Contact Lens Spectrum


April 2020

Document #293

(p. 11) Editor’s Perspective – Finding Our Way Through Uncharted Waters
By Jason J. Nichols, OD, MPH, PhD

  1. Guan WJ, Ni ZY, Hu Y, et al; China Medical Treatment Expert Group for Covid-19. Clinical Characteristics of Coronavirus Disease 2019 in China. N Engl J Med. 2020 Feb 28. [Epub ahead of print]

(p. 15) GP Insights – Turn Off the Tap
By Karen DeLoss, OD

  1. Konne NM, Collier SA, Spangler J, Cope JR. Healthy contact lens behaviors communicated by eye care providers and recalled by patients—United States, 2018. MMWR Morb Mortal Wkly Rep. 2019 Aug 16;68:693-697.
  2. Dry Eye Foundation. Water Safety Survey. 2020 Jan. 8-20. Available at . Accessed Feb. 19, 2020.

(p. 16) Custom Soft Corner – High Toricity and High Sag? Do DD Lenses Stand a Chance?
By Stephanie Ramdass, OD, MS, MBA

  1. Nichols J, Starcher L. Contact Lenses 2019. Contact Lens Spectrum. 2020 Jan;35:18,19,21-25.

(p. 17) Myopia Matters – Time to Be 20/20 About Myopia
By Kate Gifford, PhD, BAppSc(Optom)Hons

  1. Efron N, Morgan PB, Woods CA Santodomingo-Rubido J, Nichols JJ, International Contact Lens Prescribing Survey Consortium. International survey of contact lens fitting for myopia control in children. Cont Lens Anterior Eye. 2020 Feb;43:4-8.
  2. Gifford KL. Childhood and lifetime risk comparison of myopia control with contact lenses. Cont Lens Anterior Eye. 2020 Feb;43:26-32.
  3. Chamberlain P, Peixoto-de-Matos SC, Logan NS, Ngo C, Jones D, Young G, A 3-year Randomized Clinical Trial of MiSight Lenses for Myopia Control. Optom Vis Sci. 2019 Aug;96:556-567.
  4. Sankaridurg P, Bakaraju RC, Naduvilath T. Myopia control with novel central and peripheral plus contact lenses and extended depth of focus contact lenses: 2 year results from a randomised clinical trial. Ophthalmic Physiol Opt. 2019 Jul;39:294-307.
  5. Bullimore MA, Brennan NA. Myopia Control: Why Each Diopter Matters. Optom Vis Sci. 2019 Jun;96:463-465

(p.35) NO FEE-CE: When and How to Use Special Scleral Lens Design Options
By Jennifer Swingle Fogt, DO, MS

  1. Harthan J, Shorter E, Nau C, et al. Scleral lens fitting and assessment strategies. Cont Lens Anterior Eye. 2019 Feb;42:9-14.
  2. Michaud L, van der Worp E, Brazeau D, Warde R, Giasson CJ. Predicting estimates of oxygen transmissibility for scleral lenses. Cont Lens Anterior Eye. 2012 Dec;35:266-271.
  3. Nixon AD, Barr JT, VanNasdale DA. Corneal epithelial bullae after short-term wear of small diameter scleral lenses. Cont Lens Anterior Eye. 2017 Apr:40;116-126.
  4. van der Worp E. A guide to scleral lens fitting (2 ed.). 2015. Available at: .
  5. Sherman SW, Cherry C, Suh LH. Epithelial inclusion cyst of the bulbar conjunctiva secondary to scleral lens impingement managed with a microvault. Eye Contact Lens. 2019 Sep 9. [Epub ahead of print]
  6. Fadel D. The influence of limbal and scleral shape on scleral lens design. Cont Lens Anterior Eye. 2018 Feb 26. [Epub ahead of print]
  7. Iskander DR, Wachel P, Simpson PN, Consejo A, Jesus DA. Principles of operation, accuracy and precision of an eye surface profiler. Ophthalmic Physiol Opt. 2016 May;36:266-278.
  8. DeNaeyer G, Sanders DR, Farajian TS. Surface coverage with single vs. multiple gaze surface topography to fit scleral lenses. Cont Lens Anterior Eye. 2017 Jun;40:162-169.
  9. Wegener A, Laser-Junga H. Photography of the anterior eye segment according to Scheimpflug’s principle: options and limitations – a review. Clin Exp Ophthalmol. 2009 Jan;37:144-154.

(p. 46) Contact Lens Practice Pearls – Think Global, Act Local
By David L. Kading, OD

  1. Holden BA, Fricke TR, Wilson DA, et al. Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050. Ophthalmology. 2016 May;123:1036-1042.

