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Contact Lens Materials
Soft Lens Fitting
External Eye Photography
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alignment angle axis back central optic Bausch and Lomb BCOR bi-toric bifocal blinking cause cent central optic portion centre thickness changes Chapter chuck clinical Colour Plate conjunctival contact lens corneal astigmatism corneal curvature corneal lens corneal oedema correct cylinder degrees dioptres discomfort distance portion effect epithelial Eurocon fenestration fluorescein focimeter haptic hard lens HEMA hydrogel hydrophilic hydrophilic lenses keratoconus keratometer keratometer reading keratometry laboratory lens fitting lens material lens wearers lenses limbal limbus lower lid measured meridian method myopia normal ocular Ophthal Optician Optom overall patient peripheral curves polishing polymers polymethyl methacrylate position practitioner prism ballasted pupil radii refractive index removed Rengstorff residual astigmatism retinoscopy rotation saline solution Sauflon scleral lens segment semi-scleral shell slit lamp soft contact lenses soft lens spectacle spherical back stabilization stain steeper tears tion toroidal back central toroidal back surface trial lens truncation vertical vision visual acuity water content Westerhout worn