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Optics confidential
41 posts
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- May 17, 2012
- 03:47 AM
- 627 views
Too good to be true? Stopping myopia progression by controlling peripheral refraction.
by Pablo Artal in Optics confidential
New lights on optical methods to control myopia progression are not very promising... learn more.... Read more »
Jaeken, B., & Artal, P. (2012) Optical quality of emmetropic and myopic eyes in the periphery measured with high angular resolution. Investigative Ophthalmology . DOI: 10.1167/iovs.11-8993
- March 19, 2012
- 09:49 PM
- 430 views
Is the display resolution of the new Ipad adequate for the eye?
by Pablo Artal in Optics confidential
Visual optics tell us if the resolution of the new Ipad display enough for the eye and how compares with the ipad2... ... Read more »
Villegas, E., Alcon, E., & Artal, P. (2008) Optical Quality of the Eye in Subjects with Normal and Excellent Visual Acuity. Investigative Ophthalmology , 49(10), 4688-4696. DOI: 10.1167/iovs.08-2316
- February 20, 2012
- 02:09 AM
- 476 views
Which intraocular lens fits my eye? Science not magic
by Pablo Artal in Optics confidential
Learn how to determine the power of an intraocular lens after cataract surgery. Science, not magic...... Read more »
Canovas, C., & Artal, P. (2011) Customized eye models for determining optimized intraocular lenses power. Biomedical Optics Express, 2(6), 1649. DOI: 10.1364/BOE.2.001649
- January 31, 2012
- 06:00 AM
- 480 views
Correcting presbyopia with corneal inlays: ¿reinventing the wheel or the advantages of simplicity?
by Pablo Artal in Optics confidential
A simple method to correct for presbyopia is evaluated...... Read more »
Tabernero, J., Schwarz, C., Fernandez, E., & Artal, P. (2011) Binocular Visual Simulation of a Corneal Inlay to Increase Depth of Focus. Investigative Ophthalmology , 52(8), 5273-5277. DOI: 10.1167/iovs.10-6436
- December 27, 2011
- 11:00 AM
- 483 views
Optics research and the eye in Spain during the XX century: a brief history
by Pablo Artal in Optics confidential
A brief historical account on optical and vision research in Spain in the XX century... Read more »
Marcos, Artal, Santamaría, Aguilar, Plaza. (2006) Research in Physiological Optics in Spain: A historical revision. Opt. Pura Apl. 39 (3) 189-197 . info:/
- November 7, 2011
- 05:30 AM
- 499 views
Evaluating dry eyes
by Pablo Artal in Optics confidential
Dry eye is a condition affecting millions of people. Surprisingly there is a lack of objective methods to evaluate tear film quality. A new optical method is described here, discussing implications and more...... Read more »
Benito, A., Pérez, G., Mirabet, S., Vilaseca, M., Pujol, J., Marín, J., & Artal, P. (2011) Objective optical assessment of tear-film quality dynamics in normal and mildly symptomatic dry eyes. Journal of Cataract , 37(8), 1481-1487. DOI: 10.1016/j.jcrs.2011.03.036
- October 10, 2011
- 08:30 AM
- 537 views
How your eye affects quality of vision?
by Pablo Artal in Optics confidential
Perhaps one of the most interesting topics today in the area of physiological optics is the relationship between the ocular optics and vision. This has been a subject of study for decades, if not centuries, but I elaborate more on my current views of this exciting problem... ... Read more »
Villegas, E., Alcon, E., & Artal, P. (2008) Optical Quality of the Eye in Subjects with Normal and Excellent Visual Acuity. Investigative Ophthalmology , 49(10), 4688-4696. DOI: 10.1167/iovs.08-2316
- August 31, 2011
- 01:34 AM
- 839 views
Advice to become a refined self-plagiarist. (Disclaimer: it is not ethical and will not help your career)
by Pablo Artal in Optics confidential
Some comments on self-plagiarism practices in science that will damage your career... sooner than later... Read more »
Yentis, S. (2010) Another kind of ethics: from corrections to retractions. Anaesthesia, 65(12), 1163-1166. DOI: 10.1111/j.1365-2044.2010.06557.x
- August 1, 2011
- 11:33 PM
- 816 views
Why to worry about the optics of the eye in the peripheral retina?
by Pablo Artal in Optics confidential
Why is important the optics of the eye in the peripheral retina? How this can be measured fast and with accuracy? Yes, this can be really quite important for the future of how to control myopia development... ... Read more »
Jaeken, B., Lundström, L., & Artal, P. (2011) Fast scanning peripheral wave-front sensor for the human eye. Optics Express, 19(8), 7903. DOI: 10.1364/OE.19.007903
- March 15, 2011
- 12:00 PM
- 993 views
The optics of the eye in older people is not as bad as you would think...
by Pablo Artal in Optics confidential
The eye is an optical instrument made of biological tissues and surprinsingly still working after many years... you may know some reasons.... Read more »
Berrio, E., Tabernero, J., & Artal, P. (2010) Optical aberrations and alignment of the eye with age. Journal of Vision, 10(14), 34-34. DOI: 10.1167/10.14.34
- February 7, 2011
- 01:30 PM
- 808 views
How can I know if I have cataracts and its severity?
