The Meckel syndrome is a genetically determined (autosomal recessive) disease with major developmental abnormalities incompatible with life. The ocular manifestations include cryptophthalmos, clinical anophthalmos, microphthalmos, sclerocornea, microcornea, abnormal iridocorneal angle, partial aniridia, cataract, persistent tunica vasculosa lentis, retinal dysplasia, posterior staphyloma, and hypoplasia of the optic nerve. The ocular abnormalities are very similar to those of the 13-15 trisomy syndrome, but the chromosome karyotype is normal in the Meckel syndrome.
MacRae DW, Howard RO, Albert DM, Hsia YE. Ocular Manifestations of the Meckel Syndrome. Arch Ophthalmol. 1972;88(1):106–113. doi:10.1001/archopht.1972.01000030108028
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