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The fissure may be increased in vertical height in Graves' disease, which is manifested as Dalrymple's sign. It is seen in disorders such as cri-du-chat syndrome. In animal studies using four times the therapeutic concentration of the ophthalmic solution latanoprost, the size of the palpebral fissure can be increased. The condition is reversible.
Blepharophimosis is a congenital anomaly in which the eyelids are underdeveloped such that they cannot open as far as usual and permanently cover part of the eyes. Both the vertical and horizontal palpebral fissures (eyelid openings) are shortened; the eyes also appear spaced more widely apart as a result, known as telecanthus.
The first case was reported in 1989 by Wiedemann and colleagues which reported a Caucasian boy with pre- and postnatal growth deficiency, psychomotor delay, and a round and flat face, short nose, widely spaced eyes, long philtrum, short palpebral fissures, low-set ears, and high-arched palate.
Dalrymple's sign is a widened palpebral (eyelid) opening, or eyelid spasm, seen in thyrotoxicosis (as seen in Graves' disease, exophthalmic goitre and other hyperthyroid conditions), causing abnormal wideness of the palpebral fissure.
Al-Gazali-Donnai-Mueller syndrome, also known as Hirschsprung's disease, hypoplastic nails, and minor dysmorphic features syndrome [1] is a rare and deadly genetic disorder which is characterized by Hirschsprung's disease, nail and distal limb hypoplasia, flat facies, upslanting palpebral fissures, narrow philtrum, high palate, micrognathia and low-set ears.
The canthus (pl.: canthi, palpebral commissures) is either corner of the eye where the upper and lower eyelids meet. [1] More specifically, the inner and outer canthi are, respectively, the medial and lateral ends/angles of the palpebral fissure. The bicanthal plane is the transversal plane linking both canthi and defines the upper boundary of ...
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Small palpebral fissures: Eye width decreases with increased prenatal alcohol exposure. Measurement of FAS facial features uses criteria developed by the University of Washington . The lip and philtrum are measured by a trained physician with the Lip-Philtrum Guide, [ 85 ] a five-point Likert scale with representative photographs of lip and ...