Objects look pixelated/blurry through glass

Hey all, relatively new to creating cc so not really sure what's happening or how to fix it. So I created a table (2x1) with a glass top, which works fine but the problem is with the 3x1 table I made by extending the 2x1 one. Anything seen through the glass of the extended table looks pixelated/blurry, I thought that it was because I was using the same diffuse glass texture as the smaller table but even after creating a larger texture it's still happening. I also tried recreating the mesh for the glass portion and changing the UV map but nothing seems to be working. I did some snooping but couldn't find anyone with a similar problem. Any help would be appreciated. 

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