Contact Lens Spectrum


December 2013

Document #217

(p. 12) Letters to the Editor – Dr. Thakrar's Response
By Vishakha Thakrar, OD, FAAO

  1. Filippello M, Stagni E, O'Brart D. Transepithelial corneal collagen crosslinking: bilateral study.J. Cataract Refract Surg. 2012 Feb 38(2):283-291.
  2. Stojanovic A, Chen X, Jin N, Zhang T, Stojanovic F, Raeder S, Utheim TP. Safety and efficacy of epithelium-on corneal cross-linking using a multifactorial approach to achieve proper stromal riboflavin saturation. J Ophthalmol. 2012. 2012:498435. doi: 10.1155/2012/498435.
  3. Magli A, Forte R, Tortori A, Capasso L, Marsico G, Piozzi E. Epithelium-off corneal collagen cross-linking versus transepithelial cross-linking for pediatric keratoconus. Cornea. 2013 May;32(5): 597-601.

(p. 13) Research Review – Corneal Neovascularization in Contact Lens Practice
By Loretta B. Szczotka-Flynn, OD, PhD, MS, FAAO

  1. Koenig Y, Bock F, Horn F, Kruse F, Straub K, Cursiefen C.Short- and long-term safety profile and efficacy of topical bevacizumab (Avastin) eye drops against corneal neovascularization. Graefes Arch Clin Exp Ophthalmol. 2009 Oct;247(10):1375-82..
  2. Stevenson W, Cheng SF, Dastjerdi MH, Ferrari G, Dana R. Corneal neovascularization and the utility of topical VEGF inhibition: ranibizumab (Lucentis) vs bevacizumab (Avastin). Ocul Surf. 2012 Apr;10(2):67-83.
  3. Türkcü FM, Cinar Y, Türkcü G, Sahin A, Cingü AK, Yüksel H, Sahin M, Yildirim A, Caça I.Topical and subconjunctival ranibizumab (lucentis) for corneal neovascularization in experimental rat model. Cutan Ocul Toxicol. 2013 Jul 17. [Epub ahead of print]
  4. Öner V, Küçükerdönmez C, Akova YA, Çolak A, Karalezli A. Topical and subconjunctival bevacizumab for corneal neovascularization in an experimental rat model. Ophthalmic Res. 2012;48(3):118-23.
  5. Dana, Schaumberg et al. Corneal Neovasculariation after penetrating keratoplasty. Cornea. 1995; 14: 604-9.
  6. Bachman, Taylor, Cursiefen. Corneal neovascularization as a risk factor for graft failure and rejection after keratoplasty: an evidence-based meta-analysis. Ophthalmology. 2010. 117:1300-5.
  7. Dana. Angiogenesis and lymphangiogenesis-implications for corneal immunity. Semin Ophthalmol. 2006. 21:19-22.

(p. 18) GP Insights – Managing Corneal Graft Astigmatism and Irregularity
By Gregory W. DeNaeyer, OD, FAAO

  1. National Eye Institute accessed September 30, 2013.
  2. Oruçoglu F, Blumenthal EZ, Frucht-Pery J, Solomon A. Risk Factors and Incidence of Ocular Hypertension After Penetrating Keratoplasty. J Glaucoma. 2013 Feb 19. [Epub ahead of print]

(p. 19) Contact Lens Design & Materials – Continuous Improvement Principles in a Soft Multifocal
By Neil Pence, OD, FAAO

  1. Vogt A, Bateman K, Green T, Reindel B. Using power profiles to evaluate aspheric lenses. Contact Lens Spectrum, January, 2011.
  2. Hovinga K, Ludington P. Consistency of power profiles in multifocal contact lenses. Poster at Global Specialty Lens Symposium, Las Vegas, NV, January, 2013.
  3. Vogt A, Hovinga K. Consistency of multifocal contact lens designs. Poster at American Academy of Optometry Annual Meeting, Seattle, WA, October, 2013.

