You searched for "lens"

879 results found

Non-contact-lens-associated acanthamoeba keratitis

This retrospective study was done to study the clinical presentation and microbiological results of non-contact-lens-related acanthamoeba keratitis (AK). One hundred and ninety-four patients with microbiological / histopathological diagnosis of AK over four years were included. All patients had corneal scrapings...

Toric intraocular lens rotation related to the capsulorrhexis

The risk factors for postoperative rotation in the early post-operative period; a longer axial length, younger patients, and with the rule astigmatism as described by Miyake T et al. (JCRS 2014) in a case series of six eyes. This letter...

Influence of overall intraocular lens diameter on rotational stability

It has been shown that approximately one in three patients undergoing cataract surgery have >1.0D corneal astigmatism and managing this during surgery is important to achieve good refractive outcomes. One of the widely used ways of reducing preoperative astigmatism during...

Blame the lens – not its position – in refractive surprise

Aetiology of postoperative refractive surprise Weber coined the term “wrong eye, wrong intraocular lens, wrong patient” in 2008 as an aide memoir of major factors believed to underlie refractive surprise – defined as a significant unintended difference between dioptric refraction...

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...

Accuracy of intraocular lens power calculations in paediatric eyes

A study comparing the accuracy of the SRK II, SRK/T, Hoffer Q, Holladay 1, T2 and Super formula in predictive refractive outcomes in children undergoing primary IOL insertion into the capsular bag following cataract surgery. A total of 377 eyes...

Risk factors for lens dislocation post cataract surgery

This retrospective cohort study in Korea assessed the risk factors for intraocular lens (IOL) dislocation. They used national data of 2,162,191 patients who had had cataract surgery between 2009 and 2016. They excluded any patient who had an IOL dislocation...

Survey of parental experience of contact lens support

In this study, the service under evaluation is for paediatric aphakia patients. Soft contact lenses (CLs) are inserted at the time of surgery and remain in-situ for the immediate postoperative period. The aim is for families to undertake daily CLs...

Ophthalmic learning through the lens of cognitivism and constructivism

Learning in ophthalmology is multi-faceted, from understanding the fundamentals of eye anatomy and physiology to higher order skills such as performing cataract and vitreoretinal surgery. Having a strong foundation in the basics is a necessity for higher order knowledge synthesis,...

Squamous metaplasia of conjunctival epithelial cells with soft contact lens wear versus non-lens wearers

Conjunctiva is composed of non-squamous epithelial cells interspersed with goblet cells, which is a secretory epithelium. Squamous metaplasia is a transformation to non-secretory epithelium, ‘keratinised’ and enlargement of the conjunctival non-goblet cells and relatively shrunken nuclei are seen on impression...

Endothelial keratoplasty (EK) with anterior chamber intraocular lens (ACIOL) versus secondary posterior chamber lens (PCIOL)

This is a retrospective study of 82 eyes (23 ACIOL, 59 PCIOL) with a history of either pseudophakic (PBK) or aphakic (ABK) bullous keratopathy, who had descemet stripping automated endothelial keratoplasty (DSAEK) with retained or secondary ACIOL, or DSAEK with...

Intraocular Lens Surgery

This book is a valuable update on understanding IOL surgery for ophthalmologists in training and in practice. Broadly, the book is divided into six sections dealing with three main concepts: 1) IOL selection for routine and complex scenarios; 2) IOL...