Original scientific paper
Soft Contact Lenses and Long Term Corneal Hypoxia: What is Changing with Silicone Hydrogel Lens?
Ksenija Ćuruvija-Opačić
Abstract
The aim of the study was to analyze the effect of silicone hydrogel high Dk contact lenses on the signs of long term corneal hypoxia noticed in patients who previously had worn soft contact lenses with low Dk. In 75 patients who had worn soft contact lenses, the signs of long term corneal hypoxia, i.e. limbal and bulbar hyperemia and corneal neovascularization were observed. Three and six months after refitting with silicone hydrogel lenses, regression of the signs of long term corneal hypoxia was estimated. The signs of long term corneal hypoxia showed regression in a significant number of patients at three months, and in almost all patients at six months. Refitting with silicone hydrogel contact lenses is indicated in previous wearers of soft contact lenses with signs of corneal hypoxia.
Keywords
Hypoxia; Corneal Oxygen Deficiency; Soft Contact Lenses; Silicone Hydrogel Contact Lenses
Hrčak ID:
14365
URI
Publication date:
2.4.2007.
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