(p. 20) Dry Eye Dx and Tx – The Impact of Demodex on Eyelashes and Their Follicles
By Katherine M. Mastrota, MS, OD, FAAO

  1. Clifford CW, Fulk GW. Association of diabetes, lash loss and Staphylococcus aureus with infestation of eyelids by Demodex folliculorum (Acari: Demodicidae). J Med Entomol 1990;27:467-70.
  2. Thibaut S., DeBecker E., Caisey L., Baras D., Karatas S., Jammayrac O., Pisella P.J., Bernard B.A. Human eyelash characterization. Br J Dermatol. 2010 Feb 1;162(2):304-10.
  3. Czepita D, Kuzna-Grygiel W, Czepita M, Grobelny A. Demodex folliculorum and Demodex brevis as a cause of chronic marginal blepharitis. Ann Acad Med Stetin 2007;53:63-7.

(p. 21) Contact Lens Care & Compliance – Saline Is Not So Simple
By Michael A. Ward, MMSc, FAAO

  1. CLAO J. 1999 Jul;25(3):167-75. Incidence of contamination of preserved saline solutions during normal use. Sweeney DF, Willcox MD, Sansey N, Leitch C, Harmis N, Wong R, Holden BA.
  2. Sweeney, D.F. et al, "Contamination of 500ml bottles of unpreserved saline", Clinical and Experimental Optometry, 75.2 (3): 67-75, (1992) in: Docherty, M., "Eye Contact" Aust. J. Pharm., 73 (Oct): 788-790, (1992).
  3. Ward MA. Understanding contact lens preservatives. Eye Witness, Vol. 7, No. 4, October 1997.
  4. Ward, MA. Soft Contact Lens Care Products. CL Spectrum Jul 2003;18(7)

(p. 22) A Toric GP Primer
By Annie Chang, OD, FAAO, & Dawn Lam, BSc, MSc, OD, FAAO

  1. Nichols J. Contact lenses 2012 : The contact lens field was healthy in 2012, with notable growth in certain lens categories and modalities. Contact Lens Spectrum. 2013;28(1):24-29.
  2. Blackmore K, Bachand N, Bennett ES, Henry VA. Gas permeable toric use and applications: Survey of Section on Cornea and Contact Lens Diplomates of the American Academy of Optometry. Optometry. 2006;77(1):17-22.
  3. Snyder C. A review and discussion of crossed cylinder effects and over-refractions with toric soft contact lenses. International Contact Lens Clinic (New York, N.Y.). 1989;16:113-117.
  4. Pitts K, Pack L, Edmondson W, Pack CE. Putting a bitoric RGP lens fitting guide to the test. Contact Lens Spectrum. 2001;16(10):34-40.
  5. Mandell RB, Moore CF. A bitoric lens guide that really is simple. Contact Lens Spectrum. 1988;3(11):83-85.

