Oren Yehezkel

Oren Yehezkel, MSc
Oren is a PhD student in the Clinical Neuroscience Lab and an Optometrist in the Ophthalmology Department and The Safra Children’s Hospital, the C. Sheba Medical Center. Oren investigates the neuronal substrates of binocular integration and developmental astigmatism in the human brain, both in central and peripheral vision. He is also interested in the mechanisms of perceptual learning and adaptation to induced optical distortions. In his experiments, Oren combines Visual Evoked Potentials (VEP) and Event-Related Potentials (ERP) recording with dichoptic stimulation and behavioral measurements. Oren is also leading the project for infant visual acuity diagnostics using VEP, in collaboration with the Ophthalmology Department.

Publications
Yehezkel, O., Sagi, D., Sterkin, A., Belkin, M., & Polat, U. (2010) Learning to adapt: Dynamics of readaptation to geometrical distortions. Vision Research, 50 (16), 1550-1558.
Cohen, Y. Belkin, M, Yehezkel, O., Solomon, A. Polat, U. (2011). Dependency between light intensity and refractive development under light-dark cycles. Exp Eye Res 92(1): 40-46.
Zalevsky, Z., Ben Yaish, S,.Zlotnik, A,.Yehezkel, O,.Belkin, M,.United Cortical adaptation and visual enhancement. States Optics letters Opt Lett. 2010 Sep 15;35(18):3066-8. doi: 10.1364/OL.35.003066
Ben Yaish S, Zlotnik A, Raveh I, Yehezkel O, Belkin M, Zalevsky Z. Intraocular omni-focal lens with increased tolerance to decentration and astigmatism. J Refract Surg. 2010 Jan;26(1):71-6.
Zlotnik A, Ben Yaish S, Yehezkel O, Lahav-Yacouel K, Belkin M, Zalevsky Z. Extended depth of focus contact lenses for presbyopia. Opt Lett. 2009 Jul 15;34(14):2219-21
Sterkin, A., Yehezkel, O., Bonneh, Y., Norcia, A.M. Polat, U. Backward masking suppresses collinear facilitation in the visual cortex Vision Research (2009), 49 (14) 1784-1794.
Z. Zalevsky, S. Ben Yaish, A. Zlotnik, I. Raveh, O. Yehezkel, K. Lahav-Yacuel and M. Belkin, “Omni-focal refractive correction lens-A new solution for presbyopia,” Cataract and Ref. Surgery Today Europe, 52-54 (Jan. 2009)
Cohen Y, Belkin M, Yehezkel O, Avni I, Polat U. Light intensity modulates corneal power and refraction in the chick eye exposed to continuous light. Vision Res. 2008 Sep;48(21):2329-35.
Sterkin, A., Yehezkel, O., Bonneh, Y., Norcia, A., and Polat, U. Multi-component correlate for lateral collinear interaction in the human visual cortex as revealed by visual evoked potentials. Vision Research Vision Research (2008) 48 (15), 1641-1647.
A. Zlotnik, S. Ben Yaish, O. Yehezkel, M. Belkin, and Z. Zalevsky, Thin films as spectacles and contact lenses for aberration-corrected vision via brain adaptation to contrast, Journal of Vision, 8(6), 263 (2008).
Polat, U., Sterkin, A., Yehezkel, O. Spatio-temporal low-level neural networks account for visual masking. Advances in Cognitive Psychology, 2007. Vol 3 issue 1-2, pages 153-165.
Z. Zalevsky, S. Ben Yaish, O. Yehezkel and M. Belkin, Thin spectacles for myopia, presbyopia and astigmatism insensitive vision, Opt. Express 15, 10790-10803 (2007).
Mandel, Y., Polat, U., Bar, A., Yehezkel, O., Rosner, M. and Belkin, M. (2005) Measurement of dark adapted foveal contrast sensitivity: effect of age, Ophthalmic Technologies XV: Biomedical Optical Society, Vol. 6, No. 3.

Awards
2006          PhD scholarship, The Ruth Rali Foundation,Tel-AvivUniversity.
2007          The Moshe Lahav Foundation prize for excellence in ophthalmology,Tel-Aviv University
2007          Fellowship award, Joseph Sagol Foundation for Brain Research, Tel-Aviv University
2008          Fellowship award, Joseph Sagol Foundation for Brain Research, Tel-Aviv University
2008          Maratie foundation travel award, for presenting the work at the VSS conference
2009          Fellowship award, Joseph Sagol Foundation for Brain Research, Tel-Aviv University
2010          Fellowship award, Joseph Sagol Foundation for Brain Research, Tel-Aviv University
2010          Maratie foundation travel award, for presenting the work at the VSS conference

