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Amblyopia.
Success rates of Amblyopia treatment may decline with increasing age (Scheiman et al., 2005; Mohan, Saroha, & Sharma, 2004) [A:I]. However, all children should be considered for treatment of Amblyopia regardless of age although the difficulty of treatment for both the patient and caregiver should not be underestimated (Dixon-Woods, Awan, & Gottlob, 2006; Yang & Lambert, 1995; Koklanis, Abel, & Aroni, 2006). The prognosis for attaining and maintaining essentially normal vision in an amblyopic eye depends on many factors, including the age of the patient at detection, the cause and severity of Amblyopia, the history of previous treatment (Scheiman et al., 2005), the duration of Amblyopia, and compliance with treatment.
MedlinePlus
Medical Encyclopedia: Amblyopia
The primary treatment involves patching the normal eye to force use of the non-preferred, amblyopic eye. Sometimes, drops are used to blur the vision of the normal eye instead of putting a patch on it. Younger patients have more potential for the visual system of the brain to develop, and thus better potential for improved vision when Amblyopia is treated.
Facts About Amblyopia [NEI Health Information]
This article reports successful therapy for anisometropic and strabismic Amblyopia initiated after age 7 years. A consecutive series of 36 compliant children older than 7 years (range, 7.0 to 10.3 years; mean, 8.2 years) at initiation of Amblyopia therapy for anisometropic (19 patients; mean age, 8.3 years), strabismic (9 patients; mean age, 8.0 years), or anisometropic and strabismic (8 patients; mean age, 8.0 years) Amblyopia was studied. Initial (worst) visual acuities were between 20/ 50 and 20/ 400 (log geometric mean, -0.83 [antilog, 20/ 134] for all patients; -0.88 [antilog, 20/ 151] for anisometropic patients; -0.70 [antilog, 20/ 100] for strabismic patients; and -0.88 [antilog, 20/ 151] for anisometropic and strabismic patients). Initial (worst) binocularity was absent or reduced in all cases. Therapy consisted of (1) full-time standard occlusion (21 patients; mean age, 8.0 years), (2) total penalization (7 patients; mean age, 7.8 years), or (3) full-time occlusive contact lenses (8 patients; mean age, 8.8 years). Final (best) visual acuities were between 20/ 20 and 20/ 30 for all 36 patients. Final (best) binocularity was maintained or improved for 22 (61 percent) of 36 patients, including 16 anisometropic patients (84 percent), 2 strabismic patients (22 percent), and 4 anisometropic and strabismic patients (50 percent). Given compliance, therapy for anisometropic and strabismic Amblyopia can be successful even if initiated after age 7 years.
State of Illinois - Patricia Blagojevich, First Lady
One of the most serious and most common threats to children’s vision is Amblyopia, also known as “lazy eye.” Amblyopia affects 2 to 3 of every 100 children. When detected early, Amblyopia can usually be treated successfully. But without treatment, the condition can cause permanent vision loss.
Amblyopia.
Success rates of Amblyopia treatment may decline with increasing age (Scheiman et al., 2005; Mohan, Saroha, & Sharma, 2004) [A:I]. However, all children should be considered for treatment of Amblyopia regardless of age although the difficulty of treatment for both the patient and caregiver should not be underestimated (Dixon-Woods, Awan, & Gottlob, 2006; Yang & Lambert, 1995; Koklanis, Abel, & Aroni, 2006). The prognosis for attaining and maintaining essentially normal vision in an amblyopic eye depends on many factors, including the age of the patient at detection, the cause and severity of Amblyopia, the history of previous treatment (Scheiman et al., 2005), the duration of Amblyopia, and compliance with treatment.
healthfinder.gov - Amblyopia
Amblyopia, commonly known as lazy eye, is the eye condition noted by reduced vision not correctable by glasses or contact lenses and is not due to any eye disease. This document provides information a ... Details >
Amblyopia Brochure
One of the most serious and most common threats to children's
vision is Amblyopia, also known as "lazy eye." Amblyopia
affects 2 to 3 of every 100 children. When detected
early, Amblyopia can usually be treated successfully. But without
treatment, the condition can cause permanent vision loss.
NIH - Amblyopia
Amblyopia- Resouce Guide
Amblyopia Resource Guide [NEI Health Information]
Amblyopia is the medical term used when the vision in one of the eyes is reduced because the eye and the brain are not working together properly. The eye itself looks normal, but it is not being used normally because the brain is favoring the other eye. This condition is also sometimes called lazy eye.
Publications from the National Eye Institute
Describes the causes, symptoms, diagnosis, and treatment for Amblyopia. Provides sources for additional information. A Spanish-language version is also available . Only Available Online .
NIH News Release--Eye Drops to Treat Childhood Eye Disorder Work As Well as Patching the Eye--03/13/2002
Treatment for Amblyopia is most effective when started in young children less than seven years old. Response to treatment in older children is much less effective. Most eye care professionals treat Amblyopia by placing an opaque adhesive patch, or "eye bandage," on the skin to cover the unaffected eye. This forces the child to use the eye with Amblyopia, which stimulates vision in the eye with Amblyopia and helps the part of the brain that manages vision to develop more completely. However, many children do not like the appearance of the eye patch and the accompanying social and psychological stigma and will not fully cooperate, which can lead to treatment failure. Also, patching forces a child to use an eye that has poor vision, often making compliance difficult for active children. Unless it is successfully treated in early childhood, Amblyopia usually persists into adulthood, and is the most common cause of monocular (one eye) visual impairment among children and young and middle-aged adults. Consequently, it is crucial for children to comply with treatment.
