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Gifford P, 2023, 'Orthokeratology', in Contact Lens Practice, Fourth Edition, pp. 322 - 332.e2, http://dx.doi.org/10.1016/B978-0-7020-8427-0.00030-1
Gifford P, 2018, 'Orthokeratology', in Contact Lens Practice, pp. 296 - 305.e2, http://dx.doi.org/10.1016/B978-0-7020-6660-3.00032-0
Wolffsohn JS; Dhallu S; Aujla M; Laughton D; Tempany K; Powell D; Gifford K; Gifford P; Wan K; Cho P; Stahl U; Woods J, 2022, 'International multi-centre study of potential benefits of ultraviolet radiation protection using contact lenses', Contact Lens and Anterior Eye, 45, http://dx.doi.org/10.1016/j.clae.2022.101593
Kang P; Maseedupally V; Gifford P; Swarbrick H, 2021, 'Predicting corneal refractive power changes after orthokeratology', Scientific Reports, 11, http://dx.doi.org/10.1038/s41598-021-96213-x
Morgan PB; Murphy PJ; Gifford KL; Gifford P; Golebiowski B; Johnson L; Makrynioti D; Moezzi AM; Moody K; Navascues-Cornago M; Schweizer H; Swiderska K; Young G; Willcox M, 2021, 'CLEAR - Effect of contact lens materials and designs on the anatomy and physiology of the eye', Contact Lens and Anterior Eye, 44, pp. 192 - 219, http://dx.doi.org/10.1016/j.clae.2021.02.006
Richdale K; Cox I; Kollbaum P; Bullimore MA; Bakaraju RC; Gifford P; Plainis S; McKenney C; Newman S; Tomiyama ES; Morgan PB, 2021, 'CLEAR – Contact lens optics', Contact Lens and Anterior Eye, 44, pp. 220 - 239, http://dx.doi.org/10.1016/j.clae.2021.02.005
Gifford KL; Gifford P; Hendicott PL; Schmid KL, 2020, 'Zone of Clear Single Binocular Vision in Myopic Orthokeratology', Eye and Contact Lens, 46, pp. 82 - 90, http://dx.doi.org/10.1097/ICL.0000000000000614
Gifford P; Tran M; Priestley C; Maseedupally V; Kang P, 2020, 'Reducing treatment zone diameter in orthokeratology and its effect on peripheral ocular refraction', Contact Lens and Anterior Eye, 43, pp. 54 - 59, http://dx.doi.org/10.1016/j.clae.2019.11.006
Gifford KL; Gifford P; Hendicott PL; Schmid KL, 2020, 'Stability of peripheral refraction changes in orthokeratology for myopia', Contact Lens and Anterior Eye, 43, pp. 44 - 53, http://dx.doi.org/10.1016/j.clae.2019.11.008
Jaisankar D; Liu Y; Kollbaum P; Jaskulski M; Gifford P; Suheimat M; Atchison DA, 2020, 'Nasal-temporal asymmetry in peripheral refraction with an aspheric myopia control contact lens', Biomedical Optics Express, 11, pp. 7376 - 7394, http://dx.doi.org/10.1364/BOE.406101
Wolffsohn J; Dhallu S; Aujla M; Laughton D; Tempany K; Powell D; Gifford K; Gifford P; Wan K; Cho P; Stahl U; Woods J, 2019, 'Global Multi-Centre study of Potential Benefits of Ultra-Violet Light blocking Contact Lenses', Contact Lens and Anterior Eye, 42, pp. e16 - e17, http://dx.doi.org/10.1016/j.clae.2019.10.056
Maseedupally V; Gifford P; Tran M; Priestley C; Kang P, 2019, 'The impact of changing optic zone diameter on treatment zone parameters during orthokeratology', Contact Lens and Anterior Eye, 42, pp. e35 - e35, http://dx.doi.org/10.1016/j.clae.2019.10.118
Gifford K; Gifford P; Hendicott PL; Schmid KL, 2017, 'Near binocular visual function in young adult orthokeratology versus soft contact lens wearers', Contact Lens and Anterior Eye, 40, pp. 184 - 189, http://dx.doi.org/10.1016/j.clae.2017.01.003
Maseedupally VK; Gifford P; Lum E; Naidu R; Sidawi D; Wang B; Swarbrick H, 2016, 'Treatment Zone Decentration During Orthokeratology on Eyes With Corneal Toricity', Optom Vis Sci, 31
Gifford P; Gifford KL, 2016, 'The future of myopia control contact lenses', Optometry and Vision Science, 93, pp. 336 - 343, http://dx.doi.org/10.1097/OPX.0000000000000762
Maseedupally V; Gifford P; Swarbrick H, 2015, 'Variation in normal corneal shape and the influence of eyelid morphometry', Optometry and Vision Science, 92, pp. 286 - 300, http://dx.doi.org/10.1097/OPX.0000000000000511
