Contact Lens Spectrum

June 2008

Document #151




(p. 15) Prescribing for Astigmatism: Tips for Soft Toric Lens Fits, By Julie A. Schornack, OD, MEd


Snyder, Christopher.  A review and discussion of crossed sylinder effects and over refractions with toric soft contact lenses.

          International Contact Lens Clinic, Volume 16, Issue 4, April 1989,

          Pages 113-116



(p. 19) Contact Lens Materials: Oxygen Permeability and Transmissibility, Part 3, By William J. Benjamin, OD, MS, PhD


1. Benjamin WJ. EOP and Dk/L: the quest for hyper transmissibility. J Am Opt Assoc 1993;64(3):196-200.


2. Benjamin WJ: Oxygen transport through contact lenses. Ruben M, Guillon M Contact Lens Practice. London, Chapman and Hall Medical, London, 1994, pp. 43-70.



(p. 21) Dry Eye Dx and Tx: An Often Overlooked Source of Lens-Related Dryness, by Ann Laurenzi, OD, FAAO


Marren,S.  Contact Lens Wear, Use of Eye Cosmetics, and Meibomian Gland Dysfunction.  Optometry and Vision Science 1994; Vol. 71, No. 1 pp. 60-62.


Lemp MA, Foulks GN.  Dry Eye: Slit Lamp Examination.  Refractive EyeCare.October 2007; pp 24.


Paugh JR. Knapp LL, Martinson JR. Hom MM;  Meibomian Therapy in Problematic Contact Lens Wear.  Optometry and Vision Science 1990; Vol 67,  No. 11, pp. 803-806.


Devries D, Foulks GN.  Treating Dry Eye In Clinical Practice:  A new understanding of dry eye.  Review of Opt. 2007;  Sept 15 pp83-88.


Lemp MA, Foulks GN.  Dry Eye: Meibomian Glands I:  Role in Dry Eye Disease.  Refractive EyeCare.March 2008; pp 26.


Donnenfeld ED, Mah FS, McDonald MB, O’Brien TP, Solomon KD.  New Considerations in the Treatment of Anterior and Posterior Blepharitis.  A Continuing Medical Education Supplement to Refractive EyeCare Vol. 12, Num 4, April 2008.


Lindstrom RL, Holland EJ, Solomon KD, Hardten DR. Improving Cataract and Refactive Surgery Outcomes through Ocular Surface Optimization.  EyeWorld Educational Symposia, ASCRS Meeting, Chicago 2008.




(p. 23) Contact Lens Care: Compliance: the Little Things Can Make a Difference, By Susan J. Gromacki, OD, MS, FAAO


  1. American Academy of Ophthalmology Member Alert, May 16, 2006.
  2. Poggio EC et al.  The incidence of ulcerative keratitis among users of daily wear and extended wear soft contact lenses.  N Engl J Med 1989; 321(12):  779-783.
  3. Holden BA, Mertz GW.  Critical oxygen levels to avoid corneal edema for daily and extended wear contact lenses.  Invest Ophthalmol Vis Sci 1984; 25(10): 1161-1167.



(p. 25) Diagnosing and Treating Corneal Dystrophy, By Gregory W. DeNaeyer, OD


  1. The Cornea, Second Edition, Edited by Herbert Kaufman, MD, Bruce Barron, MD, and Marguerite McDonald, MD, Chapters 18 and 19, Butterworth-Heinemann 1998.


  1. Grayson’s Diseases of the Cornea, Third Edition, Robert C. Arffa, MD, Chapters 17 and 18, Mosby-Year Book, Inc. 1991.


  1. Primary Care of the Anterior Segment, Second Edition, Louis Catania, OD, pages 252-265, Appleton and Lange 1998.



(p. 37) The Evolution of Silicone Hydrogel Lenses, By Brian Chou, OD, FAAO



Sweeney DF, Holden BA. Silicone elastomer lens wear induces less overnight corneal edema than sleep without lens wear. Curr Eye Res. 1987;6:1391–1394.


Harris M. Correction of pediatric aphakia with silicone contact lenses. CLAO J. 1985 Oct-Dec;11(4):343-7.


Blackhurst RT. Silicone contact lenses: a personal 13-year perspective. CLAO J. 1985 Jan-Mar;11(1):57-61.


Fanti P, Holly FJ. Silicone contact lens wear III. Physiology of poor tolerance. Contact Intraocul Lens Med J. 1980;6:111-119.


Tighe B. Silicone hydrogels: Structure, properties and behaviour. In: Sweeney DF, ed. Silicone Hydrogels: Continuous-wear Contact Lenses. Oxford: Butterworth-Heinemann; 2004:1-27.


Tighe B. Trends and developments in silicone hydrogel materials. Editorial. September 2006.


Tighe B. Silicone Hydrogel materials — how do they work. In Silicone Hydrogels: The Rebirth of continuous wear contact lenses. D.F. Sweeney (Ed). pages 1-21. 2000. Butterworth Heinemann.


Nicholson PC and Vogt J. Soft contact lens polymers: an evolution. Biomaterials. 2001; 22: 3273-3283.


Tighe B. Silicone hydrogels – what are they and how should they be used in everyday practice? Optician November 5, 1999 No 5726 Vol 218.


Osborn K, Veys J. A new silicone hydrogel for contact lens-related dryness, Part 1: Material properties. Optician 2005;229:39-41.


Ross et al. Silicone Hydrogels: Trends in Products and Properties. Presented at BCLA 29th Clinical Conference & Exhibition, Brighton, UK; 3-5 June, 2005.


Ross et al. Silicone Hydrogels: Trends in Products and Properties. Presented at BCLA 29th Clinical Conference & Exhibition, Brighton, UK; 3-5 June, 2005.


Young G, Riley CM, Chalmers RL, et al. Hydrogel lens comfort in challenging environments and the effect of refitting with silicone hydrogel lenses. Optom Vis Sci 2007;84:302-308.


Stapleton F, Stretton S, Papas E, et al. Silicone hydrogel contact lenses and the ocular surface. Ocul Surf. 2006 Jan:4(1):24-43.


Schein OD, McNally JJ, Katz J, et al. The incidence of microbial keratitis among wearers of a 30-day silicone hydrogel extended-wear contact lens. Ophthalmology, 2005 Dec;112(12):2172-9.


Efron N, Morgan PB, Hill EA, et al. Incidence and morbidity of hospital-presenting corneal infiltrative events associated with contact lens wear. Clin Exp Optom. 2005 Jul;88(4):232-9.



(p. 51) Readers’ Forum: Misleading Orientation Marks on Soft Toric Contact Lenses, by Graeme Young, MPhil, PhD, FCOptom, DCLP, FAAO, & Roberta McIlraith, BOptom (Hons.)



  1. Marriott PJ.  An analysis of the global contours and haptic contact lens fitting. Brit J Physiol Opt, 23:1‑40 (1966).
  2. Lui Z, Huang AJ, Pflugfelder SC.  Evaluation of corneal thickness and topography in normal eyes using the Orbscan corneal topography system.  Br J Ophthalmol 1999; 83:774-778.
  3. Reddy T, Szczotka LB, Roberts C. Peripheral corneal contour measured by topography influences soft toric contact lens fitting success.  CLAO J 2000; 26:180-185.
  4. Young G, Hickson-Curran S.  Reassessing toric soft lens fitting. CL Spectrum 2005; 20(1):42-45.