Recent Publications

  1. Simpson MJ. Simulated Images of Intraocular Lens Negative Dysphotopsia and Visual Phenomena.  J. Opt. Soc. Am. A 36, B44-B51 (2019) 
  2. Simpson MJ, Bandhauer MH. Influence of the IOL Haptic Junction on Illumination of the Peripheral Retina and Negative Dysphotopsia. J Cat Refr Surg 2019: 45:1335–1339.
    Click here for free link until Oct 16 2019.
  3. Erie JC, Simpson MJ, Bandhauer MH. A modified intraocular lens design to reduce negative dysphotopsia. J Cataract Refract Surg. 2019; 45:1013–1019 (2019)
  4. Erie JC, Simpson MJ, Bandhauer MH. Effect of a sulcus-fixated piggyback IOL on negative dysphotopsia: A ray-trace analysis. J Cataract Refract Surg  45:443–450  (2018)  
  5. Simpson MJ, Muzyka-Wozniak M. Iris Characteristics Affecting Far Peripheral Vision and Negative Dysphotopsia. J Cataract Refract Surg 2018; 44:459–465.
  6. Simpson MJ. Mini-review: Far Peripheral Vision. Vision Research 140C (2017) 96-105 
  7. Holladay JT, Simpson MJ, "Negative dysphotopsia: Causes and rationale for prevention and treatment".  J. Cataract Refract. Surg. 2017; 43:263-275. 
  8. M.J. Simpson, “Vignetting and negative dysphotopsia with intraocular lenses in “far peripheral vision””,  J. Opt. Soc. Am. A (2015). 
  9. M. J. Simpson, “Managing and understanding negative dysphotopsia (Letter)”  
  10. M. J. Simpson, “Double image in far-peripheral vision of pseudophakic eye as source of negative dysphotopsia,” J. Opt. Soc. Am. A. 31, 2642-2649 (2014). publications


  1. Simpson MJ.  Image detail and Negative Dysphotopsia with Intraocular Lens Far Peripheral Vision.  Poster. ARVO 2019, Vancouver, Canada (April 30) 
  2. Simpson MJ. Modelling IOL negative dysphotopsia and visual phenomena. Visual and Physiological Optics Meeting (VPO) Athens, Greece, 2018. 
  3. Simpson MJ, Muzyka-Wozniak M. Effect of pupil diameter on both negative dysphotopsia and peripheral vision with IOLs.  ESCRS, Lisbon, Portugal, Oct. 2017. 
  4. Simpson MJ, Muzyka-Wozniak M. Iris characteristics affecting far peripheral vision and negative dysphotopsia. Wed. May 10, 8:30-10:15, Baltimore, MD. (2017)
  5. Simpson MJ. Parameters Affecting both Far Peripheral Vision in Phakic Eyes and Negative Dysphotopsia with Intraocular Lenses. ARVO, Seattle, WA, May 2016.
  6. Simpson MJ. Theoretical Evaluation of  Far Peripheral Vision and Negative Dysphotopsia for the Pseudophakic Eye. ASCRS New Orleans. May 2016. 
  7.  Simpson MJ. Modern intraocular lens design principles, Wavefront Congress, San Francisco, Mar. 4-5 2016.
  8. Simpson MJ. Parameters affecting Vignetting and negative dysphotopsia in the far peripheral visual field of the pseudophakic eye. ARVO. Denver, May 2015.

Meetings in 2019

"Lens Capsule Effects on Negative Dysphotopsia, Visual Phenomena and Refractive Error",  at Presbyopia 2019, Friday Sept. 13, Paris, France. 

"Ray tracing of negative dysphotopsias" during Symposium on Negative Dysphotopsia, at ESCRS,         Saturday Sept. 14,  2019, Paris, France. .  

Patents and Other Publications

Patents and other publications can be found online. Feel free to email with questions.