Browsing University of Waterloo by Subject "contact lenses"
Now showing items 1-8 of 8
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Contact Lenses and Tear Film Lipids.
(University of Waterloo, 2017-12-20)Introduction Lipids are essential tear components that aid the stability of the tear film (TF) to protect it from excess evaporation. The composition, conformation, and function of TF lipids are jeopardized by external ... -
The Effect of Freezing on the Elution of PVA from Contact Lenses
(University of Waterloo, 2024-04-30)Contact lenses are widely used, with over 140 million wearers globally. Wearing contact lenses can cause symptoms of discomfort and dryness, which affect nearly half of all wearers. To address this concern, this thesis ... -
Examination of Contact Lenses and Dry Eye Using Evaporimetry
(University of Waterloo, 2022-01-14)Purpose: Evaporimetry is a non-invasive technique used to assess the stability of the tear film. The test measures the rate of tear evaporation, and has been used to investigate dry eye, contact lenses, and the efficacy ... -
In vitro analysis of wettability and physical properties of blister pack solutions of hydrogel contact lenses
(University of Waterloo, 2010-04-30)Contact lens success is primarily driven by comfort of the lens in eye. Over the years, many modifications have been made to the lens surface and bulk material to improve comfort of the lens, however 50% of contact lens ... -
In vitro and ex vivo wettability of hydrogel contact lenses
(University of Waterloo, 2006)The wettability of contact lenses has become an area of intense research, with the belief that the more "hydrophilic" or wettable the lens surface is, the more comfortable the lens may be, as the posterior surface of the ... -
Nanoparticle Notch Filters for Selective Filtering of Blue Light in Contact Lenses
(University of Waterloo, 2018-08-20)The visible wavelengths are essential to a normal colour vision, however overexposure of high-energy visible (HEV) light may be damaging to both ocular and non-ocular health. Some health concerns associated with HEV light ... -
Protein sorption to contact lenses and intraocular lenses
(University of Waterloo, 2009-12-22)Purpose: To locate protein sorption on the surface and inside the matrix of soft contact lens materials and intraocular lenses (IOL). Methods: The proteins albumin and lysozyme were investigated as they are highly ... -
Wavefront assessment and correction of the rat eye for two photon excitation therapies
(University of Waterloo, 2016-08-31)Photodynamic therapy (PDT) is a treatment in which light excites a photosensitive drug to produce oxygen radicals that kills nearby cells. Today, PDT’s is most commonly used application is for the destruction of cancerous ...