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Original Article

The Changes in Phoria and Convergence to Divergence Peak Velocity Ratio Are Correlated

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Pages 1054-1065 | Received 18 Aug 2011, Accepted 12 May 2012, Published online: 12 Jun 2012

REFERENCES

  • Coffey B, Reichow AW, Colburn PB et al. Influence of ocular gaze and head position on 4 m heterophoria and fixation disparity. Optom Vis Sci 1991;68:893–898.
  • Han SJ, Guo Y, Granger-Donetti B et al. Quantification of heterophoria and phoria adaptation using an automated objective system compared to clinical methods. Ophthalmic Physiol Opt 2010;30:95–107.
  • Casillas Casillas E, Rosenfield M. Comparison of subjective heterophoria testing with a phoropter and trial frame. Optom Vis Sci 2006;83:237–241.
  • Rosenfield M. Tonic vergence and vergence adaptation. Optom Vis Sci 1997;74:303–328.
  • Wilmer JB, Buchanan GM. Nearpoint phorias after nearwork predict ADHD symptoms in college students. Optom Vis Sci 2009;86:971–978.
  • Ying SH, Zee DS. Phoria adaptation after sustained symmetrical convergence: influence of saccades. Exp Brain Res 2006;171:297–305.
  • Lee YY, Chen T, Alvarez TL. Quantitative assessment of divergence eye movements. J Vis 2008;8:5.1–513.
  • Kim EH, Granger-Donetti B, Vicci VR et al. The relationship between phoria and the ratio of convergence peak velocity to divergence peak velocity. Invest Ophthalmol Vis Sci 2010;51:4017–4027.
  • Rosenfield M, Chun TW, Fischer SE. Effect of prolonged dissociation on the subjective measurement of near heterophoria. Ophthalmic Physiol Opt 1997;17:478–482.
  • Ciuffreda KJ. The scientific basis for and efficacy of optometric vision therapy in nonstrabismic accommodative and vergence disorders. Optometry 2002;73:735–762.
  • Convergence Insufficiency Treatment Trial (CITT) Study Group. The convergence insufficiency treatment trial: design, methods, and baseline data. Ophthalmic Epidemiol 2008. 15:24–36.
  • Scheiman M, Gwiazda J, Li T. Non-surgical interventions for convergence insufficiency. Cochrane Database Syst Rev 2011;3:CD006768.
  • Scheiman M, Rouse M, Kulp MT et al. Treatment of convergence insufficiency in childhood: a current perspective. Optom Vis Sci 2009;86:420–428.
  • Rouse M, Borsting E, Mitchell GL et al. Convergence Insufficiency Treatment Trial (CITT) Investigator Group. Validity of the convergence insufficiency symptom survey: a confirmatory study. Optom Vis Sci 2009;86:357–363.
  • Rouse MW, Borsting EJ, Mitchell GL et al. Convergence Insufficiency Treatment Trial Group. Validity and reliability of the revised convergence insufficiency symptom survey in adults. Ophthalmic Physiol Opt 2004;24:384–390.
  • Scheiman M, Kulp MT, Cotter S et al. Convergence Insufficiency Treatment Trial Study Group. Vision therapy/orthoptics for symptomatic convergence insufficiency in children: treatment kinetics. Optom Vis Sci 2010;87:593–603.
  • Alvarez TL, Vicci VR, Alkan Y et al. Vision therapy in adults with convergence insufficiency: clinical and functional magnetic resonance imaging measures. Optom Vis Sci 2010;87:E985–1002.
  • Brautaset RL, Jennings AJ. Effects of orthoptic treatment on the CA/C and AC/A ratios in convergence insufficiency. Invest Ophthalmol Vis Sci 2006;47:2876–2880.
  • Daum KM. Convergence insufficiency. Am J Optom Physiol Opt 1984;61:16–22.
  • Cohen AH, Soden R. Effectiveness of visual therapy for convergence insufficiencies for an adult population. J Am Optom Assoc 1984;55:491–494.
  • Howarth PA, Heron G. Repeated measures of horizontal heterophoria. Optom Vis Sci 2000;77:616–619.
  • Johns HA, Manny RE, Fern K et al. The intraexaminer and interexaminer repeatability of the alternate cover test using different prism neutralization endpoints. Optom Vis Sci 2004;81:939–946.
