{"id":758,"date":"2013-04-29T19:33:05","date_gmt":"2013-04-29T23:33:05","guid":{"rendered":"http:\/\/www.mynutriguide.com\/?p=758"},"modified":"2019-12-26T12:44:17","modified_gmt":"2019-12-26T17:44:17","slug":"night-blindness-nyctalopia-3","status":"publish","type":"post","link":"https:\/\/glutenfreeworks.com\/health\/night-blindness-nyctalopia-3\/","title":{"rendered":"Night Blindness – Nyctalopia"},"content":{"rendered":"

\"Nightblindness\"<\/a>What Is Night Blindness?<\/h2>\n

N<\/span>ight blindness is a visual defect caused by lack of rhodopsin in the rods of the retina located in the back of the eyeball due to inadequate vitamin A.<\/p>\n

Q<\/strong>: How does inadequate vitamin A cause a lack of rhodopsin in the eyeball?<\/p>\n

A<\/strong>: Rhodopsin is a visual pigment that requires vitamin A as a component.<\/p>\n

Night blindness\u00a0is characterized by decreased ability to see at night or in the dark because rhodopsin is a chemical required for the retina to distinquish light and dark.\u00a0It is an early feature of vitamin A deficiency and also decreased content of oxygen in the blood such as anemia.<\/p>\n

With increasing vitamin A deficiency, damage to the rods and to the eyeball itself occurs because these tissues also require vitamin A for structure and function.<\/p>\n

Night blindness can be brought on by poor diet, gastroenteritis and fever due to increased requirements for vitamin A if stores in the liver are low, malabsorption, and systemic disease that interferes with storage in the liver or transport in the blood.<\/p>\n

Breastfeeding infants of mothers who are vitamin A deficient are at high risk since they will not have adequate liver stores and cannot get enough from mother’s milk.<\/p>\n

In teenagers it can be the beginning symptoms of retinitis pigmentosa, a group of\u00a0retinal degenerations that primarily affect the rod photoreceptors.1<\/a><\/p>\n

What Is Night Blindness In Celiac Disease and\/or Gluten Sensitivity?<\/h2>\n

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