The effect of accommodative hysteresis on apparent distance

The influence of accommodative hysteresis on monocular distance perception was examined in 18 visually normal young adults. Tonic accommodation and apparent distance were measured immediately before and after a 10 minute period of sustained focus at either the accommodative nearpoint or farpoint. Separate sessions were used for the two sustained focus conditions. On each session, apparent distance was assessed for both a highly effective and a non‐effective accommodative target viewed at a constant optical distance of 3 D. Sustained focus at the nearpoint resulted in a significant increase in the apparent distance of the highly effective accommodative target, as well as in tonic accommodation. Sustained focus at the farpoint yielded a slight decrease in tonic accommodation, but no significant alteration in the apparent distance of the highly effective accommodative target. No tendency for change in the apparent distance of the non‐effective accommodative target was observed under either the nearpoint or farpoint condition. The results suggest that accommodative distance information is linked to the level of monocular blur‐driven accommodative innervation necessary for clarity of focus.

[1]  W. N. Charman,et al.  Dependence of accommodation response on the spatial frequency spectrum of the observed object , 1977, Vision Research.

[2]  George C. Woo,et al.  CLINICAL VISUAL OPTICS , 1991 .

[3]  S. Duke-Elder,et al.  Ophthalmic optics and refraction , 1970 .

[4]  S M Ebenholtz,et al.  Does perceptual adaptation to telestereoscopically enhanced depth depend on the recalibration of binocular disparity? , 1986, Perception & psychophysics.

[5]  J. C. Kotulak,et al.  Dynamic interactions between accommodation and convergence are velocity sensitive , 1986, Vision Research.

[6]  K J Ciuffreda,et al.  Accommodative accuracy to harmonically related complex grating patterns and their components , 1988, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[7]  John M. Foley,et al.  Visually directed pointing as a function of target distance, direction, and available cues , 1972 .

[8]  Jacob Nachmias,et al.  The Effect of Oculomotor Adjustments on Apparent Size , 1959 .

[9]  John M Foley,et al.  Effect of Distance Information and Range on Two Indices of Visually Perceived Distance , 1977, Perception.

[10]  K J Ciuffreda,et al.  Tonic Adaptation in Symptomatic and Asymptomatic Subjects , 1987, American journal of optometry and physiological optics.

[11]  Wayne L. Shebilske,et al.  Context Effects and Efferent Factors in Perception and Cognition , 1984 .

[12]  M W Morgan,et al.  Accommodation and vergence. , 1968, American journal of optometry and archives of American Academy of Optometry.

[13]  D. O'leary,et al.  Stability of the accommodative dark focus after periods of maintained accommodation. , 1986, Investigative ophthalmology & visual science.

[14]  H W Leibowitz,et al.  Anomalous myopias and the intermediate dark focus of accommodation. , 1975, Science.

[15]  K J Ciuffreda,et al.  INTEROCULAR EQUALITY OF TONIC ACCOMMODATION AND CONSENSUALITY OF ACCOMMODATIVE HYSTERESIS * , 1987, Ophthalmic & physiological optics.

[16]  S. Ebenholtz.  Accommodative Hysteresis: Relation to Resting Focus , 1985, American journal of optometry and physiological optics.

[17]  W. Shebilske,et al.  Induced esophoric shifts in eye convergence and illusory distance in reduced and structured viewing conditions. , 1983, Journal of experimental psychology. Human perception and performance.

[18]  M Millodot,et al.  The relationship between tonic accommodation and refractive error. , 1987, Investigative ophthalmology & visual science.

[19]  D. Whitteridge,et al.  The effect of stimulation of intrafusal muscle fibres on sensitivity to stretch of extraocular muscle spindles. , 1959, Quarterly journal of experimental physiology and cognate medical sciences.

[20]  P. Ward,et al.  THE EFFECT OF STIMULUS CONTRAST ON THE ACCOMMODATION RESPONSE , 1987, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[21]  K J Ciuffreda,et al.  Short-term changes in tonic accommodation. , 1986, Investigative ophthalmology & visual science.

[22]  L. Matin.  Eye Movements and Perceived Visual Direction , 1972 .

[23]  S M Ebenholtz,et al.  Distance adaptation depends upon plasticity in the oculomotor control system , 1982, Perception & psychophysics.

[24]  H WALLACH,et al.  ACCOMMODATION AS A DISTANCE-CUE. , 1963, The American journal of psychology.

[25]  V. W. Grant,et al.  Accommodation and convergence in visual space perception. , 1942 .

[26]  K. Ciuffreda,et al.  TIME COURSE AND DECAY OF EFFECTS OF NEAR WORK ON TONIC ACCOMMODATION AND TONIC VERGENCE , 1987, Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians.

[27]  Accommodative hysteresis: influence on closed loop measures of far point and near point. , 1987, Investigative ophthalmology & visual science.

[28]  Campbell Fw.  A method for measuring the depth of field of the human eye. , 1954 .

[29]  W. Shebilske,et al.  Efferent factors in natural event perception can be rationalized and verified: a reply to Turvey and Solomon. , 1984, Journal of experimental psychology. Human perception and performance.

[30]  K J Ciuffreda,et al.  Accommodation and Apparent Distance , 1988, Perception.

[31]  Leonard Matin,et al.  A Possible Hybrid Mechanism for Modification of Visual Direction Associated with Eye Movements—The Paralyzed-Eye Experiment Reconsidered , 1976 .

[32]  D A Owens,et al.  Near work, visual fatigue, and variations of oculomotor tonus. , 1987, Investigative ophthalmology & visual science.

[33]  W. Shebilske,et al.  Eye-position aftereffects of backward head tilt manifested by illusory visual direction , 1977 .

[34]  F. Campbell,et al.  A method for measuring the depth of field of the human eye. , 1957, The Journal of physiology.

[35]  T. Künnapas,et al.  [Distance perception as a function of available visual cues]. , 1968, Journal of experimental psychology.

[36]  G Peters,et al.  Monocular and binocular estimations of distance when knowledge of the relevant space is absent. , 1970, The Journal of psychology.

[37]  L Martin,et al.  A possible hybrid mechanism for modification of visual direction associated with eye movements - the paralyzed-eye experiment reconsidered. , 1976, Perception.

[38]  Herschel W. Leibowitz,et al.  Oculomotor adjustments in darkness and the specific distance tendency , 1976 .

[39]  S M Ebenholtz,et al.  Accommodative hysteresis: a precursor for induced myopia? , 1983, Investigative ophthalmology & visual science.

[40]  K J Ciuffreda,et al.  Tonic Accommodation, Accommodative Hysteresis, and Refractive Error , 1987, American journal of optometry and physiological optics.

[41]  Extraocular proprioception and muscle function. , 1972, Bibliotheca ophthalmologica : supplementa ad ophthalmologica.