Loss of vision can occur suddenly or develop gradually over time. Vision loss may be complete (involving both eyes) or partial, involving only one eye or even certain parts of the visual field. Vision loss is different from blindness that was present at birth, and this article is concerned with causes of vision loss in an individual who previously had normal vision. Vision loss can also be considered as loss of sight that cannot be corrected to a normal level with eyeglasses . The causes of loss of vision are extremely varied and range from conditions affecting the eyes to conditions affecting the visual processing centers in the brain. Impaired vision becomes more common with age. Common causes of vision loss in the elderly include diabetic retinopathy , glaucoma , age-related macular degeneration , and cataracts .
Emotional ups and downs
Hormones, lack of sleep, the reality of pregnancy—all of these can contribute to a roller coaster of emotions. You could feel quiet and withdrawn, elated, worried, angry, tearful or happy-go-lucky—and it's all perfectly fine. Of course, it's better to stay on an even keel as much as you can (your loved ones will thank you), so try to get as much rest and exercise as you can. Finding sympathetic friends also helps—preferably those who are pregnant, online or off. The changes your body is undergoing can produce a wide variety of first trimester symptoms and an equally wide range of feelings to go along with them. Try not to worry too much, and ask your doctor if you have any questions about what you're experiencing.
If you would like more in depth information about all anxiety symptoms, including those symptoms that aren't listed or explained above - the Symptoms section (Chapter 9) in the Recovery Support area of our website includes every anxiety symptom, including complete descriptions, explanations, remedies, and the percentage of people who experience it. The Anxiety Symptoms section in the Recovery Support area is the most comprehensive symptoms resource available anywhere today. Click here for more information about our Recovery Support area, including membership options .