Occasionally I will have foggy or cloudy vision. I can't see things very clearly either close or far away. My ability to focus is unaffected. When impaired I can still read, use a computer and drive, but it is straining and annoying. It is intermittent, I have it about two days per week. It often goes away after a 3 to 6 hours, but sometimes it lasts most of the day. Most of the times taking saline eyedrops will clear it up for a short time. Is usually happens more often if I sleep longer than six hours. I also feel more tired when I have this problem, but I believe that is due to the foggy vision itself.
I have worn glasses and contacts in the past: prescriptions of 1.5 in one eye and 5.5 in the other. I had Lasik w/interlace about five years ago and had no problems with foggy vision (or halos, etc.) until this started about four months ago. I am a 41 yo male and just starting to notice a little far sightedness. My cholesterol, triglycerides, blood sugar, BMI, etc. are all healthy. I do have allergies including seasonal allergies that include itchy eyes, etc. but this vision problem does not seem to correlate 1.0 to allergies (but it might be affected). I take Zyrtec seasonally, antioxidants and vitamin D regularly.