Effect of blur and subsequent adaptation on visual acuity using letter and Landolt C charts: differences between emmetropes and myopes

To compare the effects of defocus induced blur and blur adaptation on visual acuity and to evaluate any differences between emmetropes and myopes using letter and Landolt C logMAR charts.

[1]  M. Webster.  Adaptation and visual coding. , 2011, Journal of vision.

[2]  R. Becker,et al.  [Landolt C and snellen e acuity: differences in strabismus amblyopia?]. , 2006, Klinische Monatsblatter fur Augenheilkunde.

[3]  B. Rassow,et al.  [Correlation of letter optotypes with Landholt ring for different degrees of visual acuity]. , 1999, Klinische Monatsblatter fur Augenheilkunde.

[4]  Matthew P Cufflin,et al.  Effect of blur adaptation on blur sensitivity and discrimination in emmetropes and myopes. , 2007, Investigative ophthalmology & visual science.

[5]  Christian Wehrhahn,et al.  Contrast dependency of foveal spatial functions: orientation, vernier, separation, blur and displacement discrimination and the tilt and Poggendorff illusions , 1999, Vision Research.

[6]  W. Wittich,et al.  Differences between recognition and resolution acuity in patients undergoing macular hole surgery. , 2006, Investigative ophthalmology & visual science.

[7]  A. C. Kooijman,et al.  Measurement of visual acuity with two different charts; a comparison of results and repeatability in patients with cataract , 2005, Documenta Ophthalmologica.

[8]  B. Rassow,et al.  Anschluß von Buchstaben-Optotypen an den Landolt-Ring für verschiedene Bereiche der Sehschärfe , 1999 .

[9]  James R Tresilian,et al.  Improving vision: neural compensation for optical defocus , 1998, Proceedings of the Royal Society of London. Series B: Biological Sciences.

[10]  A Carkeet,et al.  Modeling logMAR Visual Acuity Scores: Effects of Termination Rules and Alternative Forced-Choice Options , 2001, Optometry and vision science : official publication of the American Academy of Optometry.

[11]  Andrew Metha,et al.  Enhanced contrast sensitivity confirms active compensation in blur adaptation. , 2010, Investigative ophthalmology & visual science.

[12]  Susana Marcos,et al.  Adaptation to astigmatic blur. , 2010, Journal of vision.

[13]  B. Jiang.  Integration of a sensory component into the accommodation model reveals differences between emmetropia and late-onset myopia. , 1997, Investigative ophthalmology & visual science.

[14]  R S Anderson,et al.  The selective effect of optical defocus on detection and resolution acuity in peripheral vision. , 1996, Current eye research.

[15]  Huanqing Guo,et al.  Blur limits for defocus, astigmatism and trefoil , 2009, Vision Research.

[16]  D A Atchison,et al.  The Effect of Pupil Size on Visual Acuity in Uncorrected and Corrected Myopia , 1979, American journal of optometry and physiological optics.

[17]  Yuli D. Chashechkin,et al.  Transportation of a dye in upstream and downstream wakes of the cylinder in continuously stratified liquid , 2007, J. Vis..

[18]  Mark Rosenfield,et al.  Blur Adaptation in Myopes , 2004, Optometry and vision science : official publication of the American Academy of Optometry.

[19]  Sotiris Plainis,et al.  Binocular summation improves performance to defocus-induced blur. , 2011, Investigative ophthalmology & visual science.

[20]  S. Pardhan,et al.  Unequal Reduction in Visual Acuity with Positive and Negative Defocusing Lenses in Myopes , 2004, Optometry and vision science : official publication of the American Academy of Optometry.

[21]  Donald W Kline,et al.  Resolution of blur in the older eye: neural compensation in addition to optics? , 2010, Journal of vision.

[22]  F L Ferris,et al.  Standardized illumination for visual acuity testing in clinical research. , 1982, American journal of ophthalmology.

[23]  D A Atchison,et al.  Predicting the effects of optical defocus on human contrast sensitivity. , 1998, Journal of the Optical Society of America. A, Optics, image science, and vision.

[24]  Markus Meister,et al.  Retina versus Cortex Contrast Adaptation in Parallel Visual Pathways , 2004, Neuron.

[25]  Susana Marcos,et al.  Adapting to blur produced by ocular high-order aberrations. , 2011, Journal of vision.

[26]  A. Kohn.  Visual adaptation: physiology, mechanisms, and functional benefits. , 2007, Journal of neurophysiology.

[27]  F. Thorn,et al.  Myopia Adults See Through Defocus Better Than Emmetropes , 1998 .

[28]  David Whitaker,et al.  Effect of blur adaptation on human parafoveal vision. , 2012, Investigative ophthalmology & visual science.

[29]  K. Pesudovs,et al.  Decreased Uncorrected Vision After a Period of Distance Fixation with Spectacle Wear , 1993, Optometry and vision science : official publication of the American Academy of Optometry.

[30]  G Walsh,et al.  The effect of defocus on the contrast and phase of the retinal image of a sinusoidal grating , 1989, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[31]  R. Hamer,et al.  Effects of age and optical blur on real depth stereoacuity , 2010, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[32]  D. G. Green,et al.  Optical and retinal factors affecting visual resolution. , 1965, The Journal of physiology.

[33]  Bin Wang,et al.  Foveal blur discrimination of the human eye , 2005, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[34]  Matthew P. Cufflin,et al.  Static accommodative responses following adaptation to differential levels of blur , 2007, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[35]  M. Rosenfield,et al.  Blur Adaptation and Myopia , 2004, Optometry and vision science : official publication of the American Academy of Optometry.

[36]  D. Hubel,et al.  Receptive fields, binocular interaction and functional architecture in the cat's visual cortex , 1962, The Journal of physiology.

[37]  P. Mitchell,et al.  Total ocular, anterior corneal and lenticular higher order aberrations in hyperopic, myopic and emmetropic eyes , 2012, Vision Research.

[38]  Pei-Chang Wu,et al.  Visual acuity as measured with Landolt C chart and Early Treatment of Diabetic Retinopathy Study (ETDRS) chart , 2011, Graefe's Archive for Clinical and Experimental Ophthalmology.

[39]  B Rassow,et al.  Correlation of Optotypes with the Landolt Ring—A Fresh Look at the Comparability of Optotypes , 1994, Optometry and vision science : official publication of the American Academy of Optometry.

[40]  Eli Peli,et al.  A relationship between tolerance of blur and personality. , 2010, Investigative ophthalmology & visual science.

[41]  M. Tsilimbaris,et al.  A Modified ETDRS Visual Acuity Chart for European-Wide Use , 2007, Optometry and vision science : official publication of the American Academy of Optometry.

[42]  M Rosenfield,et al.  Blur sensitivity in myopes. , 1999, Optometry and vision science : official publication of the American Academy of Optometry.

[43]  Steven R. Ali,et al.  “Bothersome blur”: A functional unit of blur perception , 2006, Vision Research.

[44]  G Smith,et al.  Effect of Defocus on Blur Thresholds and on Thresholds of Perceived Change in Blur: Comparison of Source and Observer Methods , 1989, Optometry and vision science : official publication of the American Academy of Optometry.

[45]  Mahnaz Shahidi,et al.  Object frequency characteristics of visual acuity. , 2011, Investigative ophthalmology & visual science.

[46]  L J Press,et al.  Effects of dioptric blur on Snellen and grating acuity. , 1990, Optometry and vision science : official publication of the American Academy of Optometry.