Light Transmission and Preference of Eye Patches for Occlusion Treatment

Hwan Heo, Jung Won Park and Sang Woo Park

PLOS ONE, 2013, vol. 8, issue 6, 1-5

Abstract: Purpose: To investigate light transmission and preference for six eye patches for occlusion therapy. Methods: Six patches were examined, including; Ortopad Fun Pack, Ortopad Flesh, Kawamoto A-1, Kawamoto A-2, 3M Opticlude, and Everade Eye Guard. The size and the presence of a light blocking pad of patches were investigated. The amount of light transmitted through the patches was evaluated, using a digital light meter and a model eye, in three different environments; indoors with fluorescent light, outdoors on a sunny day, and strong light from illuminator. After patching the normal eye, the flash visual evoked potential (VEP) was measured. Thirty patients with amblyopia or horizontal strabismus, who received occlusion therapy as initial treatment, were included. After using all six patches, patients completed a 7-item questionnaire regarding the patch preference for size, color and shape, adhesive power, pain with removal, skin irritation after removing patch, parent’s preference and overall opinion. Results: All patches had a light-blocking pad, except the 3M Nexcare. Ortopad had the strongest light blocking power in the three environments, and the 3M Nexcare had the weakest power. In flash VEP, Ortopad and Kawamoto patches showed flat, but 3M Nexcare and Everade Eye Guard showed normal response. There were significant preferential differences among the patches in all the items of the questionnaire (P

Date: 2013
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0068079

DOI: 10.1371/journal.pone.0068079

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