You searched for "hyperopia"
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...Biometry and IOL choice errors
In the next instalment of this series I focus on problems associated with biometry and intraocular lens (IOL) selection for cataract surgery. I have taken previous medicolegal cases I have dealt with and tried to extract some learning points and...
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...
Randomised trial of multifocal intraocular lens versus monovision
The authors report on a randomised, multicentre clinical trial comparing the outcomes of Tecnis ZM900 diffractive multifocal intraocular lenses (IOL) versus monovision with Akreos AO monofocal IOL (dominant eye targeted for emmetropia and non-dominant eye targeted for -1 to -1.50...
Association between COVID-19 restrictions and accelerated myopia progression
A retrospective case review aimed to evaluate the association between home confinement and progression of myopia in Argentina during 2020. Data was collected using an online survey of ophthalmologists throughout Argentina. The inclusion criteria included being five to 18-years-old, found...
