Danihers eye on the future
It is understood Daniher will also miss Friday's session at Tullamarine as the Bombers take a cautious approach with his optical health.
Coach Worsfold also said Daniher was no certainty for round one due to his problematic eye complaint.
"Joey's working really hard. That conjunctivitis can be a really itchy, annoying injury so our No.1 priority is that it doesn't linger and affect multiple seasons for Joey," Worsfold said at Essendon's annual general meeting in December.
"He's still coming into his prime years, so if the sake of him absolutely getting over this eye injury means it actually takes a little bit longer than him being absolutely ready for round one then we'll do that."
"Make no mistake we are not weeping, even if Joe is"
If you or anybody you know is suffering from poor eye health, contact the Royal eye hospital or the Fred hollows foundation.