At these scales, several orders of magnitude literally makes no difference.
Hydrogen bomb yields range from roughly 0.1 MT to 100 MT (the full design yield of the Tsar Bomba), or four orders of magnitude. They can be considered equivalent for the purposes of this comparison. The principle warhead of the US ICBM force, the W87 warhead, has yield of ~0.3 to 0.475 MT.
Even at a distance of several tens of metres from your eye, destructive effects would remain significant.
