You are not able to accommodate for some reason. Most likely suspect is the anarex. When you stop it, your vision should return to normal. If it doesn't, see an ophthalmologist. You may not want to pay for a new prescription of glasses until the effect wears off as it could also change your prescription for glasses temporarily.
HV
Just an update for my situation. Collected my new glasses today. And since last night, my eye have been at it normal vision. I can read things up close using glasses now. Everything is back to normal. I am glad. And thank you to doctor vosoghi for the advice. True enough, it was from the anarex tab.
This morning when i wake up, i tried to read things up close and it's not that blurry compared to last night. But now before going to bed, i tried again reading things up close and my vision is very blurry. So i conclude that my vision is blurry when read things up close with spectacles on at night. I am still so worried but i've stopped taking anarex. Maybe it takes awhile for the effect to go off. :(
I forgot to include, when i took off my glasses and read/see things upclose, i can see better than using the glasses which causes me to have blurred vision when i had them on. So you still think it might be caused from the anarex? If yes, i prolly might stopped taking them right away and see how it goes for the next few days. Hopefully my vision would be back to normal when i had my glasses on in a few days time!