Hostname: page-component-586b7cd67f-rcrh6 Total loading time: 0 Render date: 2024-11-24T03:55:16.814Z Has data issue: false hasContentIssue false

Treatment of amblyopia as a function of age

Published online by Cambridge University Press:  16 April 2018

JONATHAN M. HOLMES*
Affiliation:
Department of Ophthalmology, Mayo Clinic, Rochester, Minnesota
DENNIS M. LEVI
Affiliation:
University of California, School of Optometry, Berkeley, California
*
*Address correspondence to: Jonathan M. Holmes, Department of Ophthalmology, Mayo Clinic, 200 First St SW, Rochester, MN 55905. E-mail: holmes.jonathan@mayo.edu

Abstract

Although historically, treatment of amblyopia has been recommended prior to closure of a critical window in visual development, the existence and duration of that critical window is currently unclear. Moreover, there is clear evidence, both from animal and human studies of deprivation amblyopia, that there are different critical windows for different visual functions and that monocular and binocular deprivation have different neural and behavioral consequences. In view of the spectrum of critical windows for different visual functions and for different types of amblyopia, combined with individual variability in these windows, treatment of amblyopia has been increasingly offered to older children and adults. Nevertheless, treatment beyond the age of 7 years tends to be, on average, less effective than in younger children, and the high degree of variability in treatment response suggests that age is only one of many factors determining treatment response. Newly emerging treatment modalities may hold promise for more effective treatment of amblyopia at older ages. Additional studies are needed to characterize amblyopia by using new and existing clinical tests, leading to improved clinical classification and better prediction of treatment response. Attention also needs to be directed toward characterizing and measuring the impact of amblyopia on the patients’ functional vision and health-related quality of life.

Type
Perspective
Copyright
Copyright © Cambridge University Press 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Anker, S., Atkinson, J., Braddick, O., Nardini, M. & Ehrlich, D. (2004). Non-cycloplegic refractive screening can identify infants whose visual outcome at 4 years is improved by spectacle correction. Strabismus 12, 227245.CrossRefGoogle ScholarPubMed
Atkinson, J., Braddick, O., Nardini, M. & Anker, S. (2007). Infant hyperopia: Detection, distribution, changes and correlates-outcomes from the Cambridge infant screening programs. Optometry and Vision Science 84, 8496.CrossRefGoogle ScholarPubMed
Baroncelli, L., Bonaccorsi, J., Milanese, M., Bonifacino, T., Giribaldi, F., Manno, I., Cenni, M.C., Berardi, N., Bonanno, G., Maffei, L. & Sale, A. (2012). Enriched experience and recovery from amblyopia in adult rats: Impact of motor, social and sensory components. Neuropharmacology 62, 23882397.CrossRefGoogle ScholarPubMed
Bavelier, D., Levi, D.M., Li, R.W., Dan, R.Y. & Hensch, T.K. (2010). Removing brakes on adult brain plasticity: From molecular to behavioral interventions. Journal of Neuroscience 30, 1496414971.CrossRefGoogle ScholarPubMed
Beck, R.W., Moke, P.S., Turpin, A.H., Ferris, F.L. 3rd, SanGiovanni, J.P., Johnson, C.A., Birch, E.E., Chandler, D.L., Cox, T.A., Blair, R.C. & Kraker, R.T. (2003). A computerized method of visual acuity testing: Adaptation of the early treatment of diabetic retinopathy study testing protocol. American Journal of Ophthalmology 135, 194205.CrossRefGoogle ScholarPubMed
BenEzra, O., Herzog, R., Cohen, E., Karshai, I. & BenEzra, D. (2007). Liquid crystal glasses: Feasibility and safety of a new modality for treating amblyopia. Archives of Ophthalmology 125, 580581.CrossRefGoogle ScholarPubMed
Bossi, M., Tailor, V.K., Anderson, E.J., Bex, P.J., Greenwood, J.A., Dahlmann-Noor, A. & Dakin, S.C. (2017). Binocular Therapy for Childhood Amblyopia Improves Vision Without Breaking Interocular Suppression. Invest Ophthalmol Vis Sci, 58(7), 30313043.CrossRefGoogle ScholarPubMed
