Originally posted by StreamWhenGuy:

Was farming it from level 28 until may be 32-ish, so I assume there is no limit by character level. However, it may happen that when you're really at high level above him, the eye would stop dropping.

I understand that the drops are affected by the dungeon level not the character which is proven when using the Mapworks maps where certain socketables only drop within a certain dungeon's level range regardless of the character level.

I believe level may have relevance to drop rate for specific drops. Considering farming Grell for his Eye is a Boss Drop and not Chest loot, I'm beginning to suspect there's something at play here in this regard.

I've just finished ~40 Grell runs on a level 39. In my first 21 runs I got 9 Eyes, which is really good luck. I have minimal MF gear.

As soon as I hit level 39.5 they stopped dropping. My next set of 20 runs didn't yield a single Eye drop.

20 runs and not a single drop and I don't feel like it's a dry spell. The fact they stopped once I hit 39.5 on the XP bar is making me suspect that's just where the cut off point was for level range.

I don't feel like attempting anymore runs on this character after so many whiffed drops in a row.

Though I may try a few more later on as the ache of monotony from so many failed attempts wears off.