The palpebral fissure is the elliptic space between the medial and lateral canthi of the two open eyelids. In simple terms, it is the opening between the eyelids. In adult humans, this measures about 10 mm vertically and 30 mm horizontally.

Jul 11, 2019 · The palpebral fissure vertical height (PFH) is measured between the margin of the lower eyelid to the margin of the upper eyelid. The normal palpebral fissure height is 8-11 mm . This is a key measurement that you need when assessing for ptosis.

Jan 22, 2025 · The palpebral fissure refers to the elliptical opening between the upper and lower eyelids. It is the visible space of the eye that you see when the eyes are open. The shape and size of the palpebral fissure can vary between individuals due to genetic, developmental, or medical factors.

Nov 11, 2024 · Palpebral Fissure of Eyelids: The elliptical space between the eyelids, which is approximately 28-30 mm horizontally and 9-11 mm vertically in adults. The alignment of the fissure can vary: some have a slight upward tilt (mongoloid slant), while others may tilt slightly downward (antimongoloid slant).

Palpebral fissures are described as up-slanted when the outer canthus is positioned higher than usual, down-slanted when the outer canthus is lower than usual. Up-slanted palpebral fissures may be associated with microcephaly.

The palpebral fissure is the elliptic space between the medial and lateral canthi of the two open lids. In adults, this measures about 10mm vertically and 30 mm horizontally.

Palpebral fissure length: distance between the inner and outer canthi of the eye; the actual palpebral fissure encompasses the exposed area between the top and bottom eyelids. The adult palpebral fissure is typically about 3 cm horizontally and 0.8 to 1.1 cm vertically.

Oct 30, 2023 · The eye has two palpebral fissures, horizontal and vertical, which stand for the normal exposed area between the superior and inferior eyelids. The elliptical opening between them is known as the palpebral aperture.

Apr 2, 2025 · The meaning of PALPEBRAL FISSURE is the space between the margins of the eyelids —called also rima palpebrarum.

Jul 11, 2019 · The palpebral fissure refers to the normal exposed area between upper and lower eyelids. It is measured between the margin of the lower eyelid to the margin of the upper eyelid. The normal palpebral fissure height (sometimes abbreviated PFH ) is 8-11 mm .