Conference Papers and Posters
1. Yehezkel O., Belkin M., Sagi D., and Polat U., Learning to adapt: adaptation of the visual system to monocular optical-distortions. Neural Plasticity,12 (1) p 65 (13th Annual meeting of ISFN) (2004).
2. Polat U., Yehezkel O., Amiaz R., and Greenhouse L. Failure to match sensory information to decision in patients with depression. The Ninth annual Meeting of The Israel Society for Biological Psychiatry (2005).
3. Mandel, Y., Polat, U., Bar, A., Yehezkel, M., Rosner, M. and Belkin, M. Scotopic Contrast Sensitivity: a rapid method for evaluating foveal functions Ophthalmic Technologies XV: Biomedical Optical Society, SPIE 2005, Abstract 5688 A-01(2005).
4. Lahav, A., Levkovitch-Verbin, H., Yehezkel, O., Belkin, M. and Polat, U. Foveal Contrast Sensitivity Testing in Glaucoma Israel Society for Vision & Eye Research 25th Ann. Meet., p.94 (2005).
5. Yehezkel O., Belkin M., Sagi D., and Polat U.,. Binocular composition of monocular patterns in perceptual grouping Neural Plasticity, 16 (1) p 69 (14th Annual meeting of ISFN) (2005).
6. Yehezkel, O., Belkin, M., Sagi, D. and Polat. U. Adaptation to monocular astigmatic distortion is disrupted by conflicting binocular input Israel Society for Vision & Eye Research 25th Ann. Meet., p.35 (2005).
7. Yehezkel, O., Sagi, D. and Polat, U. Adaptation to monocular astigmatic distortion is disrupted by conflicting binocular input Ass. Res. Vis. Ophth. 2005 Ann. Meet (2005).
8. Yehezkel, O., Sagi, D. and Polat, U. Adaptation to astigmatic lens: effects of lateral interactions Vision Sciences Society, (5) (5 Annual meeting of VSS) (2005).
9. Yehezkel, O., Belkin, M., Sagi, D. and Polat. U. Adapting to monocular astigmatic distortion is disrupted by conflicting binocular input Association for research in vision and ophthalmology, Annual meeting of ARVO (2005).
10. Yehezkel, O., Belkin, M., Sagi, D. and Polat. U. Binocular processing manipulating monocular perception Israel Society for Vision & Eye Research 26th Ann. Meet., p.38 (2006).
11. Yehezkel, O., Sagi, D. and Polat, U. Binocular composition of monocular signals in perceptual grouping, Vision Sciences Society, (6) (6 Annual meeting of VSS) (2006).
12. Sterkin, A., Yehezkel, O., Bonneh, Y., Norcia, A., and Polat, U. Complex neural processing in backward masking as revealed by visual evoked potentials. ISFN Meeting (2006).
13. Sterkin, A., Yehezkel, O., Bonneh, Y., Norcia, A., and Polat, U. Multi-component correlate for lateral collinear interaction in the human visual cortex as revealed by Visual Evoked Potentials. Vision Sciences Society, 7th Annual meeting of VSS (2007).
14. Yehezkel, O., Sterkin, A., Bonneh, Y., Norcia, A., and Polat, U. Spatio-temporal tradeoff in neural processing of backward masking as revealed by visual evoked potentials. Vision Sciences Society, 7th Annual meeting of VSS (2007).
15. Yehezkel, O. and Polat, U. Natural developmental optical astigmatism during childhood induces “cortical astigmatism” in the adult visual cortex. ISFN Meeting (2007).
16. Meshulam A., Yehezkel, O., Mandel Y. RosnerM. BelkinM and Polat, U. Visual processing under limiting visual conditions. ISFN Meeting (2007).
17. Z. Zalevsky, S. Ben Yaish, O. Yehezkel and M. Belkin, “Novel Spectacles for Aberration Corrected Vision: for Myopia, accommodative insufficiency and Astigmatism,” Children Vision Research, UK (2007).
18. Z. Zalevsky, O. Yehezkel, S. Ben-Yaish, A. Zlotnik and M. Belkin, “Near vision reduced need of accommodation via special myopia correcting lenses,” Annual Meeting of the Israel Society for Vision & Eye Research, Neve Ilan, Israel (March 2008).
19. Z. Zalevsky, I. Raveh, O. Yehezkel, S. Ben Yaish, A. Zlotnik and M. Belkin, ” Omni-Focal Refractive Correction Lens: New Solution for Presbyopia,” (ISOP) Internationalo Society Of Presbyopia, Berlin (2008)
