MOSCOW — A Moscow court on Tuesday sentenced Pavel V. Dmitrichenko, the former Bolshoi Ballet Theater soloist, to six years in a penal colony for ordering an acid attack in January that nearly blinded the theater’s artistic director, Sergei Filin.

“We had hoped it would be less,” his father, Vitaly Dmitrichenko, said as he left court. The case had exposed one of the worst scandals in the Bolshoi’s history.

While the verdict is the end of a painful trial for the storied theater, turmoil still reigns at the Bolshoi, as sharp criticism of the ballet troupe under Mr. Filin’s leadership in recent weeks has undermined its attempts to project an image of stability since the attack.

In advance of Tuesday’s ruling, the newspaper Izvestia published a letter from 150 of Mr. Dmitrichenko’s supporters in the Bolshoi that called for a not-guilty verdict and asked the court to examine all the elements of the case “because it is impossible not to take into account the extremely complicated and painful situation in the ballet of the Bolshoi Theater, which, unfortunately, is no longer a secret to anyone,” the letter stated.