I recovered from covid 2 months back and I am having blurred vision from last 4-5 days when I do not use my specs even for near objects. i have -1.5 and -3.0 power in left and right my respectively. I am also having nasal blockage and from yesterday feeling pain in chest area. But there is no swelling or redness in eye. I did not take any steriod nor I have diabetes. What should I do. i am tensed for blur vission and black fungus threat.