(p. 30) Optimizing Lens Wear in Cases of Pre-Existing Ocular Conditions
By John M. Laurent, OD, PhD, & Yin Li, OD, FAAO Eyelids / Adnexa
Ferreira IS, Bernardes TF, Bonfioli AA. Trichiasis. Semin Ophthalmol 2010;25(3):66-71.
Kirkwood BJ, Kirkwood RA. Trichiasis: characteristics and management options. Insight 2011:36(2):5-9.
Weissman BA, Mondino BJ. Risk factors for contact lens associated microbial keratitis. Cornea 2008;27(5):539-44.
McCann LC, Tomlinson A, Pearce EI, Diaper C. Tear and meibomian gland function in blepharitis and normals. Eye Contact Lens 2009;35(4):203-8.
Adams, AJ, ed. Dry Eye: Clinical and Research Challenges. Dedicated issue, Optometry & Vision Science 2008;85(8).
Sweeney DF, Millar TJ, Raju SR. Tear film stability: A review. Exp Eye Res 2013;Aug 22. [Epub ahead of print]
Donshik PC, Porazinski AD. Giant papillary conjunctivitis in frequent-replacement contact lens wearers: a retrospective study. Trans Am Ophthalmol Soc 1999;97:205-16; discussion 216-20.
Riley C. One-Day Lenses – Past, Present, and Future. Contact Lens Spectrum 2010;25(8).
Karpecki P. Contact Lens Wear and Ocular Allergy. Contact Lens Spectrum 2012;27(3):26-32.
Epstein G, Putterman AM. Acquired blepharoptosis secondary to contact-lens wear. Am J Ophthalmol 1981;91(5):634-9.
Fonn D, Holden BA. Extended wear of hard gas permeable contact lenses can induce ptosis. CLAO J 1986;12(2):93-4.
Thean JH, McNab AA. Blepharotosis in RGP and PMMA hard contact lens wearers. Clin Exp Optom 2004;87(1):11-4.
Pullum KW. Scleral Lenses. Clinical Contact Lens Practice, Ed, Bennett, ES and Weissman BA. Philadelphia:Lippincott Williams & Wilkins, 2005;Chap 33:645-646.
Howitt DA, Goldstein JH. Physiologic lagophthalmos. Am J Ophthalmol 1969;68(2):355.
Silbert JA, ed. Anterior Segment Complications of Contact Lens Wear. Boston: Butterworth-Heinemann, 2000: xvii.
Watson S, Tullo AB, Carley F. Treatment of superior limbic keratoconjunctivitis with a unilateral bandage contact lens. Br J Ophthalmol 2002;86(4):485–486.
Thompson, TT, ed. Tyler's Quarterly Soft Contact Lens Guide. 2013;30(3):5.
Mimura T, et al. Pinguecula and contact lenses. Eye. 2010;24:1685-1691.
Maheshwari S. Pterygium-induced corneal refractive changes. Indian J Ophthalmol. 2007;55(5):383-386.
Crystalline Lens
Newman JM. Analysis, Interpretation, and Prescription for the Ametropias and Heterophorias. Borish's Clinical Refraction, Ed, Benjamin WJ. St. Louis:Butterworth-Heinemann, 2007;Chap 22:980-981.
Benjamin WJ. Applied Optics of Contact Lens Correction. Borish's Clinical Refraction, Ed, Benjamin WJ. St. Louis, Butterworth-Heinemann, 2007;Chap 26:1237-1240.
Lin AA, Buckley EG. Update on pediatric cataract surgery and intraocular lens implantation.
Curr Opin Ophthalmol 2010;21(1):55-59.
Plager DA, Lynn MJ, Buckley EG, Wilson ME, Lambert SR. Complications, adverse events, and additional intraocular surgery 1 year after cataract surgery in the infant Aphakia Treatment Study. Ophthalmology 2011;118(12):2330-4.
Korynta J, Bok J, Cendelin J, Michalova K. Computer modeling of visual impairment caused by intraocular lens misalignment. J Cataract Refract Surg 1999;25(1):100-105.
Collins RS, McChesney ME, McCler CA, Schatz MP. Occlusion properties of prosthetic contact lenses for the treatment of amblyopia. J AAPOS. 2008;12:565-568.
Anderson, JE, Brown SM, Mathews, TA, Mathews, SM. Opaque contact lens treatment for older children with amblyopia. Eye Contact Lens. 2006;32(2):84-87.

(p. 38) Contact Lens Options for Managing Keratoconus and Keratectasias
By S. Barry Eiden, OD, FAAO; Clark Chang, OD, MS, FAAO; Robert Davis, OD, FAAO; & Shana Brafman, OD

  1. Gordon-Shaag A, Millodot M, Shneor E, International Journal of Keratoconus and Ectatic Corneal Disease, Jan-April, 2012, (1) 7-15.
  2. Rabinowitz YS. Keratoconus. Surv Ophthalmol. 1998 Jan-Feb;42(4):297-319. Review.
  3. Keratoconus: Information for Eyecare Practitioners. American Academy of Optometry, Section on Cornea and Contact Lenses. April 2008.
  4. Rathi VM, Mandathara PS, Dumpati S. Contact lens in keratoconus. Indian J Ophthalmol. 2013 Aug;61(8):410-5
  5. Caroline P and Andre M. Soft Lenses for Keratoconus. Contact Lens Spectrum. 2008 March:56.
  6. Zadnik K, Barr JT, Steger-May K, Edrington TB, McMahon TT, Gordon MO; Collaborative Longitudinal Evaluation of Keratoconus (CLEK) Study Group. Comparison of flat and steep rigid contact lens fitting methods in keratoconus. Optom Vis Sci. 2005 Dec;82(12):1014-21.
  7. Gordon MO, Steger-May K, Szczotka-Flynn L, Riley C, Joslin CE, Weissman BA, Fink BA,
  8. Edrington TB, Olafsson HE, Zadnik K; Clek Study Group. Baseline factors predictive of incident penetrating keratoplasty in keratoconus. Am J Ophthalmol. 2006 Dec;142(6):923-30.
  9. Michaud L, Brazeau D, Corbeil ME, Forcier P, Bernard PJ. Contribution of soft lenses of various powers to the optics of a piggy-back system on regular corneas. Cont Lens Anterior Eye. 2013 Dec;36(6):318-23
  10. Abdalla YF, Elsahn AF, Hammersmith KM, Cohen EJ. SynergEyes lenses for keratoconus.Cornea. 2010 Jan;29(1):5-8.
  11. Downie LE. Predictive value of corneal topography for ClearKone hybrid contact lenses. Optom Vis Sci. 2013 Jul;90(7):e191-7.
  12. 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(6):266-71.