Cotter, S.A., Chu, R.H., Chandler, D.L., Beck, R.W., Holmes, J.M., Rice, M.L., Hertle, R.W. & Moke, P.S., (2003). Reliability of the electronic early treatment diabetic retinopathy study testing protocol in children 7 to <13 years old. American Journal of Ophthalmology 136, 655661.CrossRefGoogle Scholar
Duffy, K.R. & Mitchell, D.E. (2013). Darkness alters maturation of visual cortex and promotes fast recovery from monocular deprivation. Current Biology 23, 382386.CrossRefGoogle ScholarPubMed
Fielder, A.R., Auld, R., Irwin, M., Cocker, K.D. & Moseley, M.J. (1994). Compliance monitoring in amblyopia therapy. Lancet 343, 547.CrossRefGoogle ScholarPubMed
Fong, M-f., Mitchell, D.E., Duffy, K.R. & Bear, M.F. (2016). Rapid recovery from the effects of early monocular deprivation is enabled by temporary inactivation of the retinas. Proceedings of the National Academy of Sciences of the United States of America 113, 1413914144.CrossRefGoogle ScholarPubMed
Greifzu, F., Pielecka-Fortuna, J., Kalogeraki, E., Krempler, K., Favaro, P.D., Schlüter, O.M. & Löwel, S. (2014). Environmental enrichment extends ocular dominance plasticity into adulthood and protects from stroke-induced impairments of plasticity. Proceedings of the National Academy of Sciences of the United States of America 111, 11501155.CrossRefGoogle ScholarPubMed
Hatt, S.R., Leske, D.A., Wernimont, S.M., Birch, E.E. & Holmes, J.M. (2017). Comparison of rating scales in the development of patient-reported outcome measures for children with eye disorders. Strabismus 6, 16.Google Scholar
He, H.Y., Ray, B., Dennis, K. & Quinlan, E.M. (2007). Experience-dependent recovery of vision following chronic deprivation amblyopia. Nature Neuroscience 10, 11341136.CrossRefGoogle ScholarPubMed
Held, R. (1965). Plasticity in sensory-motor systems. Scientific American 213, 8494.CrossRefGoogle ScholarPubMed
Hess, R.F. & Howell, E.R. (1977). The threshold contrast sensitivity function in strabismic amblyopia: Evidence for a two type classification. Vision Research 17, 10491055.CrossRefGoogle ScholarPubMed
Hess, R.F. & Thompson, B. (2015). Amblyopia and the binocular approach to its therapy. Vision Research 114, 416.CrossRefGoogle ScholarPubMed
Holmes, J.M., Beck, R.W., Repka, M.X., Leske, D.A., Kraker, R.T., Blair, R.C., Moke, P.S., Birch, E.E., Saunders, R.A., Hertle, R.W., Quinn, G.E., Simons, K.A., Miller, J.M. & Pediatric Eye Disease Investigator Group (2001). The amblyopia treatment study visual acuity testing protocol. Archives of Ophthalmology 119, 13451353.CrossRefGoogle ScholarPubMed
Holmes, J.M., Lazar, E.L., Melia, B.M., Astle, W.F., Dagi, L.R., Donahue, S.P., Frazier, M.G., Hertle, R.W., Repka, M.X., Quinn, G.E. & Weise, K.K. (2011). Effect of age on response to amblyopia treatment in children. Archives of Ophthalmology 129, 14511457.CrossRefGoogle ScholarPubMed
Holmes, J.M., Mahn, V.M., Lazar, E.L., Beck, R.W., Birch, E.E., Kraker, R.T., Crouch, E.R., Erzurum, S.A., Khuddus, N., Summers, A.I., Wallace, D.K. & Pediatric Eye Disease Investigator Group (2016). Effect of a binocular iPad game vs. part-time patching in children aged 5 to 12 years with amblyopia: A randomized clinical trial. JAMA Ophthalmology 134, 13911400.CrossRefGoogle ScholarPubMed
Hou, C., Kim, Y.J., Lai, X.J. & Verghese, P. (2016). Degraded attentional modulation of cortical neural populations in strabismic amblyopia. Journal of Vision 16, 16.CrossRefGoogle ScholarPubMed
Kelly, K.R., Jost, R.M., Dao, L., Beauchamp, C.L., Leffler, J.N. & Birch, E.E. (2016). A randomized trial of binocular ipad game vs. patching for treatment of amblyopia in children. JAMA Ophthalmology 134, 14021408.CrossRefGoogle ScholarPubMed
Levi, D.M. (2012). Prentice award lecture 2011: Removing the brakes on plasticity in the amblyopic brain. Optometry and Vision Science 89, 827838.CrossRefGoogle ScholarPubMed
Levi, D.M. & Harwerth, R.S. (1977). Spatio-temporal interactions in anisometropic and strabismic amblyopia. Investigative Ophthalmology & Visual Science 16, 9095.Google ScholarPubMed
Levi, D.M., Knill, D.C. & Bavelier, D. (2015). Stereopsis and amblyopia: A mini-review. Vision Research 114, 1730.CrossRefGoogle ScholarPubMed
Lewis, T.L. & Maurer, D. (2005). Multiple sensitive periods in human visual development: Evidence from visually deprived children. Developmental Psychobiology 46, 163e183.CrossRefGoogle ScholarPubMed
