Our Services ophthalmic lenses intraocular lenses simpsonoptics - optics r&

R&D relating to the design, fabrication, and testing of plastic lenses, particularly

• Intraocular Lenses (IOLs) 
• Contact lenses
• Diffractive lenses
• Multifocal lenses 
• Toric lenses
• Extended  depth of focus lenses
• Zemax calculations

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Upcoming Meetings Aug/Sep 2023

ECVP 2023 (Eur Conf Vis Percep). Aug.  Crete.

Strasburger H, Simpson MJ. "Is Visual Angle Equal to Retinal Angle" (Simpson not there)

Visual and Physiological Optics (VPO) 2023

Antwerp, Belgium Aug 27-29:

Simpson MJ. "Intraocular Lens Tilt, the Pupil, and Simple Eye Models"

Presbyopia. Vienna. Sep. 7 2023.

ESCRS.  Vienna. Austria.  Sep. 9-11, 2023.

Hope to see you in Antwerp, Vienna, or UK. ophthalmic lenses simpsonoptics - optics r&d

Intraocular lens design

• aspheric, diffractive, multifocal, trifocal, EDF, toric, accommodating 

Lens performance characterization

• power, MTF, wavefront 

Photic phenomena

• dysphotopsia, negative dysphotopsia

 The dysphotopsia page has a short download about "Negative Dysphotopsia" and "Far Peripheral Vision", and simulations of why peripheral shadows might be "bothersome". 

ophthalmic lenses intraocular lenses simpsonoptics - optics r&d

Michael J. Simpson, Ph.D.

Dr Simpson worked in industry for over 25 years in the Research and Development of Intraocular Lenses (IOLs), and is continuing to support R&D work relating to ophthalmic lenses and other topics. 

 Simpson MJ, "Optical modeling of the entire visual field of the eye," J. Opt. Soc. Am. A 40, D7 (2023)   https://doi.org/10.1364/JOSAA.488033 

 Simpson MJ.  "Focal Length, EFL, and the Eye". Applied Optics, v62, n7, 1 Mar. 2023 p1853-1857. 

https://doi.org/10.1364/AO.481805

Simpson MJ, "Nodal points and the eye," Appl. Opt. 61, 2797-2804 (2022) https://doi.org/10.1364/AO.455464 simpsonoptics - optics r&d