Select Publications

Book Chapters

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

Journal articles

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

Conference Papers

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

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

Conference Posters

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

Conference Abstracts

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


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