Search Results - "Carney, L G"

Corneal topography and myopia. A cross-sectional study by Carney, LG, Mainstone, JC, Henderson, BA

“…Central corneal curvature is known to vary with refractive error, but the relation between corneal topography and ametropia is less clear. The current study…”
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Buffering in human tears: pH responses to acid and base challenge by CARNEY, L. G, MAUGER, T. F, HILL, R. M

“…The buffering capacity of tears collected from six young, healthy subjects was assessed using a microtitration technique. Each subject provided, on six…”
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Predicting success with orthokeratology lens wear : a retrospective analysis of ocular characteristics by CARKEET, N. L, MOUNTFORD, J. A, CARNEY, L. G

“…Orthokeratology procedures suffer from lack of predictability in the response of individuals. To identify factors contributing to this, we have retrospectively…”
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The relation between corneal and total astigmatism by KELLER, P. R, COLLINS, M. J, CARNEY, L. G, DAVIS, B. A, VAN SAARLOOS, P. P

“…Using computer-assisted videokeratoscopy we measured corneal astigmatism and compared these results over a range of corneal zone diameters with total ocular…”
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Visual performance in high myopia by Collins, J W, Carney, L G

“…The visual performances of eight low myopic subjects (-2 D to -7 D) and eight high myopic subjects (greater than -7 D) with normal visual acuities were…”
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Is the quality of vision with contact lenses adequate? Not only adequate but often superior by Carney, L G

“…Two factors govern the quality of vision with contact lenses (CLs): the fit and movement of the lens and the adequacy of its optics. Studies have not…”
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Influence of rigid contact lens base curve radius on tear pump efficiency by FINK, B. A, HILL, R. M, CARNEY, L. G

“…The effects of rigid contact lens base curve radius changes on tear pump efficiency were determined by measuring oxygen uptake on six with-the-rule corneas…”
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Oxygen levels beneath the closed eyelid by Efron, N, Carney, L G

“…The level of oxygen at the anterior corneal surface beneath the closed eyelid is shown to be equivalent to an atmosphere of 7.7% oxygen. This finding is in…”
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Using corneal oxygen demand to optimize rigid contact lens design by FINK, B. A, HILL, R. M, CARNEY, L. G

“…To evaluate the effects of base curve radius, overall diameter, and axial edge lift on rigid contact lens tear pump efficiency, corneal oxygen uptake rates…”
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Diurnal variation in human tear enzymes by Fullard, R J, Carney, L G

“…A fluorometric technique for measuring the activities of lactate dehydrogenase (LDH) and malate dehydrogenase (MDH) in human tear fluid is described…”
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Contact lens correction of visual loss in keratoconus by Carney, L G

“…Visual acuity and contrast threshold functions of 5 bilateral keratoconic patients were measured following spectacle correction and rigid contact lens…”
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Rigid contact lens design equivalencies of overall diameter and axial edge lift : individual variations by FINK, B. A, HILL, R. M, CARNEY, L. G

“…We compared the effects on rigid contact lens tear pump efficiency of changes in lens overall and optic zone diameter and of changes in lens axial edge lift by…”
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Influence of rigid contact lens overall and optic zone diameters on tear pump efficiency by FINK, B. A, HILL, R. M, CARNEY, L. G

“…To determine the effects of contact lens overall diameter on tear pump efficiency, oxygen uptake rates were measured for the open-eye condition and following…”
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Rigid contact lens design : effects of overall diameter changes on tear pump efficiency by FINK, B. A, CARNEY, L. G, HILL, R. M

“…The effects of rigid contact lens overall diameter changes on tear pump efficiency were studied for lenses of 7 overall diameters (8.2 to 10.0 mm in 0.3-mm…”
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Rigid lens tear pump efficiency : effects of overall diameter/base curve combinations by FINK, B. A, CARNEY, L. G, HILL, R. M

“…The effect of changes in rigid contact lens overall and optic zone diameters on tear pump efficiency were studied using a polarographic technique. Six overall…”
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Influence of power changes in single cut rigid contact lenses on tear pump efficiency by FINK, B. A, CARNEY, L. G, HILL, R. M

“…Differences between corneal oxygen uptake rates measured after 5 min of static (without blinking) and 5 min of dynamic (with blinking once every 5 s) non-gas…”
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Influence of lens design on the tear pump efficiency associated with plus-power rigid contact lenses : a comparison of single cut, lenticular, and minus-carrier designs by FINK, B. A, CARNEY, L. G, HILL, R. M

“…In order to determine the tear pump efficiencies associated with three plus-power rigid contact lens designs (single cut, lenticular, and minus-carrier), we…”
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Corneal oxygenation: blink frequency as a variable in rigid contact lens wear by Fink, B A, Hill, R M, Carney, L G

“…Using a micropolarographic system, we measured the responses of six human corneas to nine oxygen exposure conditions: to air (continuous open-eye) with no…”
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Responses to oxygen deprivation : variations among human corneas by FINK, B. A, CARNEY, L. G, HILL, R. M

“…The cornea's interface with the atmosphere makes it uniquely accessible among avascular tissue for the study of local oxygen demand and proximal reservoir…”
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Influence of palpebral aperture height on tear pump efficiency by FINK, B. A, CARNEY, L. G, HILL, R. M

“…Oxygen uptake rates were measured on 6 human corneas fitted with a standardized rigid contact lens in order to determine the relation between vertical…”
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