sabar.eye-portal.ru

Dr. José Alonso

PhD in physics, 1992, University Complutense
1997: professorship at the School of Optics
1992-2005: main research field: optical metrology, optical design, light propagation, clinical optics.
2005: Startup “Indizen Optical Technologies S.L.”
2005-2013: Research on
Applied mathematics and optics for spectacle lens design
Clinical optics (clinical trials, mainly focused on PAL).

IOT’s activity.
- Core: Software to compute free-form surfaces
- Metrology and quality control tools.

IOT’s bussiness model:
- Partnership with the independent lens manufacturer
- Outsourcing of R&D
Personalized designs (to the lab)
Quality control
Clinical optics.

Machinery to generate and polish arbitrary* surfaces on plastic*
Surface digitally described.

Free-form missconceptions:
- Back-side better than front-side
- Free-form PPLs are wider
- Free-form PPLs have less astigmatism
- Free-form lenses can elliminate HOA
- …

Emmetropization.
- Bast collection of experimental data shows that the eye grows (or slow growing) according to the focusing status
- Homeostatic process tries to keep the eye in focus
- The process is complex and not fully understood
Accomodation
Response time of the control mechanism
Determination of the sign of defocus
Mechanisms that accounts for retina displacement
Neurological channels and spatial frequency response
….
(J. Wallman, J. Winawer, “Homeostasis of eye growth and the question of myopia,” Neuron, 43, 447-468, (2004)).

Myopia:
- Epidemiologically related to level of education (25% of Young people leaving university in Europe and US, 75% in industrialized asian countries)
- Genetic/heretability component
- Related to near work
- Mechanisms that failed to clearly stop myopia onset:
Undercorrection
Bifocal lenses
Standard progressive lenses.

Myopia control:
“Accumulating evidence tells us that the regulation of myopia is plausible. The next few years may bring a critical mass in understanding myopic progression. Viable treatment will require a robust dioptric effect and intervention at the first sign of childhood myopia.”
(Jerome A. Legerton, O.D., M.S., M.B.A., and Brian Chou, O.D.)
/www.revoptom.com/continuing_education/tabviewtest/lessonid

Lens design: Perifocal.

ArtOptica proposal, IOT design:
- Let’s make a lens with increased peripheral power along one meridian (horizontal)
- The meridian will have an umbilical line
- Free from astigmatism along this horizontal meridian.

Benefits:
- Clean focus along the horizontal meridian
- A large number of neurons laid in the periphery will be addressed with clean/myopic focus
- Much better image quality in the periphery, lack of astigmatism.

Perifocal design: main thesis.

- Perifocal creates conditions for balance between vertical and horizontal meridians
- Balance between nasal and temporal sides can be controlled
- Making influence on normalizing of choroid thickness
- Creating proper conditions to reduce myopia progression by biochemical cascade.