Today's post is on the side effects of double-eyelid tape. Several companies make these strips, and the underlying mechanism is roughly similar to how a real crease forms.
When you apply the tape to the lid, the tape acts as the lower edge of an artificial crease. The lid skin folds over it on opening, and a temporary line appears. The problem is what happens with prolonged use. First, contact dermatitis is common. Once dermatitis develops, you can get blisters, and as those heal, the skin can scar and harden. Second, the skin laxity tends to worsen over time. The lid stretches further and the heaviness of the upper lid increases.
And not everyone responds to the tape. Patients with very thick eyelid skin often get nothing out of it. For them, an open incisional procedure is the only reliable way to set a permanent crease.
I generally recommend skipping the tape and the eyelid glue products. They do not actually create a real crease.