidal vascular index (CVI) in treatment-free children with ADHD, children regularly taking methylphenidate (MPH) and healthy controls. This was a prospective cross-sectional study of 52 patients with newly diagnosed ADHD, 46...

Intermittent exotropia with a positive Bielchowsky head-tilt test

This is a retrospective study from Korea, of 118 patients’ charts with intermittent exotropia (IXT) and divided into two groups; 50 patients showed positive Bielchowsky head tilt test (BHTT) and 68 with negative BHTT. Significant differences (p<0.05) in the parameters...

Lost muscle surgery

The authors present the results of transposition surgery without concomitant lateral rectus weakening in a retrospective review of five cases. Surgery was for large exotropia and marked limitation of adduction after surgical loss of the medial rectus muscle. Mean age...

Outcome of three to four muscle surgery for XT

This study evaluates the short-term outcomes of surgery involving three or four horizontal rectus muscles in patients with exotropia >40 prism dioptres. The authors evaluate the role of adjustable sutures and identify prognostic factors influencing surgical outcome. They assess the...

Change in infantile exotropia

This study investigated the clinical course of patients with infantile exotropia who initially presented with a small exo deviation of 10-18 prism dioptres. Eighty-six patients were reviewed: 35 with follow-up of >2 years without surgery and 51 with surgery. The...