L Sorbara1, L Jones, D Williams-Lyn. 1. Centre for Contact Lens Research, School of Optometry, University of Waterloo, Ontario, Canada. gsorbara@uwaterloo.ca
Abstract
PURPOSE: To describe the refitting of a soft lens wearer into a silicone hydrogel lens due to neovascularization. This change, in turn, caused contact lens induced papillary conjunctivitis (CLPC) and a further refitting was necessary. METHODS: The patient was refit into a high Dk surface treated silicone hydrogel with a high modulus value. A second refitting was undertaken into a lower Dk silicone hydrogel contact lens with a lower modulus value which had no surface treatment but incorporated an internal wetting agent. RESULTS: A high Dk/t lens was used to resolve existing neovascularization and chronic hyperaemia. Subsequently, CLPC response occurred, possibly due to a combination of factors, resulting in irritation of the palpebral conjunctiva. This resulted in temporary lens discontinuation. A second silicone hydrogel lens was fit, along with the use of a non-preserved care system, which led to improvement and eventual resolution of the condition. CONCLUSION: High Dk silicone hydrogel lenses have shown excellent efficacy in resolving hypoxic complications such as neovascularization and hyperaemia. However, attention needs to be paid to their potential effect on the upper tarsal plate. More than one silicone hydrogel lens may be needed to help resolve these issues.
PURPOSE: To describe the refitting of a soft lens wearer into a silicone hydrogel lens due to neovascularization. This change, in turn, caused contact lens induced papillary conjunctivitis (CLPC) and a further refitting was necessary. METHODS: The patient was refit into a high Dk surface treated silicone hydrogel with a high modulus value. A second refitting was undertaken into a lower Dk silicone hydrogel contact lens with a lower modulus value which had no surface treatment but incorporated an internal wetting agent. RESULTS: A high Dk/t lens was used to resolve existing neovascularization and chronic hyperaemia. Subsequently, CLPC response occurred, possibly due to a combination of factors, resulting in irritation of the palpebral conjunctiva. This resulted in temporary lens discontinuation. A second silicone hydrogel lens was fit, along with the use of a non-preserved care system, which led to improvement and eventual resolution of the condition. CONCLUSION: High Dk silicone hydrogel lenses have shown excellent efficacy in resolving hypoxic complications such as neovascularization and hyperaemia. However, attention needs to be paid to their potential effect on the upper tarsal plate. More than one silicone hydrogel lens may be needed to help resolve these issues.
Authors: Matteo M E Metruccio; Stephanie J Wan; Hart Horneman; Abby R Kroken; Aaron B Sullivan; Tan N Truong; James J Mun; Connie K P Tam; Robin Frith; Laurence Welsh; Melanie D George; Carol A Morris; David J Evans; Suzanne M J Fleiszig Journal: Ocul Surf Date: 2018-11-12 Impact factor: 5.033
Authors: Nery García-Porta; Laura Rico-del-Viejo; Helena Ferreira-Neves; Sofia C Peixoto-de-Matos; Antonio Queirós; José M González-Méijome Journal: Biomed Res Int Date: 2015-03-31 Impact factor: 3.411
Authors: Nery García-Porta; Laura Rico-Del-Viejo; Alba Martin-Gil; Gonzalo Carracedo; Jesus Pintor; José Manuel González-Méijome Journal: Biomed Res Int Date: 2016-08-31 Impact factor: 3.411