The Blountville Library Now Offers Enchroma Glasses For Residents With Red-Green Color Blindness. The Glasses Enhance Color Perception And Are Available Through A Partnership With The Tennessee State Library Association And Holston Regional Library System.The Library Has Three Adult Pairs And One For Children. Borrowers Must Have A Library Card In Good Standing And Be At Least 18. Parents Can Check Out Glasses For Children. For More Details, Call The Library At (423) 279-2714.