by Pablo Artal in Optics confidential
Lear about a new optical method to detect and grade cataract... and more... Read more »
Artal, P., Benito, A., Pérez, G., Alcón, E., De Casas,, Pujol, J., & Marín, J. (2011) An Objective Scatter Index Based on Double-Pass Retinal Images of a Point Source to Classify Cataracts. PLoS ONE, 6(2). DOI: 10.1371/journal.pone.0016823
- December 28, 2010
- 01:00 AM
- 737 views
How a change of gaze affects the eye optics?
by Pablo Artal in Optics confidential
Discover how your change in the direction of gaze can affect the optical properties of the eye... and more.... Read more »
Prado, P., Arines, J., Bará, S., Manzanera, S., Mira-Agudelo, A., & Artal, P. (2009) Changes of ocular aberrations with gaze. Ophthalmic and Physiological Optics, 29(3), 264-271. DOI: 10.1111/j.1475-1313.2009.00652.x
- December 12, 2010
- 02:00 PM
- 779 views
Optics & stereopsis: how 3D vision is affected by retinal image quality?
by Pablo Artal in Optics confidential
Stereo (3D) vision is affected by the quality of the images in the retina. An adaptive optics instrument allows the testing of 3D vision and more...... Read more »
Fernández, E., Prieto, P., & Artal, P. (2010) Adaptive optics binocular visual simulator to study stereopsis in the presence of aberrations. Journal of the Optical Society of America A, 27(11). DOI: 10.1364/JOSAA.27.000A48
- October 8, 2010
- 01:52 PM
- 796 views
Virtual cataract surgery: advanced optics helping surgeons and... patients
by Pablo Artal in Optics confidential
Virtual cataract surgery is a customized optical modeling helping the design of intraocular lenses and improving vision of cataract patients... learn more... Read more »
Tabernero, J. et al. (2006) Predicting the Optical Performance of Eyes Implanted with IOLs to Correct Spherical Aberration. Investigative Ophthalmology , 47(10), 4651-4658. DOI: 10.1167/iovs.06-0444
- August 31, 2010
- 01:51 PM
- 876 views
Seeing double: perhaps is simply optical diplopia
by Pablo Artal in Optics confidential
Changes in the optics of the eye can produce double or even multiple images... a real case is explained as an example and more... ... Read more »
Pérez, G., Abenza, S., De Casas, A., Marín, J., & Artal, P. (2010) Cause of Monocular Diplopia Diagnosed by Combining Double-pass Retinal Image Assessment and Hartmann-Shack Aberrometry. Journal of Refractive Surgery, 26(4), 301-304. DOI: 10.3928/1081597X-20100218-05
- June 30, 2010
- 10:13 AM
- 919 views
The exploration of the eye as an optical instrument: the last 400 years
by Pablo Artal in Optics confidential
A brief summary of how the optics of the eye was explored since Galileo's time. An exciting journey...... Read more »
Artal, P., & Tabernero, J. (2010) Optics of human eye: 400 years of exploration from Galileo’s time. Applied Optics, 49(16). DOI: 10.1364/AO.49.00D123
- April 30, 2010
- 02:00 PM
- 923 views
Why I should pay taxes to fund (basic) science?
by Pablo Artal in Optics confidential
A practical example from ophthalmic optics research to convince readers on the importance of expending money in basic research... and more ... Read more »
Tabernero, J., Benito, A., Alcón, E., & Artal, P. (2007) Mechanism of compensation of aberrations in the human eye. Journal of the Optical Society of America A, 24(10), 3274. DOI: 10.1364/JOSAA.24.003274
- March 12, 2010
- 12:00 PM
- 1,086 views
The (empirical) rule of 8%
by Pablo Artal in Optics confidential
Some advice on how to deal with students and postdocs...... Read more »
Perez, G., Archer, S., & Artal, P. (2009) Optical Characterization of Bangerter Foils. Investigative Ophthalmology , 51(1), 609-613. DOI: 10.1167/iovs.09-3726
- February 18, 2010
- 07:00 AM
- 1,089 views
Chromatic aberration of the eye: to correct or not to correct?
by Pablo Artal in Optics confidential
The human eye suffers of a very large chromatic aberration. This means that when a red object is in focus, a blue one at the same distance will be clearly out of focus. Why we are not yet routinely correcting this defect to improve vision? You will find here some new experiments, results and explanations...... Read more »
Artal, P., Manzanera, S., Piers, P., & Weeber, H. (2010) Visual effect of the combined correction of spherical and longitudinal chromatic aberrations. Optics Express, 18(2), 1637. DOI: 10.1364/OE.18.001637
- December 30, 2009
- 06:45 AM
- 1,115 views
2010, the year when 20/10 vision was promised
by Pablo Artal in Optics confidential
The promise of perfect "20/10" vision for everybody appeared to be a real possibility in the early 2000's. 2010 is already here and your doctor cannot offer you yet supervision...... Read more »
Santamaria, Artal, Bescos. (1987) Determination of the point spread function of human eyes using a hybrid optical-digital method. J.Opt.Soc.Am.A., 1109. info:/
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