Visual Face Perception of Adults with Unilateral Cleft Lip and Palate in Comparison to Controls—An Eye-Tracking Study

Abstract

When perceiving a face with a unilateral cleft lip and palate, the observer's gaze is distracted to the nose and mouth area. Moreover, participants with a unilateral cleft lip and/or palate themselves focused greater attention on those features that are anomalous on their own faces in comparison to participants without a cleft lip and palate. Specifically, this different scanpath is reflected in the cumulative duration of the eye movements as well as in the initial facial scan pattern.

Visual perception of faces with unilateral and bilateral cleft lip and palate: An Eye‐Tracking Study

“…Meyer‐Marcotty et al . concluded that participants with UCLP and participants without CLP looked at faces of individuals with UCLP differently than they did unaffected faces.…”

“…The eye‐tracking method has been used to evaluate how faces with severe Class III malocclusion, unilateral coronal synostosis and unilateral CLP are perceived visually. However, no data are available for faces with BCLP.…”

“…They found that when faces with CLP were viewed, attention was directed to the mouth and nose region, with significantly more initial fixations on the mouth and longer fixations on the mouth and nose regions. The other study in which the eye movements of individuals with CLP were analysed along with healthy participants found that participants with CLP gazed at the nose for a longer period and at the eyes for a shorter period when they viewed faces of patients with UCLP and faces without an anomaly …”

Perception of children’s faces with unilateral coronal synostosis—an eye-tracking investigation

“…It measures both involuntary and voluntary eye movements and fixations. This may be especially useful in examining an individual's external perception of visible asymmetries and anomalies [11][12][13][14][15][16]. Using this technique has provided us with objective measuring tool, which we have used to determine the extent to which facial anomalies in children with unilateral coronal synostosis are noticeable, as well as the region of the face that attracts the most attention.…”

Eye Tracking System and Orthodontics: Review

“…Ayrıca, DDY'li gözlemcilerin DDY'si olan ya da olmayan fotoğraflara, DDY'si olmayan gözlemcilere kıyasla burun bölgesine daha uzun süre ve göz bölgesine daha kısa süre baktığı bildirilmiştir. 28 DDY'li hastaların burun estetiğini daha çok önemsediğini gösteren bu çalışmadan yola çıka-rak; bu hastaların tedavi planlaması yapılır iken yüzün orta üçlüsüne daha fazla dikkat etmenin yararlı olabileceği sonucuna varılabilmektedir.…”