This can occur more frequently when a person has CVI. Hence, a person with CVI can look at an optical illusion or abstract picture and perceive something that is significantly different from what a person without CVI will perceive.The presence of CVI does not necessarily mean that the persons brain is damaged in any other way, but it can often be accompanied by other neurological problems, the most common being epilepsy. Diagnosis
Diagnosing CVI is difficult. A diagnosis is usually made when visual performance is poor but it is not possible to explain this from an eye examination. Before CVI was widely known among professionals, some would conclude that the patient was faking their problems or had for some reason engaged in self-deception. However, there are now testing techniques that do not depend on the patients words and actions, such as fMRI scanning, or the use of electrodes to detect responses to stimuli in both the retina and the brain. These can be used to verify that the problem is indeed due to a malfunction of the visual cortex and/or the posterior visual pathway. See also
Cortical blindness

References
Further reading
Tallent, Aubri & Tallent, Andrei (2012). Little Bear Sees: How Children with Cortical Visual Impairment Can Learn to See. Little Bear Sees Publishing, of Wyatt-MacKenzie. p. 156. ISBN 978-1936214822. OCLC 1936214822. Roman-Lantzy, Christine (2019). Cortical Visual Impairment: Advanced Principles. New York: AFB Press. ISBN 978-1616480073. OCLC 1055566701. Roman-Lantzy, Christine (2017). Cortical Visual Impairment: An Approach to Assessment and Intervention 2nd Ed. New York: AFB Press. ISBN 978-0891286882.
Funisitis is inflammation of the connective tissue of the umbilical cord that occurs with chorioamnionitis. It involves only the external cord surface and Whartons jelly. It has no involvement of the vessels. It does not involve the umbilical stump, which would be seen in omphalitis. Necrotizing funisitis
Necrotizing funisitis is a very severe form of funisitis that occurs when the funisitis has been present for a long time. Debris from inflammatory cells accumulate and the cord becomes calcified. Treatment with IV antibiotics is necessary for necrotizing funisitis, with a minimum of 7 days. This can occur in healthy born infants; the infection occurs in the days and weeks following birth. With IV antibiotic treatment and early management, outcomes are good. Syphilis association
It could be associated with congenital syphilis, which is noted in a journal from 1999. It is now rare, and seen almost exclusively in the preterm infant. The majority of these affected infants are stillborn, or die within a few weeks of birth. See also
Chorioamnionitis
Placentitis


== References ==