geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Neural adaptation to peripheral blur in myopes and emmetropes


, : Neural adaptation to peripheral blur in myopes and emmetropes. Vision Research (): -

NlmCategory="UNASSIGNED">In the presence of optical blur at the fovea, blur adaptation can improve visual acuity (VA) and perceived image quality over time. However, little is known regarding blur adaptation in the peripheral retina. Here, we examined neural adaptation to myopic defocus at the fovea and parafovea (10° temporal retina) in both emmetropes and myopes. During the 60-min adaptation period, subjects (3 emmetropes and 3 myopes) watched movies with +2 diopters of defocus blur through a 6-mm artificial pupil in two separate, counter balanced sessions for each retinal location. VA was measured at 10-min intervals under full aberration-corrected viewing using an adaptive optics (AO) vision simulator. By correcting subjects' native optical aberrations with AO, the influence of the individual subjects' optical aberrations on visual performance was bypassed. Overall, VA improved significantly after the 60-min of adaptation at both the fovea (mean ±SE VA improvement: -0.06±0.04 logMAR) and parafovea (mean ±SE VA improvement: -0.07±0.04 logMAR). Myopic subjects exhibited significantly greater improvement in parafoveal VA (mean ±SE VA improvement: 0.10±0.02 logMAR), than that of emmetropic subjects (mean ±SE VA improvement: 0.04±0.03 logMAR). In contrast, there was no significant difference in foveal VA between the two refractive error groups. In conclusion, our results reveal differences in peripheral blur adaptation between refractive error groups, with myopes displaying a greater degree of adaptation.

US$19.90

PMID: 27919674

DOI: 10.1016/j.visres.2016.09.017


Other references

Wang, C-Cai.; Juang, L-Chuen.; Hsu, T-Chu.; Lee, C-Kung.; Lee, J-Fwu.; Huang, F-Chuang., 2004: Adsorption of basic dyes onto montmorillonite. Ca-montmorillonite (Ca-Mont) was exchanged with titanium cations and the adsorption equilibrium and kinetics of Basic Green 5 (BG5) and Basic Violet 10 (BV10) on these montmorillonites were measured to examine the ion-exchange effects on the basic...

Basu, A.; Bartholomew, P.H.; Weaver, J.U., 1999: The outcome of treatment of thyrotoxicosis using fixed dose of 400 MBq of I131; experience in a busy district general hospital. Journal of Endocrinology 160(SUPPL ): P251, March

Shlaes, D.M., 2015: Research and Development of Antibiotics: The Next Battleground. Antibiotic research has been hindered by a perfect storm consisting of scientific challenges, regulatory uncertainties, difficult markets, and industrial consolidation. At the same time, antibiotic resistance is making the medical need for a robus...

Rasheed V.; Plumb J.A., 1984: Pathogenicity of a nonhemolytic group b streptococcus sp in gulf killifish fundulus grandis. Gulf killifish (F. grandis) were injected i.p. with different bacterial concentrations and the LD50 were 1.4 .times. 104 at 96 h and 7.5 .times. 10 at 168 h. No deaths occurred among fish dipped in the bacterial suspension for different time perio...

Dagdelen, M.; Noah, E.M., 2014: Ethnic rhinoplasty - type changing or type preserving?. We observe an annual augmentation of rhinoplasties to patients with migration background. This article illustrates the special features of the design and procedure of the operation considering the ethnic factors. We present a review of patients wi...

Dat, N.Tien.; Jin, X.; Hong, Y-Soo.; Lee, J.Joon., 2010: An isoaurone and other constituents from Trichosanthes kirilowii seeds inhibit hypoxia-inducible factor-1 and nuclear factor-kappaB. Hypoxia-inducible factor-1 and nuclear factor-kappaB have become important targets in cancer treatment due to their critical role in the regulation of genes involved in tumorigenesis. Bioassay-guided fractionation of the methanol extract of Tricho...

Jack I.G., 1994: Future evolution of the 3D seismic method. Proceedings - World Petroleum Congress = Actes et Documents - Congres Mondial du Petrole 14, Vol

Lauridsen U.B.; Kikegaard C.; Friis T.; Siersbaek Nielsen K., 1975: Stimulation with thyrotropin releasing hormone during anti thyroid treatment. Acta Endocrinologica 78(3): 461-467

Chernesky, M.A., 1984: Current advances in viral diagnostic technology applicable to polio vaccination and diagnosis. Advancements in the fields of molecular virology, immunology, biochemistry, and physical chemistry have enabled the development of sensitive and specific assays for rapid diagnosis. Similarly, developments in antiviral chemotherapy have provided m...

Bufka, L.; Cerveny, J., 1996: The lynx (Lynx lynx L.) in the Sumava region, southwest Bohemia. Journal of Wildlife Research. Spring; 12: 167-170