Eye injuries and diseases aren't the only things that can cause blurry vision. Some of the causes of blurry vision aren't easily associated with the eye condition. Here are a few examples:
The balance of hormones in your body changes when you get pregnant. One side effect of these hormonal changes is fluid retention, which changes the cornea's shape and thickness. The cornea is the outermost layer of the eye; one of its major roles is to focus the light entering the eye. Therefore, if its shape and thickness change, the ability of the eye to focus may also change leading to blurry eyes or double vision. The hormonal changes may also dry out your eyes, and dry eyes also lead to blurred vision. This is why pregnant women are advised to avoid eye surgery until after delivery; the surgery needs to be done when the cornea is at its normal shape and thickness.
Medication is meant to make people well, but sometimes they have side effects that mimic other illnesses. For example, birth control pills, antihistamines (mainly used for treating allergies), and antidepressants can cause dry eyes and blurry vision. What is even more surprising is that eye drops, which are meant to deal with eye conditions, can also cause dry eyes and blurry vision. This is why it's advisable to consult a physician for all eye-related conditions; self-medication may make things worse.
Getting LASIK Surgery
Laser-assisted in situ keratomileusis (LASIK) surgery, or laser eye surgery in everyday language, is meant to correct vision so that those with eyesight problems don't have to wear glasses. In fact, one of the eyesight problems it's meant to correct is that of blurry vision (astigmatism). Unfortunately, one of the risks of LASIK is that it can leave you with blurry vision! The good news is that most people who experience the side effect eventuality recover from it. Still, it's in your best interest to consult your doctor if you develop a blurry vision (or any other side effect) after your surgery.
This isn't an exhaustive list of potential causes of blurry vision. Therefore, whenever you are dealing with blurry vision (or any eye problem), don't presume to know what is wrong with your eye if you aren't a trained eye professional. The eye is a very sensitive organ, and it needs to be treated as such. Let the professionals do their work and do your part by following their advice to the letter.
For more information, contact local professionals like Evans, Robt. L Dr.