Li, J., Thompson, B., Deng, D., Chan, L.Y., Yu, M. & Hess, R.F. (2013). Dichoptic training enables the adult amblyopic brain to learn. Current Biology 23, R308R309.CrossRefGoogle ScholarPubMed
Li, S.L., Jost, R.M., Morale, S.E., Stager, D.R., Dao, L., Stager, D. & Birch, E.E. (2014). A binocular iPad treatment for amblyopic children. Eye 28, 12461253.CrossRefGoogle ScholarPubMed
Li, S.L., Reynaud, A., Hess, R.F., Wang, Y.Z., Jost, R.M., Morale, S.E., De La Cruz, A., Dao, L., Stager, D. Jr. & Birch, E.E. (2015). Dichoptic movie viewing treats childhood amblyopia. Journal of AAPOS 19, 401405.CrossRefGoogle ScholarPubMed
Liebermann, L., Leske, D.A., Castañeda, Y.S., Hatt, S.R., Wernimont, S.M., Cheng, C.S., Birch, E.E. & Holmes, J.M. (2016). Childhood esotropia: Child and parent concerns. Journal of AAPOS 20, 295300.CrossRefGoogle ScholarPubMed
Loudon, S.E., Fronius, M., Looman, C.W., Awan, M., Simonsz, B., van der Maas, P.J. & Simonsz, H.J. (2006). Predictors and a remedy for noncompliance with amblyopia therapy in children measured with the occlusion dose monitor. Investigative Ophthalmology & Visual Science 47, 43934400.CrossRefGoogle Scholar
Maya Vetencourt, J.F., Sale, A., Viegi, A., Baroncelli, L., De Pasquale, R., O’Leary, O.F., Castren, E. & Maffei, L. (2008). The antidepressant fluoxetine restores plasticity in the adult visual cortex. Science 320, 385388.CrossRefGoogle ScholarPubMed
Morishita, H., Miwa, J.M., Heintz, N. & Hensch, T.K. (2010). Lynx1, a cholinergic brake, limits plasticity in adult visual cortex. Science 330, 12381240.CrossRefGoogle ScholarPubMed
Moseley, M.J., Neufeld, M., McCarry, B., Charnock, A., McNamara, R., Rice, T. & Fielder, A. (2002). Remediation of refractive amblyopia by optical correction alone. Ophthalmic and Physiological Optics 22, 296299.CrossRefGoogle ScholarPubMed
Moseley, M.J., Fielder, A.R. & Stewart, C.S. (2009). The optical treatment of amblyopia. Optometry and Vision Science 86, 629633.CrossRefGoogle ScholarPubMed
Pediatric Eye Disease Investigator Group (2002). A randomized trial of atropine vs. patching for treatment of moderate amblyopia in children. Archives of Ophthalmology 120, 268278.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2003a). Impact of patching and atropine treatment on the child and family in the amblyopia treatment study. Archives of Ophthalmology 121, 16251632.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2003b). A randomized trial of patching regimens for treatment of moderate amblyopia in children. Archives of Ophthalmology 121, 603611.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2003c). A randomized trial of prescribed patching regimens for treatment of severe amblyopia in children. Ophthalmology 110, 20752087.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2004). A randomized trial of atropine regimens for treatment of moderate amblyopia in children. Ophthalmology 111, 20762085.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2005). Randomized trial of treatment of amblyopia in children aged 7 to 17 years. Archives of Ophthalmology 123, 437447.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2006a). A randomized trial to evaluate 2 h of daily patching for strabismic and anisometropic amblyopia in children. Ophthalmology 113, 904912.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2006b). Treatment of anisometropic amblyopia in children with refractive correction. Ophthalmology 113, 895903.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2008a). Patching vs. atropine to treat amblyopia in children aged 7 to 12 years: A randomized trial. Archives of Ophthalmology 126, 16341642.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2008b). A randomized trial of near versus distance activities while patching for amblyopia in children aged 3 to less than 7 years. Ophthalmology 115, 20712078.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2009). Pharmacological plus optical penalization treatment for amblyopia: Results of a randomized trial. Archives of Ophthalmology 127, 2230.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2010). A randomized trial comparing Bangerter filters and patching for the treatment of moderate amblyopia in children. Ophthalmology 117, 9981004.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2012). Optical treatment of strabismic and combined strabismic-anisometropic amblyopia. Ophthalmology 119, 150158.CrossRefGoogle Scholar
