You searched for "refraction"

2336 results found

Is lens constant optimisation for IOLMaster indispensable in order to achieve a good refractive outcome?

A study of refractive outcomes following cataract surgery was carried out with the aim of comparing the postoperative refractive outcomes against Royal College of Ophthalmologists standards and to determine the extent of association between accuracy of intraocular lens (IOL) power...

Anything new in the control of myopia progression?

This is a review article looking at up to date concepts and evidence in myopia control from current literature and studies. The authors identified that myopia control is best measured in absolute change in axial length as opposed to refraction...

Cyclo spray vs. drops

The purpose of this study was to investigate whether cyclo spray is better tolerated than cyclo drops and to assess the adequacy of cycloplegia achieved by spray for objective refraction. Cyclo drops were given to 72 children and cyclo spray...

Confocal microscopy and corneal graft rejection

Forty-five patients following penetrating keratoplasty (PK) were examined with the HRT III Rostock Cornea Module confocal microscope at various points after their surgery for two years. Activated keratocytes (AKs) were counted manually and their mean number evaluated. A pattern was...

Surgical treatment of high myopia

Although several excellent modalities are available for correcting high myopia, the surgical treatment of this condition remains one of the biggest challenges for refractive surgeons; this group of patients is often very dependent on contact lenses. If these patients become...

Cost-effectiveness framework discussion for vision screening

The authors present a discussion paper on hypothetical, but representative, examples of post-referral costs that may result from different screening options up to the point of discharge from specific services. Data was taken from a recent (2019) systematic review (with...

Topography-guided photorefractive keratectomy in the treatment of corneal scarring

This study reports the outcome of topography-guided photorefractive keratectomy (TG-PRK) in the treatment of patients with corneal scarring. A retrospective case series including six eyes of six patients with corneal scarring and irregular astigmatism who underwent topography guided PRK. The...

Measurement considerations in OCT results with suspected glaucoma

The purpose of this study was to determine retinal nerve fibre (RNFL) thickness parameters and assess the relationship between the cup-to-disc (CD) ratio and RNFL measurements of paediatric patients who had optic nerve appearance suspicious for glaucoma based on enlarged...

Surgery technique for subluxation in Marfan syndrome

The authors evaluated the efficacy and safety of bimanual capsulorrhexis combined with sutureless scleral-fixated IOL implant in children with Marfan syndrome. Seven children (14 eyes) with subluxated lenses underwent bilateral surgery; four female, three male with mean age of 7.1...

PlusoptiX and SPOT screening

The goal of this study was to determine whether an instrument that uses referral criteria having a high specificity (plusoptiX S08) would fail to refer children who have significant amblyopia and who would have been detected by an instrument using...

Myopia-protective against diabetic retinopathy

This meta-analysis evaluates the current evidence of the relationship between myopia and diabetic retinopathy (DR) risk. A systematic search was performed up to April 2015. Three models were used to assess the association between myopia and risk of DR: axial...

Myopia rate of change from 5-20 years

Data was collected from the 2008-12 KNHANES survey and the study included 7695 of 9351 subjects with refractive data. The mean age was 11.8 years (5-20 range) with 48.2% female. Mean spherical equivalent was -1.82 ±2.23D. For five-year-olds, the mean...