Anxiety can, indeed, affect vision.  The effects can include blurry vision, tunnel vision, flashing (usually around the peripheral vision), shadows (again, usually around the peripheral vision),  and other vision disturbances.

My question is, how are you treating your anxiety?  Are you on any meds?  Are you seeking any type of therapy?  Let me give you the following link which will help you in treating it naturally.  However, sometimes, depending on the person, therapy is necessary.  But if your therapist suggests antidepressants or benzos to help you along, I would seek another therapist.  I don't know if the source of your anxiety is emotional or physical.  You will find that the supplements found in the following article will help to calm and balance you, but sometimes one has to resolve emotional conflicts and learn coping techniques.  

http://www.naturalnews.com/028452_anxiety_panic_attacks.html

Colloidal Gold, which is mentioned in the article, works on the brain receptors and is excellent for treating anxiety.  Curezone sponsor Utopia Silver carries the best quality colloidal gold.  They have special offers and discounts for curezone members in place.  If you are a first time buyer, you will receive one free bottle for every 8 oz bottle ordered, but you must call to request this offer, as it only applies to curezone members.  Additionally, by inserting coupon code LR001, you will receive a 15% discount on all items that are not on sale.

Another excellent supplement for relieving anxiety is Rose Laurel OPC Plus, again from Utopia Silver.

A magnesium deficiency may also be the cause of anxiety symptoms.  Keep in mind that a large portion of the population is magnesium deficient.  However, for proper absorption, when supplementing with magnesium one must include calcium at a ratio of 1:2 or 1:3.  Utopia Silver has a supplement with these very ratios by the name of CalMag, which I take daily. 

Again, an iodine deficiency is often responsible for anxiety.  Utopia Silver also carries Lugol's Iodine.

Dr. Christopher's Eyebright Formula from iherb may very well help with the vision disturbance that you are experiencing.   The Hawthorne Berry Syrup also helps calm anxiety symptoms.   If you are a first time buyer, by using Code XOT949, you will receive $5.00 off your first purchase.

EDITED PORTION:  If you are not on any prescribed medications, http://www.nativeremedies.com has a very good product by the name of Mind Soothe.  It contains St. John's Wort and Passionflower, and it is very effective in relieving depression and anxiety.

Lastly, Your surroundings also play a very important part in reducing stress and anxiety. Below is an article with suggestions on how you can make your home your special haven.  

http://www.tbyil.com/Home_Haven.htm

My Best,

Luella