By Dr Paul Gifford

Book Chapters

Gifford P, 2024, 'Chapter 30 Orthokeratology', in Contact Lens Practice, Elsevier, pp. 322 - 332.e2, http://dx.doi.org/10.1016/b978-0-7020-8427-0.00030-1

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

Gifford P, 2018, '32 Orthokeratology', in Contact Lens Practice, Elsevier, pp. 296 - 305.e2, http://dx.doi.org/10.1016/b978-0-7020-6660-3.00032-0

Journal articles

Gifford P; Saw J; Gifford K, 2025, 'Questioning the evidence: baseline refraction and orthokeratology efficacy', Contact Lens and Anterior Eye, 48, pp. 102555, http://dx.doi.org/10.1016/j.clae.2025.102555

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, 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 LC; 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 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 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; Alharbi A; Swarbrick HA, 2011, 'Corneal thickness changes in hyperopic orthokeratology measured by optical pachometry', Investigative Ophthalmology and Visual Science, 52, pp. 3648 - 3653, http://dx.doi.org/10.1167/iovs.10-6323

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

Kang P; Gifford P; McNamara P; Wu J; Yeo S; Vong B; Swarbrick H, 2010, 'Peripheral refraction in different ethnicities', Investigative Ophthalmology and Visual Science, 51, pp. 6059 - 6065, http://dx.doi.org/10.1167/iovs.09-4747

Gifford P; Swarbrick HA, 2009, 'The effect of treatment zone diameter in hyperopic orthokeratology', Ophthalmic and Physiological Optics, 29, pp. 584 - 592, http://dx.doi.org/10.1111/j.1475-1313.2009.00672.x

Gifford P, 2009, 'PAUL VALERY', TLS-THE TIMES LITERARY SUPPLEMENT, pp. 7 - 8

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. e306 - e311, http://dx.doi.org/10.1097/OPX.0b013e3181989266

Gifford P, 2009, 'La Mise en œuvre: Itinéraires génétiques', French Studies, 63, pp. 373 - 373, http://dx.doi.org/10.1093/fs/knp069

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, http://dx.doi.org/10.1097/OPX.0b013e31818e8d13

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; Gifford K, 2025, 'Time spent on near work, not outdoortime, correlates with myopia in a large international survey', in INVESTIGATIVE OPHTHALMOLOGY & VISUAL SCIENCE, ASSOC RESEARCH VISION OPHTHALMOLOGY INC

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, 21 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

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

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