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Rigid gas permeable contact lens and corneal topography
Author(s) -
YebraPimentel E.,
Giráldez M. J.,
Arias F. L.,
González J.,
González J. M.,
Parafita M. A.,
Febrero M.
Publication year - 2001
Publication title -
ophthalmic and physiological optics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.147
H-Index - 66
eISSN - 1475-1313
pISSN - 0275-5408
DOI - 10.1046/j.1475-1313.2001.00556.x
Subject(s) - contact lens , ophthalmology , corneal topography , radius of curvature , curvature , radius , lens (geology) , orthokeratology , cornea , optics , materials science , optometry , geology , medicine , mathematics , physics , geometry , mean curvature , computer science , computer security , mean curvature flow
Summary We investigated the effect of high Dk daily wear rigid gas permeable contact lenses on corneal topography. Eight young myopic subjects wore hard contact lenses for 21 days. Corneal topography was monitored using the EyeSys system. It was measured every day during the next 21 days after the fitting. We recorded the corneal radius of curvature at 16 peripheral points approximately 1, 2, 3 and 4 mm along the four principal meridians (nasal, superior, inferior and temporal). Our study showed that daily wear RGP Forum 210 does not produce significant alterations of the corneal curvature as a function of time.