Study of Eye Shape and 3D Facial Features in Healthy Young Adults Aged 21 to 25 Comparing Nearsighted, Farsighted, and Normal Vision Groups

What this Trial Is About

Researchers are investigating the relationship between the size and shape of the eye and the three-dimensional shape of the face in healthy young adults aged 21 to 25 years. The study aims to see if specific eye measurements relate to facial features after growth is complete and whether these relationships differ among people who are nearsighted, farsighted, or have normal vision. This observational study includes 120 participants divided into three refractive groups with balanced sex representation, all sharing the same ethnic background to reduce variability. Participants will undergo non-invasive eye examinations including measurements of visual acuity, refraction, and detailed eye biometry using the IOLMaster 700 device. Eye measurements include axial length, corneal curvature, anterior chamber depth, lens thickness, and corneal diameter. Additionally, three-dimensional facial imaging will be performed using a video-based photogrammetry system that creates detailed 3D facial models without radiation exposure. Facial landmarks and dimensions of various facial regions will be measured and analyzed. Participants involvement includes ophthalmologic exams and 3D facial imaging conducted in a standardized manner by the same investigator to ensure consistency. Researchers will analyze correlations between eye measurements and facial features, comparing results across refractive groups. The primary outcome is axial length assessed once during the eye exam. Data will be securely stored and anonymized, with no additional risks beyond a routine eye exam expected. The study is approved by ethics committees and participation is voluntary with informed consent required.

Morphological Characteristics of the Maxillomandibular Region in a 3D Representation and the Refractive Status of the Eye