20. I. Raveh, O. Yehezkel, S. Ben Yaish, A. Zlotnik, M. Belkin and Z. Zalevsky, “Intraocular lenses with axially continuous extended depth of focus: A novel design,” ESCRS (European Scoiety of Cataract and Refractive Sergury), Berlin (2008).
21. Yehezkel, O., Sterkin, A., Polat, U. (2009). Do the same lateral interactions support collinear facilitation and binocular summation?  9 Annual meeting of VSS
22. Sterkin, A.,Yehezkel, O., Zomet, A., Lev, M., Polat, U. (2009). Pharmacological enhancement of cortical inhibition affects lateral interactions in human vision. 9 Annual meeting of VSS.
23. Z. Zalevsky, S. Ben Yaish, A. Zlotnik, I. Raveh, O. Yehezkel, K. Lahav and M. Belkin, “Extended Depth of Focus by Lens Aperture Interference for Presbyopic, Myopic and Astigmatism Correction,” Refractive and Wavefront Summit – ARI/WFC Alicante (March 2009), Invited talk.
24. A. Zlotnik, S. Ben Yaish, O. Yehezkel, K. Lahav-Yacouel, M. Belkin and Z. Zalevsky, “Extended Depth of Focus Contact Lenses for Presbyopia,” Opt. Letters 34, 2219-2221 (2009).
25. Yehezkel O., Sterkin A., and Polat U.. Mutual modulation between foveal and peripheral responses. ISFN Meeting (2009).
26. Yehezkel O., Sterkin A., and Polat U. Discriminating between faster periphery and slower fovea using ERP. Israel Society for Vision & Eye Research 30th Annual meeting (2010).
27. Yehezkel O., Sterkin A., Bonneh Y. and Polat U. Faster periphery and slower fovea for coherent perception.  10 Annual meeting of VSS. 2010.
28. Polat,U., Sterkin, A., Yehezkel, O., Lev, M., Zomet, A., Schor, C., Levi, D. Perceptual Training Overcomes the Optical Limits of Presbyopia. ARVO 2011.
29. Yehezkel, O. and Polat, U. Emmetropisation process induces “cortical astigmatism” in the adult’s visual cortex. Vision Sciences Society, 8th Annual meeting of VSS (2008).
30. Yehezkel, O. and Polat. U. Emmetropisation process induce “cortical astigmatism” in the adults visual cortex. Israel Society for Vision & Eye Research 28th Annual meeting (2008).
31. Ben Yaish, S., Zlotnik, A., Yehezkel, O., Belkin M. and Zalevsky, Z. Novel aberration correction lens for myopia, presbyopia and astigmatism. Israel Society for Vision & Eye Research 28th Annual meeting (2008).
32. Yehezkel, O., Ben Yaish, S., Zlotnik, A., Belkin, M., and Zalevsky, Z. A novel myopia correcting lens which reduces the need for accommodation for near vision tasks. Association for research in vision and ophthalmology, Annual meeting of ARVO (2008).
33. Ben Yaish, S., Zlotnik, A., Yehezkel, O., Belkin, M., and Zalevsky, Z. Omni-focal refractive correction lens – a potential substitute for bi/multi-focal lenses. Association for research in vision and ophthalmology, Annual meeting of ARVO (2008).
34. Ben Yaish, S., Zlotnik, A., Yehezkel, O., Belkin, M., and Zalevsky, Z. Thin films as spectacles and contact lenses for aberration-corrected vision via brain adaptation to contrast. Vision Sciences Society, 8th Annual meeting of VSS (2008).
35. Yehezkel, O., Polat, U. Visual experiments may induce “cortical astigmatism” in adult visual cortex. The 19th research fair of the Sackler faculty of medicine (2008).
36. Yehezkel O., Sterkin A. and Polat U.Binocular interactions are different from lateral interactions. ISFN Meeting (2008).
37. Sterkin A., Yehezkel O., Zomet A., Lev M. and Polat U. Pharmacological manipulation of lateral interactions in human vision. ISFN Meeting (2008).
38. Ben Yaish, S.,  Zlotnik, A.,Raveh.I., Yehezkel, O., Belkin, M., Lahav, k.and Zalevsky, Z. Omni-focal refractive focus correction technology as a substitute for bi/multi-focal intraocular lenses, contact lenses and spectacles. Ophthalmic Technologies XIX : Biomedical Optical Society, SPIE 2009, Abstract 7163-58
39. Perceptual training induces visual gains that overcome the optical deficits in presbyopia. Sterkin, A., Polat, U., Yehezkel, O., Lev, M., Zomet, A., Schor, C., and Levi, D. ISVER 2011.

oren.yehezkel@gmail.com
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