Ben T Parkin

Learn More
BACKGROUND In the 4 year period (1988-91 there were nine cases of bacterial keratitis in five critically ill patients on an intensive care unit ('unit A'), all except one due to Pseudomonas aeruginosa. Many of these patients had serious ocular complications requiring surgery and all surviving patients were left with significant visual deficits. One further(More)
BACKGROUND/AIMS There are no nationally agreed guidelines on preoperative management of patients who are on aspirin or warfarin therapy. There is considerable evidence that complication rates in anticoagulated patients are low whereas there are higher rates of thromboembolic complications in those whose therapy is manipulated. This survey aimed to establish(More)
AIMS To compare stereophotographic and monophotographic optic disc assessments made using a digital optic disc stereo camera. METHODS Stereo digital optic disc photographs of 150 selected patients who had presented to a glaucoma clinic were assessed by two masked observers on separate occasions using (1) the stereophotographs and a stereoviewer, (2) a(More)
PURPOSE To assess the information included in optometrist referrals for cataract to the Hospital Eye Service with reference to the recommendations made by the Department of Health in "Action on Cataracts" and the resultant surgical listing rates. METHODS We prospectively collected and analysed the information included in three different types of(More)
PURPOSE Early phase keratoconic corneas and their cultured keratocytes abnormally produce the Mr 62,000 form of the matrix metalloproteinase-2 (MMP-2). It is known that platelet derived growth factor (PDGF) and transforming growth factor-beta (TGF-beta) are involved in the regulation of MMP activity and tissue inhibitor of metalloproteinase (TIMP)(More)
PURPOSE To review the clinical, radiologic, serologic, histopathologic, immunohistochemical, and molecular genetic features of patients having Sjögren's syndrome (SS) with lacrimal gland enlargement. DESIGN Retrospective case series review. PARTICIPANTS Fourteen patients histopathologically diagnosed with SS with lacrimal enlargement. Twenty-three age-(More)
PURPOSE This experiment reports the independence of first- and second-order processing mechanisms in form perception. METHODS Symmetrical dot patterns were created using either luminance-increment dots (luminance above background), or texture-defined dots (average luminance equal to background). The proportion of luminance increment or texture dots(More)
PURPOSE To report the histopathologic findings of explanted Medpor lower eyelid spacers (LES) in complicated cases. MATERIALS AND METHODS Four cases of lower eyelid retraction due to thyroid orbitopathy (n = 2), facial nerve palsy (n = 1), and post-enucleation socket syndrome (n = 1) were treated with Medpor LES. RESULTS All implants were removed(More)
OBJECTIVE To compare the tissue reaction produced by 2 gauges of implanted polyglactin 910(Vicryl) suture material in human skin. METHODS A prospective, double masked, parallel randomized IRB approved clinical trial. Consecutive patients with involutional entropion and horizontal eyelid laxity were randomly allocated to 5/0 or 7/0 gauge test suture(More)