(p. 48) The Scleral Lens Vault – Be Flexible with Residual Astigmatism in Sclerals
By Langis Michaud, OD, MSc

  1. Collins MJ, Franklin R, Carney LG, Bergiel C, Lagos P, Chebib D. Flexure of thin rigid contact lenses. Cont Lens Anterior Eye. 2001;24(2):59-64.
  2. Corzine JC, Klein SA. Factors determining rigid contact lens flexure. Optom Vis Sci. 1997 Aug;74:639-645.
  3. Phillips AJ, Stone J. Contact Lenses, Third ed. London, UK: Butterworths; 1989.
  4. Sorbara L, Fonn D, MacNeill K. Effect of rigid gas permeable lens flexure on vision. Optom Vis Sci. 1992 Dec;69:953-958.
  5. Holden BA, Siddle JA, Robson G, Zantos SG. The clinical significance of the lens flexure effect. Aust J Optom. 1976 April;29:117-129.
  6. British Standards Institution. New British Standard. Contact Lens Ant Eye. 2000;23:62.
  7. Choi J, Wee WR, Lee JH, Kim MK. Changes of ocular higher order aberration in on- and off-eye of rigid gas permeable contact lenses. Optom Vis Sci. 2007 Jan;84:42-51.
  8. Chen M, Yoon G. Posterior corneal aberrations and their compensation effects on anterior corneal aberrations in keratoconic eyes. Invest Ophthalmol Vis Sci. 2008 Dec;49:5645-5652.
  9. Hashemi H, Beiranvand A, Yekta A, Maleki A, Yazdani N, Khabazkhoob M. Pentacam top indices for diagnosing subclinical and definite keratoconus. J Curr Ophthalmol. 2016 Mar 29;28:21-26.
  10. Sabesan R, Johns L, Tomashevskaya O, Jacobs DS, Rosenthal P, Yoon G. Wavefront-guided scleral lens prosthetic device for keratoconus. Optom Vis Sci. 2013 Apr;90:314-323.
  11. Barnett M, Fadel D. Scleral Lenses: The Benefits of Toric Landing Zones. Contact Lens Spectrum. 2017 Nov;32:36-41.
  12. Hastings GD, Applegate RA, Nguyen LC, Kauffman MJ, Hemmati RT, Marsack JD. Comparison of Wavefront-guided and Best Conventional Scleral Lenses after Habituation in Eyes with Corneal Ectasia. Optom Vis Sci. 2019 Apr;96:238-247.

(p. 49) Pediatric and Teen CL Care – Myopia Management for Astigmatic Children
By Melanie Frogozo, OD

  1. Grossniklaus HE, Green WR. Pathologic findings in pathologic myopia. Retina 1992;12(2):127-133.
  2. Saw SM, Gazzard G, Shih-Yen EC, Chua WH. Myopia and associated pathological complications. Ophthalmic Physiol Opt. 2005 Sep;25:381-391.
  3. Walline JJ. Myopia Control: A Review. Eye Contact Lens 2016 Jan;42:3-8.
  4. Charman WN, Mountford J, Atchison DA, Markwell EL. Peripheral refraction in orthokeratology patients. Optom Vis Sci. 2006 Sep;83:641-648.
  5. Smith EL 3rd, Hung LF, Huang J, Arumugam B. Effects of local myopic defocus on refractive development in monkeys. Optom Vis Sci. 2013 Nov;90:1176-1186.
  6. Mountford J, Ruston D, Dave T. (2004). Orthokeratology: Principles and Practice. London, Butterwoth Heinemann.
  7. Chan B, Cho P, de Vecht A. Toric orthokeratology: a case report. Clin Exp Optom. 2009 Jul;92:387-391.
  8. Korszen E, Caroline P. The Anatomy of a Modern Orthokeratology Lens. Contact Lens Spectrum. 2017 Mar;32:30-32, 34-35, 40.
  9. Kojima R, Caroline P, Morrison S, Kinoshita B, Andre M, Lampa M. Should all orthokeratology lenses be toric. Presented at the Global Specialty Lens Symposium, Las Vegas, January 2016.
  10. Liu M. Myopia Control Clinic at UC Berkeley Eye Center. Presented at the Vision By Design 2017 Annual Meeting. The American Academy of Orhtokeratology and Myopia Control. Dallas, April 2017.

(p. 50) The Business of Contact Lenses – What the Future Holds
By Clarke D. Newman, OD

  1. Chokkattu J. The Display of the Future Might Be in Your Contact Lens. Wired. 2020 Jan 16. Available at . Accessed Feb. 18, 2020.
  2. Harrison L. Biosensors in contact lenses can monitor IOP and diabetes. 2016 Oct. 5. Available at . Accessed Feb. 18, 2020.
  3. Nichols JJ, Wilcox MDP, Bron AJ, et al. The TFOS International Workshop on Contact Lens Discomfort: Executive Summary. Invest Ophthalmoml Vis Sci. 2013 Sept;54:TFOS7-TFOS13. Available at . Accessed Feb. 18, 2020.
  4. Holden BA, Fricke TR, Wilson DA, et al. Global Prevalence of Myopia and High Myopia and Temporal Trends from 2000 through 2050. Opthamology. 2016 May;123:1036-1042. Available at . Accessed on Feb. 18, 2020.
  5. World Health Organization. The Impact of Myopia and High Myopia. 2015 March 16-18. Available at . Accessed on Feb. 18, 2020.

(p. 52) History of Contact Lenses – Almost Lost to History: The Birth of the Corneal Lens
By Patrick J. Caroline & Craig W. Norman

  1. Pearson RM. Kalt, keratoconus, and the contact lens. Optom Vis Sci. 1989 Sep;66:643-646.
  2. Haas E. Les verres de contact. Bulletin de la Société d’Ophthalmologie de Paris. Thiron, 1938.
  3. Robert F. Heitz MD, PhD., The History of Contact Lenses Volume Two Keratoconus and the Use of Early Contact Lenses (1888-1920).G. Schmidt Van Iseghem Laan 18/27 B- 8400 Oostende Belgium 2005.
  4. Robert F. Heitz MD PhD., History of Contact Lenses, Contact Lenses, Grune & Stratton 1984.