Gifford P; Kang P; Swarbrick H; Versace P, 2014, 'Changes to corneal aberrations and vision after presbylasik refractive surgery using the MEL 80 platform', Journal of Refractive Surgery, 30, pp. 598 - 603, http://dx.doi.org/10.3928/1081597X-20140709-01
Kang P; Gifford P; Swarbrick H, 2013, 'Can manipulation of orthokeratology lens parameters modify peripheral refraction?', Optometry and Vision Science, 90, pp. 1237 - 1248, http://dx.doi.org/10.1097/OPX.0000000000000064
Maseedupally V; Gifford P; Lum E; Swarbrick H, 2013, 'Central and paracentral corneal curvature changes during orthokeratology', Optometry and Vision Science, 90, pp. 1249 - 1258, http://dx.doi.org/10.1097/OPX.0000000000000039
Gifford P; Li M; Lu H; Miu J; Panjaya M; Swarbrick HA, 2013, 'Corneal versus ocular aberrations after overnight orthokeratology', Optometry and Vision Science, 90, pp. 439 - 447, http://dx.doi.org/10.1097/OPX.0b013e31828ec594
Gifford P; Cannon T; Lee C; Lee D; Lee HF; Swarbrick HA, 2013, 'Ocular aberrations and visual function with multifocal versus single vision soft contact lenses', Contact Lens and Anterior Eye, 36, pp. 66 - 73, http://dx.doi.org/10.1016/j.clae.2012.10.078
Gifford P; Swarbrick HA, 2013, 'Refractive changes from hyperopic orthokeratology monovision in presbyopes', Optometry and Vision Science, 90, pp. 306 - 313, http://dx.doi.org/10.1097/OPX.0b013e318287328e
Northey L; Gifford P; Boneham GC, 2012, 'Comparison of topcon optical coherence tomography and ultrasound pachymetry', Optometry and Vision Science, 89, pp. 1708 - 1714, http://dx.doi.org/10.1097/OPX.0b013e3182775c8c
Gifford PJ; Cannon T; Lee C; Lee D; Lee H-F; Swarbrick H, 2012, 'Dallos Award: What do multifocal contact lenses offer over single vision?', Contact Lens and Anterior Eye, 35, pp. e34 - e34, http://dx.doi.org/10.1016/j.clae.2012.10.005
Gifford P; Swarbrick HA, 2012, 'Repeatability of internal aberrometry with a new simultaneous capture aberrometer/corneal topographer', Optometry and Vision Science, 89, pp. 929 - 938, http://dx.doi.org/10.1097/OPX.0b013e31825017c4
Gifford P; Maseedupally V; Lum E; Swarbrick H, 2011, '34 Regional changes to corneal curvature in myopic orthokeratology', Contact Lens and Anterior Eye, 34, pp. S24 - S25, http://dx.doi.org/10.1016/s1367-0484(11)60113-6
Gifford P; Alharbi AA; Swarbrick HA, 2011, 'Corneal thickness changes in hyperopic orthokeratology', Investigative Ophthalmology and Visual Science, 52, pp. 3648 - 3653, http://dx.doi.org/10.1167/iovs.10-6323
Kang P; Gifford P; McNamara P; Wu J; Yeo S; Vong B; Swarbrick HA, 2010, 'Peripheral Refraction in Different Ethnicities', Investigative Ophthalmology and Visual Science, 51, pp. 6059 - 6065
Gifford P; Au V; Hon B; Siu A; Xu P; Swarbrick HA, 2009, 'Mechanism for corneal reshaping in hyperopic orthokeratology', Optometry and Vision Science, 86, pp. 306 - 311
Gifford P; Swarbrick HA, 2009, 'The effect of treatment zone diameter in hyperopic orthokeratology', Ophthalmic and Physiological Optics, 29, pp. 584 - 592
Gifford P; Swarbrick HA, 2008, 'Time Course of Corneal Topographic Changes in the First Week of Overnight Hyperopic Orthokeratology', Optometry and Vision Science, 85, pp. 1165 - 1171
Gifford P; Evans BJW; Morris J, 2006, 'A clinical evaluation of Systane', Contact Lens and Anterior Eye, 29, pp. 31 - 40, http://dx.doi.org/10.1016/j.clae.2005.12.003
Gifford P; Gifford K, 2023, 'Descriptive statistical comparison of interventions for myopia control', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, LA, New Orleans, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), LA, New Orleans, 23 April 2023 - 27 April 2023
Gifford K; Maher C; Gifford P, 2023, 'The limits of evidence-based myopia control', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, LA, New Orleans, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), LA, New Orleans, 23 April 2023 - 27 April 2023