Care of the patient with amblyopia.
Treatment should be directed toward the two primary etiologies of Amblyopia: form deprivation and binocular inhibition. Amblyopia therapy effectively restores normal or near-normal visual function by eliminating eccentric fixation and/ or developing more extensive synaptic input to the visual cortex. It improves monocular deficits of visual acuity, monocular fixation, accommodation, and ocular motility. The final step in Amblyopia therapy, if possible, is to develop normal binocular vision. The establishment of binocular vision eliminates or significantly reduces the underlying binocular inhibition in unilateral Amblyopia, which increases the probability of maintaining visual acuity improvements.
Search of: "Amblyopia" - List Results - ClinicalTrials.gov
Trial Comparing Atropine to Atropine Plus a Plano Lens for the Sound Eye for Amblyopia in Children 3 to <7 Years Old
PHOTOREFRACTIVE KERATECTOMY FOR ANISOMETROPIC AMBLYOPIA IN CHILDREN
Most children treated with PRK in our study enjoyed mild to moderate improvement in uncorrected and best spectacle-corrected visual acuity at 12 months and 24 months after PRK, despite many having severe Amblyopia at presentation. When compared with the noncompliant control group, my PRK group experienced a statistically significant improvement in best-corrected visual acuity. This is the first study of refractive surgery in children that has compared visual outcomes to a control group of comparable children. Efficacy has been demonstrated even in the face of severe preexisting Amblyopia in many of the study children. We feel that if refractive surgery were performed at an earlier age, before severe Amblyopia has been established, long-term visual outcomes might improve more than was seen in this study group. As an example, the youngest child in this study, who preoperatively at age 2 years could be assessed only by comparing fixation behavior, had a best-corrected visual acuity of 20/ 50 at the 12-month and the 24-month visits, despite his continued postoperative lack of compliance with spectacle use and Amblyopia therapy. Compared with our noncom-pliant control group, his vision was markedly better than what we might have anticipated otherwise ( Table 10 ). For example, there were two noncompliant control patients with spherical equivalent refractive errors on either side of his spherical equivalent refractive error of 13.75 diopters. One, with a spherical equivalent refractive error of 10.50 diopters, had no visual acuity improvement with a pretreatment and posttreatment visual acuity of 20/ 200. The other child, with a spherical equivalent refractive error of 17.00 diopters, also had no change in visual acuity with a pretreatment and posttreatment visual acuity of 20/ 300.
Amblyopia : Vision and Hearing Screening : School Health : NYC DOHMH
Yes! Treatment can improve vision and prevent blindness for most children but only if the problem is found early enough. The sooner the treatment, the better the chance a child will get vision back in the weaker eye. By age 8 or 9 years, a child s visual development is complete, and it may be too late to treat Amblyopia successfully.
healthfinder.gov — Amblyopia and Strabismus
This information fact sheet describes two vision conditions called Amblyopia and strabismus. Amblyopia is the failure of one eye, although apparently healthy, to develop normal vision whereas strabismus is a term used to describe eyes that are not straight and parallel. The fact sheet offers background information on these conditions and discusses treatment options.
Screening for Visual Impairment in Children Younger than Age 5 Years: Recommendation Statement
has reported that intensive screening performed 6 times between ages 8 and 37 months (using the cover test, Cardiff Cards, Kay Picture test, and HOTV letters by an eye professional) led to decreased prevalence of Amblyopia and improved visual acuity compared with a 1-time visual screening at age 37 months (using Kays Picture test and HOTV letters). Any child failing a screening test was referred to the hospital eye service for further testing and treatment. Compared with the group screened once at age 37 months, the intensively-screened group had a significantly lower prevalence of severe Amblyopia at age 7.5 years (Amblyopia B prevalence = 0.6 percent vs 1.8 percent) and a lower prevalence of residual Amblyopia after treatment (7.5 percent vs 25 percent).
NIH News Release--Attachment to Eye Drops to Treat Childhood Eye Disorder Work As Well as Patching the Eye--03/13/2002
Prior to this study, a few small studies had suggested that atropine eye drops might be useful for treating mild to moderate degrees of Amblyopia. If this were true, atropine drug therapy might be preferred as an initial treatment for many children with Amblyopia, since it appears to be more readily accepted by the children and their parents. However, the use of atropine as a primary therapy for Amblyopia had gained only limited use among pediatric ophthalmologists. A 1997 survey by the Pediatric Eye Disease Investigator Group (PEDIG) found that only three percent of eye care professionals prescribed atropine eye drops as a primary treatment of Amblyopia, while 97 percent preferred patching. A definitive study to compare the outcomes from occlusion therapy and drug therapy was justified to determine if new practice guidelines for treatment of Amblyopia were needed.
Table 1. RCTs of Amblyopia Screening in Children Younger than Age 5 Years Published Since 1999
Intensive group yielded more children with Amblyopia (1.6% vs 0.5%, P 0.01) and was more specific than the control group (4.5% false positives vs 7.5% for controls, P 0.01); cover test with either photorefraction or acuity testing at 37 mos provided the best sensitivity and specificity: 82%-84% sensitivity, 97%-98% specificity, 63%-73% PPV, 99% NPV
Tobacco amblyopia.
Tobacco Amblyopia.
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