Normal eyelid measurements vary with age and [ethnicity](#):
- Palpebral fissure length: Approximately 20-30 mm in newborns, increasing to 25-35 mm in older children. - MRD1: Typically 3-5 mm. - MRD2: Generally 5-6 mm. - Intercanthal distance: Widens with age, from about 15 mm in newborns to 30-35 mm in older children. - Vertical palpebral fissure height: Around 8-11 mm.
These ranges can help in assessing whether a child's eyelid measurements fall within normal limits.
