- Allergic reactions
An allergy can be caused by environmental factors, such as pollen (which tends to cause symptoms only during certain periods of the year or season), or by ingredients, medications, or foods: Wheat, certain legumes, shellfish, and lactose allergies are extremely common, but you can theoretically be allergic to anything and develop an allergy at any point in your life.
Vision blurring is a prevalent symptom of the majority of allergy attacks and episodes. Flushing of the skin, a rash, itching, fever, trouble swallowing or breathing, and excessive phlegm production are all symptoms that may accompany impaired vision and indicate an allergic reaction.
Occasionally, allergic reactions are modest, but they can also be dangerous and have the potential to be fatal if medical assistance is not sought in a timely manner. If you suspect that you have allergies, you should visit an allergy specialist for testing and ensure that you always have the appropriate antihistamines on hand.
