OBJECTIVES To determine surface coverage of measurements using the sMap3D® corneo-scleral topographer in patients presenting for scleral lens fitting. METHODS Twenty-five eyes of 23 scleral lens patients were examined. Up-gaze, straight-gaze, and down-gaze positions of each eye were "stitched" into a single map. The percentage surface coverage between 10mm and 20mm diameter circles from corne...

VERY many different corneo-scleral stitches are used in cataract extraction, and it is generally agreed that such stitches should be capable of closing the corneo-scleral section promptly at any stage of the operation with perfect apposition of the lips of the wound and without danger of inversion. It should, furthermore, be simple to introduce, and not hinder the subsequent steps of the operat...

This paper proposes a perceptual model for the measurement of ‘punch’ in musical signals. Punch is an attribute that is often used to characterize music or sound sources that convey a sense of dynamic power or weight to the listener. A methodology is explored that combines signal separation and low level parameter measurement to produce a perceptually weighted ‘punch’ score. The parameters expl...

PURPOSE Osteochondral impaction grafting to manage isolated chondral defects in femoral condyles usually uses a metal punch to impact the grafts into predrilled cavities. Damage to the chondrocytes during impaction is a concern, however, and new methods are being sought to minimise the damage. We studied if impaction with a plastic punch instead of a metal punch reduces the extent of chondrocyt...

PURPOSE The purpose of this study was to evaluate the effects of intraocular pressure on the permeability of human and rabbit sclera to water, dexamethasone, and carboxyfluorescein. METHODS Scleral sections excised from moist-chamber-stored human globes or eyes obtained from euthanatized New Zealand White rabbits were mounted in a perfusion chamber that can create a transscleral pressure that...

Uveal effusion syndrome (UES) was reported by Schepens and Brockhurst in 1963,1 and later described as a nanophthalmic disorderwith a scleral abnormality.2 Gass3 described idiopathicUES and hypothesized that the causewas a congenital anomalyof the sclera and vortex veins that was related to aging, hormonal changes, or impairment of the permeabilityof the sclera.Using histologicalmethods,Trelsta...

BACKGROUND Scleral cross-linking (CXL) is a novel attempt to slow down the axial elongation process in animal eyes. As a natural CXL reagent, genipin would be also effective for the prevention of myopia process. Thus, the present study was designed to evaluate the effects of scleral cross-linking using genipin on the form-deprivation (FD) myopia process of guinea pigs. METHODS Twenty-seven 3-...