Jaisankar D; Suheimat M; Kollbaum PS; Jaskulski MT; Gifford P; Liu Y; Atchison DA, 2020, 'Peripheral refraction performance of a myopia control aspheric multifocal contact lens', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, ELECTR NETWORK, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), ELECTR NETWORK, 01 May 2020 - 07 May 2020
Gifford P; Tran M; Priestley C; Maseedupally V; Kang P, 2019, 'Can orthokeratology lenses be modified to alter peripheral refraction?', in Investigative Ophthalmology & Visual Science, Vancouver, BC, presented at The Annual Meeting of the Assocation for Research in Vision and Ophthalmology (ARVO), Vancouver, BC, 28 April 2019 - 02 May 2019
Gifford P; Stancombe C, 2018, 'Automated classification of post orthokeratology corneal topography difference maps', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, HI, Honolulu, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), HI, Honolulu, 29 April 2018 - 03 May 2018
Gifford K; Gifford P; Hendicott PL; Schmid KL, 2017, 'Binocular vision in orthokeratology contact lens wear for myopia', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, MD, Baltimore, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) - Imaging in the Eye, MD, Baltimore, 06 May 2017 - 11 May 2017
Gifford P; Gifford K; Hendicott PL; Schmid KL, 2017, 'Relative peripheral refraction and binocular vision changes in myopic orthokeratology', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, MD, Baltimore, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO) - Imaging in the Eye, MD, Baltimore, 06 May 2017 - 11 May 2017
Kang PH; gifford P; swarbrick H, 2014, 'Refraction along the vertical meridian in different refractive groups', in Investigative Ophthalmology & Visual Science, Association for Research in Vision and Ophthalmology, presented at The Association for Research in Vision and Ophthalmology
Kang PH; gifford P; swarbrick H, 2013, 'Peripheral refraction and corneal topography changes with different orthokeratology lens designs', Asilomar, presented at 14th International Myopia Conference (IMC), Asilomar, 19 August 2013 - 22 August 2013
Kang PH; Gifford P; Swarbrick H, 2013, 'Peripheral refraction and corneal topography changes with different OK lens designs', in Optometry and Vision Science, Lippincott, Williams & Wilkins, presented at American Academy of Optometry Annual Meeting
Kang PH; Gifford P; Swarbrick H, 2012, 'Can manipulation of OK lens parameters change the peripheral refraction profile?', in Optometry and Vision Science, Lippincott, Williams & Wilkins, presented at American Academy of Optometry Annual Meeting
Maseedupally VK; Gifford P; Swarbrick , 2011, 'Hemi-meridional differences in corneal topography in relation to ethnicity and eyelid morphometry', Fort Lauderdale, Florida, Vol. 52, presented at The Annual meeting of ARVO, Fort Lauderdale, Florida, 01 May 2011 - 05 May 2011
Maseedupally VK; Gifford P; Lum E; Swarbrick H, 2009, 'Sectorial corneal curvature changes during myopic orthokeratology', Fort Lauderdale, Florida, presented at The ARVO meeting, Fort Lauderdale, Florida, 01 May 2009 - 05 May 2009
Gifford K; Gifford P, 2024, 'Eye care practitioner self-identified confidence and barriers in myopia management from 2019 to 2023', in Investigative Ophthalmology and Visual Science, The Association for Research in Vision and Ophthalmology, WA, Seattle, Vol. 65, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), WA, Seattle, 05 May 2024 - 09 May 2024, https://iovs.arvojournals.org/article.aspx?articleid=2794247
Maseedupally VK; Kang P; Bae M; Liem M; Gifford P; Swarbrick HA, 2015, 'Corneal refractive power changes during orthokeratology using different contact lens designs', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC, CO, Denver, Vol. 56, presented at Annual Meeting of the Association-for-Research-in-Vision-and-Ophthalmology (ARVO), CO, Denver, 03 May 2015 - 07 May 2015, https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000362891107158&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=891bb5ab6ba270e68a29b250adbe88d1