New type of perceptual suppression during dynamic ocular accommodation

Mucke, Sven; Manahilov, Velitchko; Strang, Niall C.; Seidel, Dirk; Gray, Lyle S.

doi:10.1016/j.cub.2008.04.037

Cited by 7 publications

(9 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These results suggest that the accommodation response controller uses low SF information to initiate the step response and then uses higher SFs for final accurate focussing at the new response level 22,25,30 . Suppression of high SF target information reported during large accommodation step responses would support this theory 31 …”

Section: Introductionmentioning

confidence: 69%

“…When the target is blurred substantially (≥1.5D), only low SF information will be available to the accommodation control system, as these SFs are less affected by blur 44 . More recent work has suggested that the role of high SF information is limited to final response refinement as high SF information is unlikely to be perceived during the step response 31,45 …”

Section: Discussionmentioning

confidence: 99%

“…44 More recent work has suggested that the role of high SF information is limited to final response refinement as high SF information is unlikely to be perceived during the step response. 31,45 The use of continuous negative feedback control to maintain an accurate accommodation response level is well established. Our results show that for small changes in accommodation stimulus level, target SF has considerably less effect upon the magnitude of the response, as the system can obtain accurate focusing information from all targets, irrespective of SF.…”

Section: Discussionmentioning

confidence: 99%

“…22,25,30 Suppression of high SF target information reported during large accommodation step responses would support this theory. 31 Taking account of the different static myopic accommodation response characteristics discussed above, it becomes clear that response differences could be exacerbated in dynamic conditions where target information is limited. Many studies have been carried out, and to date inconsistencies in methodologies and results make it difficult to interpret the exact nature of refractive group differences in the dynamic accommodation response.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Accommodation steps, target spatial frequency and refractive error

Strang

Day

Gray

et al. 2011

Ophthalmic Physiologic Optic

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 69%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Accommodation steps, target spatial frequency and refractive error

Strang

Day

Gray

et al. 2011

Ophthalmic Physiologic Optic

Self Cite

View full text Add to dashboard Cite

show abstract

“…there is no visual feedback during this part of the response. Mucke and colleagues have found evidence that for accommodation (response to a far-to-near target), contrast sensitivity of high spatial frequencies is suppressed during the fast phase of the AR [26]. The response is refined and held by a slower closed-loop mechanism involving visual feedback.…”

Section: Discussionmentioning

confidence: 99%

Effect of temporal location of correction of monochromatic aberrations on the dynamic accommodation response

Hampson

Chin

Mallen

2010

Biomed. Opt. Express

View full text Add to dashboard Cite

Dynamic correction of monochromatic aberrations of the eye is known to affect the accommodation response to a step change in stimulus vergence. We used an adaptive optics system to determine how the temporal location of the correction affects the response. The system consists of a Shack-Hartmann sensor sampling at 20 Hz and a 37-actuator piezoelectric deformable mirror. An extra sensing channel allows for an independent measure of the accommodation level of the eye. The accommodation response of four subjects was measured during a +/− 0.5 D step change in stimulus vergence whilst aberrations were corrected at various time locations. We found that continued correction of aberrations after the step change decreased the gain for disaccommodation, but increased the gain for accommodation. These results could be explained based on the initial lag of accommodation to the stimulus and changes in the level of aberrations before and after the stimulus step change. Future considerations for investigations of the effect of monochromatic aberrations on the dynamic accommodation response are discussed.

show abstract

Spatial frequency selectivity of visual suppression during convergence eye movements

et al. 2013

View full text Add to dashboard Cite

Visual suppression of low-spatial frequency information during eye movements is believed to contribute to a stable perception of our visual environment. While visual perception has been studied extensively during saccades, vergence has been somewhat neglected. Here, we show that convergence eye movements reduce contrast sensitivity to low spatial frequency information around the onset of the eye movements, but do not affect sensitivity to higher spatial frequencies. This suggests that visual suppression elicited by convergence eye movements may have the same temporal and spatial characteristics as saccadic suppression.

show abstract

New type of perceptual suppression during dynamic ocular accommodation

Cited by 7 publications

References 10 publications

Accommodation steps, target spatial frequency and refractive error

Accommodation steps, target spatial frequency and refractive error

Effect of temporal location of correction of monochromatic aberrations on the dynamic accommodation response

Spatial frequency selectivity of visual suppression during convergence eye movements

Contact Info

Product

Resources

About