Application of 4+ 1 photography in determining the end point of double eyelid surgery

Abstract

Objective \nTo explore the practicability and reproducibility of judgment method and assessment indexes for the end point of double eyelid surgery using 4+ 1 photography in supine position. \n \n \nMethods \nFrom 2017 October to 2018 October, 158 patients were included and randomly divided into 2 groups. Photos were taken by 4 + 1 photography in supine position of 79 patients, while other 79 patients in control group were evaluated by traditional observation. By 4+ 1 photography in supine position, the surgeon stood at the head side of the patient, taking photos with eyes movement: looking straight forward, looking up, looking downward and eye-closed. It was to observe the upper eyelid creases, upper and lower tissues of double eyelid creases, and upper and lower eyelid margo palpebrae. In addition, the surgeon looked from patient′s feet to observe the indexes such as upper margo palpebrae, to make a decision whether the surgery could finish. In control group, the surgeon observed the upper eyelid creases, upper and lower tissues of double eyelid creases and upper and lower eyelid margo palpebrae. The patient has to sit if necessary. \n \n \nResults \nAll 158 patients were performed double eyelid surgery successfully. Average times of valuating end point was 1.20 by 4+ 1 Photography in supine position, and 1.53 in control group. The operation time of 4+ 1 photography group is (151.65±21.58) s, and control group were (241.53±33.53) s. The satisfaction level was increased to 89.87% in 4+ 1 photography group, compared to 78.48% in control group. \n \n \nConclusions \nThe 4+ 1 Photography method is simple and easy to practice. The observation indexes are accurate and comprehensive. It is useful in determining the end point of double eyelid plasty in supine position. \n \n \nKey words: \nDouble eyelid surgery;\xa0Photography;\xa0End point