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The Indications for Contact Lens Wear
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acrylic acuity aniseikonia anisometropia aphakia aphakic apical astigmatism axis back central optic back curve back optic diameter back surface binocular vision cast cells centre thickness chord clearance collagen conjunctiva contact lens wear contour corneal curvature corneal lenses correction dioptres edge lift effect endothelium epithelial fenestrated flatter fluorescein front curve front optic front surface graft haptic hard hydrogel hydrophilic instrument kerato keratoconus keratometer keratometry keratoscope lacrimation lathe layer lens fitting lens form limbal limbus liquid material measured membrane meridian method mire moulded movement myopia nasal negative normal obtained ocular oedema offset Ophthal optic zone Optom overall oxygen palpebral palpebral fissure patient peripheral curves plastic polishing practitioner preformed pressure prism produce radii refractive index result sagitta scleral lens shell soft lenses solution spherical steeper stroma tear film tear fluid techniques tension thin tion tissue tolerance tool toric toroidal transition tray trial lens vision visual