(p. 49) Treatment Plan – Allaying Patient Concerns Over Subconjunctival Hemorrhages
By Leo Semes, OD, FAAO

  1. Tarlan B, Kiratli H. Subconjunctival hemorrhage: risk factors
  2. and potential indicators. Clin OPhthalmol 2013:7 1163–1170.
  3. Pasquali TA, Aufderheide A, Brinton JP, et al. Dilute brimonidine to improve patient comfort and subconjunctival hemorrhage after LASIK. J Refract Surg. 2013 29 (7): 469-75. (doi: 10.3928/1081597X-20130617 05. (accessed 9/18/2013).

(p. 50) Reader and Industry Forum – Hand Washing: A Slippery Slope
By Samantha Kronish & Etty Bitton, OD, MSc, FAAO, FBCLA

  1. Dumbleton K, Richter D, Woods C, Jones L, Fonn D. Compliance with contact lens replacement in Canada and the United States. Optom Vis Sci 2010;87(2):131-9.
  2. Wu Y, Carnt N, Stapleton F. Contact lens user profile, attitudes and level of compliance to lens care. Cont Lens Anterior Eye 2010;33:183-8.
  3. Hickson-Curran S, Chalmers RL, Riley C. Patient attitudes and behaviour regarding hygiene and replacement of soft contact lenses and storage cases. Cont Lens Anterior Eye 2011;34:207-15.
  4. Wu YT, Zhu H, Harmis NY, et al. Profile and frequency of microbial contamination of contact lens cases. Optom Vis Sci 2010;87(3):E152-8.
  5. McMonnies CW. Hand hygiene prior to contact leans handling is problematical. CL & Ant Eye 2012;35:65-70.
  6. Dumbleton K, Richter D, Bergenske P, Jones LW. Compliance with lens replacement and the interval between eye examinations. Optom Vis Sci. 2013 Apr;90(4):351-8.
  7. Boyce JM, Pittet D. Guideline for hand hygiene in health-care settings. Recommendations of the Healthcare Infection Control Practices Advisory Committee and the HICPAC/SHEA/APIC/IDSA Hand Hygiene Task Force. MMWR Morb Mortal Wkly Rep 2002; 51: 1-45
  8. Khan MH, Mubeen SM, Chaudhry TA, Khan SA. Contact lens use and its compliance for care among healthcare workers in Pakistan. Indian J Ophtalmol. 2013 May 17
  9. Morgan PB, Efron N, Toshida H, Nicols JJ. An international analysis of contact lens compliance. CL & Ant Eye 2011;34:223-8
  10. McMonnies CW. How to lose patients without even trying. CL Spectrum 2013;28(5):38-40.
  11. Hickson-Curran, S. Compliance before, during and after contact lens wear. CL Spectrum 2012;27:38-43
  12. Eisenberg JS. Studies finger dirty hands in non-compliance. Optometry Times 2012;4(3):1
  13. Center for Disease Control. Accessed on July 23, 2013
  15. World Health Organization (WHO). How to Hand Wash Poster. ( Accessed on July 23, 2013
  17. Campbell D, Mann A, Hunt O, Santos LJR. The significance of hand wash compliance on the transfer of dermal lipids in contact lens wear. CL & Ant Eye 2012;35:71-6
  18. Royal College of Nursing (RCN). HandwashingTechnique.pdf
  19. Srinivasan, S. et al. The impact of cosmetics on the surface apearance and wettability of silicone hydrogel contact lenses. Optom Vis Sci 2012 ;89 : E-abstract 120317
  20. Shakir S. End of the day contact lens discomfort may have a chemical cause. Primary Care Optometry News. July 2012
  21. Bitton E, Kronish S. The impact of hand washing time and soap on the surface of Silicone hydrogel contact lenses: a pilot study. 2013. Presented at the British Contact Lens Association (BCLA) annual meeting

End Document #217