There are many causes that can cause intermittent blurry vision. For example, eye fatigues can cause intermittent blurry vision and other discomfort in the eyes such as dry eyes, red eyes, itchy eyes etc. Besides, vision problem such as myopia, presbyopia, astigmatism and some refractive eye conditions can cause blurred vision if you ignore it. In addition, some eye diseases such as cataracts or migraines can cause blurred vision sometimes. What's more, some medications can also cause the blurry vision.
Yeah,I can totally understand ur feeling,man.I don't think that ur situation is very worse.It may be caused by fatigue.U need to take more rest as long as u r free.On the other hand,ur situation is very likely to be caused by eye strain.When u r suffering from this,u may feel sensitive to light which is very normal.Of course,guess can only be guess,and if u want to know more information about this,I recommend u to take an eye exam and I am sure that will solve ur problem soon.
Blurred vision refers to a lack of sharpness of vision resulting in the inability to see fine detail. Blurred vision may result from abnormalities present at birth such as nearsightedness or farsightedness that require corrective lenses (glasses) or it may signal the presence of eye disease. Blurred vision can also be a symptom of numerous conditions that do not directly involve the eye, such as migraine or stroke. A number of medications may also lead to temporary blurring of vision as a side effect.