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567 results found

Optic nerve head perfusion response to reduced blood pressure and increased intraocular pressure

The purpose of this prospective study was to test the hypothesis that blood flow autoregulation in the optic nerve head has less reserve to maintain normal blood flow where there is a blood pressure induced decrease in ocular perfusion pressure...

International orthoptics for stroke

The purpose of this study was to consider the practice of orthoptists internationally in care provision for post stroke visual impairment through an international survey. An online survey of 30 questions was circulated via the International Orthoptic Association and completed...

A tarso-conjunctival flap for paralytic ectropion

This is a review of 110 patients with paralytic ectropion who underwent a lateral tarso-conjunctival flap procedure. The technique involves fashioning a 4-8mm wide lateral tarso-conjunctival flap in a similar way to a lateral Hughes flap. This is then sutured...

Diagnostic procedures in vitreoretinal lymphoma.

This paper presented a retrospective review of medical records of HIV negative immunocompetent patients diagnosed with vitreoretinal lymphoma between 1994 and 2012. The aim of the paper was to evaluate the type and number of diagnostic interventions required to confirm...

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....

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...

Diagnosis and management of orbital vascular malformations

This is an authoritative review of a controversial and difficult clinical area. The authors have experience of over 350 cases and provide a well-structured review of the classification and management of orbital vascular malformations. They emphasise the need to understand...

Correlation between anti-retinal antibodies and proliferative vitreoretinopathy (PVR)

The pathological basis of PVR is not clearly understood and there are no effective medications targeting this condition. This cross-sectional study looked at the possible association of anti-retinal antibodies with patients with PVR and retinal detachment (RD). Aqueous and vitreous...

Enzymatic clearance of anterior chamber infiltrate in uveitis

Aqueous humour (AH) which fills the anterior chamber (AC) of the eye provides nutrients to the cornea and the lens. Clearance of cellular and particular matter from AH is necessary for good visual acuity. In part this is achieved by...

Macular pigment and dark adaptation in older population with normal maculas

Macular pigment (MP) such as lutein, zeaxanthin and meso-zeaxanthin are highly concentrated in the fovea. They protect the retina from damage of ambient blue light via antioxidant properties. In older eyes with normal healthy retina, macular pigment optical density (MPOD)...

Using graphical illustration to predict giant cell arteritis

A nomogram is a chart or graph of scaled variables that facilitates the approximate computation of a mathematical function via intersecting lines. The objective of this study was to illustrate the use of a nomogram for the prediction of giant...

CD73 in aggressive basal cell carcinoma

This is a retrospective review looking at levels of CD73 in aggressive basal cell carcinomas (BCCs) that invade the orbit. Eleven patients who underwent orbital exenteration for invasion by BCCs were compared with 10 matched controls who had simple nodular...