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Clinicopathologic Reports, Case Reports, and Small Case Series |

Glued Patches for Children Resistant to Amblyopia Occlusion Therapy FREE

Shehla Rubab, MD, MCPS, FCPS (Pak); Dana French, BSc, OC(C); Alex V. Levin, MD, MHSc, FRCSC
[+] Author Affiliations

Section Editor: W. Richard Green, MD

More Author Information
Arch Ophthalmol. 2008;126(1):133-134. doi:10.1001/archophthalmol.2007.27.
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Published online

Occlusion of the healthy eye is the mainstay of amblyopia treatment. Occlusion therapy has practical limitations; many children actively resist treatment and some parents are marginally compliant with instructions.1 Even when parents are knowledgeable about amblyopia and patching, 22% report poor compliance.2 Strategies such as atropine, hand socks, inflatable water wings, benzoin tincture, occluder contact lenses, occlusive dressings, and sewing the patch to the brow and cheeks of noncompliant children have been used to improve compliance with patching.3

REPORT OF CASES

We conducted a pilot study of cyanoacrylate glue applied to a patch to increase its adhesiveness so that the child could not easily remove it. We used Dermabond Glue (Ethicon Inc, Johnson & Johnson Company, Sommerville, New Jersey) and Opticlude Junior patches (3M Company, St Paul, Minnesota). Before applying the patches to humans, their safety and adhesiveness was assessed by gluing them to the surface of fresh vegetables kept at room temperature for 1 week to see if there were any adverse chemical reactions between the glues and patch and between the glued patch and the vegetable surface. We observed no adverse effects. The glued patches were then applied to the upper arm of 4 adult volunteers (including the authors) for 1 week. Only one woman developed mild erythema, which resolved without treatment.

After approval by the research ethics board at The Hospital for Sick Children, Toronto, Canada, we recruited 5 children with monocular amblyopia due to strabismus, anisometropia, aphakia, and/or corneal opacity in whom all attempts of occlusion therapy had failed. Case details and patching are summarized in Table 1 and Table 2. Best corrected visual acuity was measured in both eyes and a complete eye examination was performed at the start of the study. Informed consent was obtained.

Table Graphic Jump LocationTable 1. Demographics and Occlusion History
Table Graphic Jump LocationTable 2. Full-time Glued Patching and Effect on Vision

The glue was applied to the adhesive part of the patch. The patch was then applied over the good eye of the child before the glue dried. The children were allowed to go about their daily activities, including bathing and washing their faces. They wore the patch for 1 week. If any of the children wore the patch for less time, either because the patch spontaneously peeled off or was peeled off by the child, the time in hours was recorded. After 1 week, the glued patch was removed in the clinic quite easily and with little pain, as the patch was often partially detached by that time. We applied a fresh patch to the children after visual acuity testing in both eyes and external eye examination. The procedure was repeated for 4 consecutive weeks. With the use of glued patches, compliance improved gradually in all cases. Patient 3 wore the patch for 2 hours on 4 consecutive days at the end of the study. Patient 5 wore the patch for 6 days in the first week of the study and 7 days in the second week. Although our study was not designed to evaluate efficacy of amblyopia treatment using glued patches, improvement in visual acuity was noted in 2 cases. Three children developed mild erythema where the skin was in contact with the glue. In all these cases, the erythema resolved without any treatment in less than 2 days. None of the children developed excoriation or abrasion of the skin where the patch was applied.

COMMENT

Occlusion therapy is difficult and tedious for parents. Most studies report that at least one-third of families are unable to comply with treatment.4 Children aged 1 to 3 years may peel off their patches. With the exception of visual compromise brought on by using only the amblyopic eye, glued patches do not restrict the activity of the child in any way, like mittens or elbow restraints can.5 Occlusive black contact lenses put the healthy eye at some risk for infection or abrasion. There is no potential physical risk to the healthy eye with glued patches provided that care is taken to avoid allowing the glue to contact the ocular surface or eyelids. Should any problem arise with the use of cyanoacrylate-glued patches, including intolerance by the child or family, it can be easily removed with the help of white petroleum jelly. We recommend that the eyelids be closed before affixing the glued patch.

This was a pilot study with a small sample size to investigate the potential use of a novel method of increasing patching compliance. To better understand the efficacy, risks, and suitability of glued patches, we recommend studies with larger numbers of patients and various types of amblyopia.

ARTICLE INFORMATION

Correspondence: Dr Levin, Department of Ophthalmology, M158, Hospital for Sick Children, 555 University Ave, Toronto, ON M5G 1X8, Canada (alex.levin@sickkids.ca).

Author Contributions: Dr Levin had full access to the original data and takes responsibility for the integrity of the data and the accuracy of the data analysis.

Financial Disclosure: None reported.

Funding/Support: This study was supported in part by Brandan's Eye Research Fund.

Previous Presentations: This study was presented in part at the 45th Annual Research Day, Department of Ophthalmology, University of Toronto, May 23, 2003, and at the 1st International Pediatric Ophthalmology & Strabismus Conference, Al-Shifa Trust Eye Hospital; December 10, 2005; Rawalpindi, Pakistan.

Additional Contributions: J. Raymond Buncic, MD, FRCSC, referred 1 patient and David Smith, MD, FRCSC, referred 2.

REFERENCES

Woodruff  GHiscox  FThompson  JRSmith  LK Factors affecting the outcome of children treated for amblyopia. Eye 1994;8627- 631
PubMed Link to Article
Newsham  D Parental non-concordance with occlusion therapy. Br J Ophthalmol 2000;84 (9) 957- 962
PubMed Link to Article
Arnold  RWLimstrom  SAArmitage  MD Shield occluder.  Poster presented at: American Association for Pediatric Ophthalmology and Strabismus Annual Meeting March 22-24, 2002 Seattle, WA
Blackwell  B The drug defaulters. Clin Pharmacol Ther 1972;13 (6) 841- 848
PubMed
Hacker  HDO’Hara  M Floating devices to facilitate amblyopia therapy. Am J Ophthalmol 1991;111 (1) 110- 111
PubMed

Figures

Tables

Table Graphic Jump LocationTable 1. Demographics and Occlusion History
Table Graphic Jump LocationTable 2. Full-time Glued Patching and Effect on Vision

References

Woodruff  GHiscox  FThompson  JRSmith  LK Factors affecting the outcome of children treated for amblyopia. Eye 1994;8627- 631
PubMed Link to Article
Newsham  D Parental non-concordance with occlusion therapy. Br J Ophthalmol 2000;84 (9) 957- 962
PubMed Link to Article
Arnold  RWLimstrom  SAArmitage  MD Shield occluder.  Poster presented at: American Association for Pediatric Ophthalmology and Strabismus Annual Meeting March 22-24, 2002 Seattle, WA
Blackwell  B The drug defaulters. Clin Pharmacol Ther 1972;13 (6) 841- 848
PubMed
Hacker  HDO’Hara  M Floating devices to facilitate amblyopia therapy. Am J Ophthalmol 1991;111 (1) 110- 111
PubMed

Correspondence

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