Pediatric Eye Disease Investigator Group (2015). A randomized trial of levodopa as treatment for residual amblyopia in older children. Ophthalmology 122, 874881.CrossRefGoogle Scholar
Popple, A.V. & Levi, D.M. (2008). The attentional blink in amblyopia. Journal of Vision 8, 1219.CrossRefGoogle ScholarPubMed
Rokem, A. & Silver, M.A. (2010). Cholinergic enhancement augments magnitude and specificity of visual perceptual learning in healthy humans. Current Biology 20, 17231728.CrossRefGoogle ScholarPubMed
Roth, M.M., Dahmen, J.C., Muir, D.R., Imhof, F., Martini, F.J. & Hofer, S.B. (2016). Thalamic nuclei convey diverse contextual information to layer 1 of visual cortex. Nature Neuroscience 19, 299307.CrossRefGoogle ScholarPubMed
Sale, A., Maya Vetencourt, J.F., Medini, P., Cenni, M.C., Baroncelli, L., De Pasquale, R. & Maffei, L. (2007). Environmental enrichment in adulthood promotes amblyopia recovery through a reduction of intracortical inhibition. Nature Neuroscience 10, 679681.CrossRefGoogle ScholarPubMed
Sharma, V., Levi, D.M. & Klein, S.A. (2000). Undercounting features and missing features: Evidence for a high-level deficit in strabismic amblyopia. Nature Neuroscience 3, 496501.CrossRefGoogle ScholarPubMed
Silingardi, D., Scali, M., Belluomini, G. & Pizzorusso, T. (2010). Epigenetic treatments of adult rats promote recovery from visual acuity deficits induced by long-term monocular deprivation. European Journal of Neuroscience 31, 21852192.CrossRefGoogle ScholarPubMed
Stewart, C.E., Moseley, M.J. & Fielder, A.F. (2003). Defining and measuring treatment outcome in unilateral amblyopia. British Journal of Ophthalmology 87, 12291231.CrossRefGoogle ScholarPubMed
Stewart, C.E., Moseley, M.J., Stephens, D.A., Fielder, A.R. & MOTAS Cooperative, (2004). Treatment dose-response in amblyopia therapy: The monitored occlusion treatment of amblyopia study (MOTAS). Investigative Ophthalmology & Visual Science 45, 30483054.CrossRefGoogle ScholarPubMed
Stewart, C.E., Stephens, D.A., Fielder, A.R., Moseley, M.J. & ROTAS Cooperative, (2007). Objectively monitored patching regimens for treatment of amblyopia: Randomised trial. British Medical Journal 335, 707713.CrossRefGoogle ScholarPubMed
Stryker, M.P. (2014). A neural circuit that controls cortical state, plasticity, and the gain of sensory responses in mouse. Cold Spring Harbor Symposia on Quantitative Biology 79, 19.CrossRefGoogle Scholar
Tarczy-Hornoch, K., Varma, R., Cotter, S.A., McKean-Cowdin, R., Lin, J.H., Borchert, M.S., Torres, M., Wen, G., Azen, S.P., Tielsch, J.M., Friedman, D.S., Repka, M.X., Katz, J., Ibironke, J. & Giordano, L. (2011). Risk factors for decreased visual acuity in preschool children: The multi-ethnic pediatric eye disease and baltimore pediatric eye disease studies. Ophthalmology 118, 22622273.CrossRefGoogle ScholarPubMed
Thompson, B., Mansouri, B., Koski, L. & Hess, R.F. (2008). Brain plasticity in the adult: Modulation of function in amblyopia with rTMS. Current Biology 18, 10671071.CrossRefGoogle ScholarPubMed
Tsirlin, I.L., Colpa, L., Goltz, H.C. & Wong, A.M. (2015). Behavioral training as new treatment for adult amblyopia: A meta-analysis and systematic review. Investigative Ophthalmology & Visual Science 56, 40614075.CrossRefGoogle ScholarPubMed
Vedamurthy, I., Nahum, M., Huang, S., Zheng, F., Bayliss, J., Bavelier, D. & Levi, D.M. (2015). A dichoptic custom-made action video game as a treatment for adult amblyopia. Vision Research 114, 173187.CrossRefGoogle ScholarPubMed
Wang, L., Neely, D., Galli, J., Schleisser, J., Graves, A., Damarjian, T., Kovarik, J., Bowsher, J., Smith, H., Donaldson, D., Haider, K., Roberts, G., Sprunger, D. & Plager, D. (2016). A randomized clinical trial of intermittent occlusion therapy liquid crystal glasses versus traditional patching for treatment of moderate unilateral amblyopia. Journal of AAPOS 20, 326331.CrossRefGoogle ScholarPubMed