  • Rouse MW, Borsting E, Deland PN; Convergence Insufficiency and Reading Study (CIRS) Group. Reliability of binocular vision measurements used in the classification of convergence insufficiency. Optom Vis Sci 2002;79:254–264.
  • Schroeder TL, Rainey BB, Goss DA et al. Reliability of and comparisons among methods of measuring dissociated phoria. Optom Vis Sci 1996;73:389–397.
  • Fogt N, Baughman BJ, Good G. The effect of experience on the detection of small eye movements. Optom Vis Sci 2000;77:670–674.
  • Alvarez TL, Bhavsar M, Semmlow JL et al. Short-term predictive changes in the dynamics of disparity vergence eye movements. J Vis 2005;5:640–649.
  • Patel SS, Jiang BC, Ogmen H. Vergence dynamics predict fixation disparity. Neural Comput 2001;13:1495–1525.
  • Alvarez TL, Semmlow JL, Yuan W et al. Dynamic details of disparity convergence eye movements. Ann Biomed Eng 1999;27:380–390.
  • Takagi M, Oyamada H, Abe H et al. Adaptive changes in dynamic properties of human disparity-induced vergence. Invest Ophthalmol Vis Sci 2001;42:1479–1486.
  • Patel SS, Jiang BC, White JM et al. Nonlinear alteration of transient vergence dynamics after sustained convergence. Optom Vis Sci 1999;76:656–663.
  • Alvarez TL, Semmlow JL, Yuan W, MunozP. Comparison of disparity vergence system responses to predictable and non-predictable timulations. Current Psychology of Cognition 2002; 21:343–375.
  • Rambold H, Neumann G, Sander T et al. Age-related changes of vergence under natural viewing conditions. Neurobiol Aging 2006;27:163–172.
  • Heron G, Charman WN, Schor CM. Age changes in the interactions between the accommodation and vergence systems. Optom Vis Sci 2001;78:754–762.
  • Yuan W, Semmlow JL. The influence of repetitive eye movements on vergence performance. Vision Res 2000;40:3089–3098.
  • Schor CM, Tsuetaki TK. Fatigue of accommodation and vergence modifies their mutual interactions. Invest Ophthalmol Vis Sci 1987;28:1250–1259.
  • Schor CM. The relationship between fusional vergence eye movements and fixation disparity. Vision Res 1979;19:1359–1367.
  • Schor C. Fixation of disparity: a steady state error of disparity-induced vergence. Am J Optom Physiol Opt 1980;57:618–631.
  • Lee YY, Granger-Donetti B, Chang C et al. Sustained convergence induced changes in phoria and divergence dynamics. Vision Res 2009;49:2960–2972.
  • Satgunam P, Gowrisankaran S, Fogt N. The influence of vergence adaptation on open-loop vergence dynamics. Vision Res 2009;49:1795–1804.
  • Schor CM. The influence of rapid prism adaptation upon fixation disparity. Vision Res 1979;19:757–765.
  • Krantz EM, Cruickshanks KJ, Klein BE et al. Measuring refraction in adults in epidemiological studies. Arch Ophthalmol 2010;128:88–92.
  • Rosenfield M, Rappon JM, Carrel MF. Vergence adaptation and the clinical AC/A ratio. Ophthalmic Physiol Opt 2000;20:207–211.
  • Pankhania SR, Firth AY. The response AC/A ratio: differences between inducing and relaxing accommodation at different distances of fixation. Strabismus 2011;19:52–56.
  • Mutti DO, Jones LA, Moeschberger ML et al. AC/A ratio, age, and refractive error in children. Invest Ophthalmol Vis Sci 2000;41:2469–2478.
  • Hughes A. AC/A ratio. Br J Ophthalmol 1967;51:786–787.
  • Schor C, Horner D. Adaptive disorders of accommodation and vergence in binocular dysfunction. Ophthalmic Physiol Opt 1989;9:264–268.
  • Schor C. Influence of accommodative and vergence adaptation on binocular motor disorders. Am J Optom Physiol Opt 1988;65:464–475.
  • Hung GK, Semmlow JL, Ciuffreda KJ. Identification of accommodative vergence contribution to the near response using response variance. Invest Ophthalmol Vis Sci 1983;24:772–777.
