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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.
Kaufman oculocerebrofacial syndrome, also known as blepharophimosis-ptosis-intellectual disability syndrome, is an extremely rare autosomal recessive congenital disorder characterized by severe mental retardation, brachycephaly, upslanting palpebral fissures, eye abnormalities, and highly arched palate.
[2] [3] People with MEDNIK syndrome often have a high forehead, upslanting palpebral fissures, a depressed nasal bridge, low-set ears, growth retardation, and brain atrophy apparent upon imaging. [4] The disorder was discovered by Patrick Cossette and his research team from the Université de Montréal.
Upslanting palpebral fissures; Skeletal indicators Tapering fingers; Hypotonia; Genetics. This condition is caused by mutations in the NR2F1 gene.
The distinct facial feature include upslanting palpebral fissures, a broad nose with rounded tip, long philtrum with a thin upper lip, pointed chin and prominent ears (Vasudevan 2005) Genetics [ edit ]
Viljoen–Kallis–Voges syndrome, also known as microcephaly-brachydactyly-kyphoscoliosis syndrome, is a very rare genetic disorder which is characterized by severe intellectual disabilities, microcephaly, low height/short stature, brachydactyly type D, flat occiput, down-slanting palpebral fissures, low-set prominent ears, a broad nose, and kyphoscoliosis.
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.
[5] [6] [10] Other physical symptoms that some cases have presented with include broad thumbs and toes, microcephaly, coarse hair, mildly asymmetric skull, up slanting palpebral fissures which is where the outside corners of the eyes are higher than normal, and smooth philtrum which is where the upper lip does not have a dip in the center.