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The syndrome is a rare but potentially fatal cause of failure to thrive in children. Failure to thrive presents on average at seven months of age. [1] Of note the syndrome is not associated with developmental delay. [2] There may be associated hydrocephalus. [citation needed] Diencephalic syndrome was first described by Dr. A. Russell in 1951. [3]
The optic nerve (CNII) attaches to the diencephalon. The optic nerve is a sensory (afferent) nerve responsible for vision and sight; it runs from the eye through the optic canal in the skull and attaches to the diencephalon. The retina itself is derived from the optic cup, a part of the embryonic diencephalon. [citation needed]
Congenital blindness is sometimes used interchangeably with "Childhood Blindness." However, current literature has various definitions of both terms. Childhood blindness encompasses multiple diseases and conditions present in ages up to 16 years old, which can result in permanent blindness or severe visual impairment over time. [2]
See Visual_acuity#Legal_definitions: VA Nsc - VA Ncc Visual acuity with Near chart without correctors Visual acuity with eye chart at Near 15.7 inches (400 mm) and without (sc: Latin sine correctore) correctors (spectacles); Ncc is with (cc: Latin cum correctore) correctors. See Visual_acuity#Legal_definitions: VA OS Left visual acuity VA OD
An eye patch or eye drops (in young children) "If there’s a coloboma of the eyelid, you can have surgery to repair that," Dr. Binenbaum says. Ultimately, though, "there is not much that can be ...
Often, children who are suspected of having amblyopia are too young to be able to verbally recognize letters on the Snellen chart, making the eye examination challenging. [13] It is critical to identify eye conditions early in children, as early detection and intervention can save vision and lives.
Childhood blindness is an important contribution to the national prevalence of the disability of blindness. [3] Blindness in children can be defined as a visual acuity of <3/60 in the eye with better vision of a child under 16 years of age. [4]
He explained I had a visual field loss called an inferior arcuate defect in my right eye, which meant the vision in the bottom portion of my right was permanently gone.