You searched for "impairment"

2000 results found

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...

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...

Descemetorhexis without endothelial keratoplasty

This retrospective study examined outcomes of the largest reported series of eyes, which underwent Descemetorhexis without endothelial keratoplasty (DWEK) for Fuch’s endothelial dystrophy with mean 10 months of follow-up. Seventeen eyes were included in analysis; with 82.4% achieving corneal clearance...

Conjunctival inflammation in glaucoma patients

Numerous studies have demonstrated that topical medications and preservatives used for the management of glaucoma can induce significant histopathologic and inflammatory changes in the ocular surface. This study describes an increased expression of major histocompatibility complex class II antigen HLA-DR,...

Long scleral tunnel technique to prevent tube exposure of Ahmed glaucoma valve

This retrospective study was done to evaluate the efficacy of long scleral tunnel technique and compare it with pericardium patch graft in preventing tube exposure of Ahmed glaucoma valve. Seventy-eight eyes of 73 patients were included. In group 1 patients,...

Nystagmus and associated diagnosis

Patients with nystagmus attending a Low Vision clinic in Sweden were included in this study. Medical records were reviewed to exclude those with general diagnoses that could explain the nystagmus. The remaining group of patients underwent subjective refraction, retinoscopy, ocular...

RPE use similar pathway to regulatory T cells to inhibit immune response

Retinal pigment epithelial (RPE) cells form an important part of the blood-retinal barrier that protects the neuronal cells responsible for sight. RPE cells are involved in innate and adaptive immune responses via expression of surface molecules and release of cytokines....

Polymerase chain reaction evaluation of infectious multifocal serpiginoid choroiditis

This paper presents a retrospective review of infectious agents associated with multifocal serpiginous choroiditis (MSC) based on polymerase chain reaction (PCR) evaluation and specific antimicrobial therapy. The study included 13 patients with MSC who were evaluated with PCR for the...

Vital dyes in ophthalmology

This comprehensive review gives an excellent summary of the uses and properties of the different dyes available to aid better visualisation and diagnoses in ophthalmology. The authors clearly display the pharmacological properties, molecular details, osmolarity and indications in clinical ophthalmology...

Patient-reported outcomes in oculoplastic surgery

This is an important if somewhat difficult to grasp article which tries to formally address the subject of patient-reported outcomes in oculofacial surgery. The authors have conducted an extensive review of the literature searching for instruments (questionnaires) which have been...

MicroRNA mediate retinoblastoma signal transduction

MicroRNAs (miR) are small non-coding single-stranded RNA molecules, normally 22 nucleotides long. There is a large family of miR that control protein expression by binding to mRNAs, leading to their degradation. One important role of miR is in tumours where...

Corneal stroma modelling under hypoxic conditions

The cornea is exposed to hypoxia under several conditions including sleep, inflammation and wound healing. Being an avascular tissue to maintain transparency, how the cornea homeostatic controls oxygen tension is important. To address this process two models were utilised; a...