  • Tsuetaki TK, Schor CM. Clinical method for measuring adaptation of tonic accommodation and vergence accommodation. Am J Optom Physiol Opt 1987;64:437–449.
  • Kotulak JC, Schor CM. The dissociability of accommodation from vergence in the dark. Invest Ophthalmol Vis Sci 1986;27:544–551.
  • Guo Y, Kim EH, Kim E et al. VisualEyes: a modular software system for oculomotor experimentation. J Vis Exp 2011. 49:2530.
  • Jiang BC, Woessner WM. Dark focus and dark vergence: an experimental verification of the configuration of the dual-interactive feedback model. Ophthalmic Physiol Opt 1996;16:342–347.
  • Wolf KS, Bedell HE, Pedersen SB. Relations between accommodation and vergence in darkness. Optom Vis Sci 1990;67:89–93.
  • Zee DS, Fitzgibbon EJ, Optican LM. Saccade-vergence interactions in humans. J Neurophysiol 1992;68:1624–1641.
  • Bahill AT, Kallman JS, Lieberman JE. Frequency limitations of the two-point central difference differentiation algorithm. Biol Cybern 1982;45:1–4.
  • Convergence Insufficiency Treatment Trial Study Group. Long-term effectiveness of treatments for symptomatic convergence insufficiency in children. Optom Vis Sci 2009;86:1096–1103.
  • Birnbaum MH. An esophoric shift associated with sustained fixation. Am J Optom Physiol Opt 1985;62:732–735.
  • Kim EH, Vicci VR, Granger-Donetti B et al. Short-term adaptations of the dynamic disparity vergence and phoria systems. Exp Brain Res 2011;212:267–278.
  • Svede A, Hoormann J, Jainta S et al. Subjective fixation disparity affected by dynamic asymmetry, resting vergence, and nonius bias. Invest Ophthalmol Vis Sci 2011;52:4356–4361.
  • Saladin JJ. Convergence insufficiency, fixation disparity, and control systems analysis. Am J Optom Physiol Opt 1986;63:645–653.
  • Hung GK. Adaptation model of accommodation and vergence. Ophthalmic Physiol Opt 1992;12:319–326.
  • Flom BC, Freid AN, Jampolsky A. Fixation disparity in relation to heterophoria. Am J Ophthalmol 1957;43:97–106.
  • Jaschinski W, Svede A, Jainta S. Relation between fixation disparity and the asymmetry between convergent and divergent disparity step responses. Vision Res 2008;48:253–263.
  • Collewijn H, Erkelens CJ. Binocular eye movements and the perception of depth. Rev Oculomot Res 1990;4:213–261.
  • Jaschinski W, Jainta S, Kloke WB. Objective vs subjective measures of fixation disparity for short and long fixation periods. Ophthalmic Physiol Opt 2010;30:379–390.
  • Jaschinski W, Koitcheva V, Heuer H. Fixation disparity, accommodation, dark vergence and dark focus during inclined gaze. Ophthalmic Physiol Opt 1998;18:351–359.
  • Jaschinski W, König M. Vergence dynamics and variability of fixation disparity in children and adults. Strabismus 2006;14:81–84.
  • Patel SS, Ogmen H, White JM et al. Neural network model of short-term horizontal disparity vergence dynamics. Vision Res 1997;37:1383–1399.
  • Morse SE, Jiang BC. Oculomotor function after virtual reality use differentiates symptomatic from asymptomatic individuals. Optom Vis Sci 1999;76:637–642.
  • Dusek W, Pierscionek BK, McClelland JF. A survey of visual function in an Austrian population of school-age children with reading and writing difficulties. BMC Ophthalmol 2010;10:16.
  • Scheiman M, Gallaway M, Ciner E. Divergence insufficiency: characteristics, diagnosis, and treatment. Am J Optom Physiol Opt 1986;63:425–431.
  • van Leeuwen AF, Collewijn H, Erkelens CJ. Dynamics of horizontal vergence movements: interaction with horizontal and vertical saccades and relation with monocular preferences. Vision Res 1998;38:3943–3954.
  • Gall R, Wick B, Bedell H. Vergence facility: establishing clinical utility. Optom Vis Sci 1998;75:731–742.

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