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What is All the following signs could result from infection within the right cavernous sinus except- and explain in detail?
Cavernous sinus thrombosis 

Source → Infection from nose, sinuses, orbits, ear or pharynx
Onset → Abrupt with high fever and chills and with signs of toxemia.
Cranial N involvement → III to VII
Ocular features


Patient develops severe pain in the eye and forehead of the involved side.
Conjunctiva is swollen and congested
Proptosis
Ptosis (due to 3rd N. palsy)
Ophthalmegia (due to palsy of 3rd , 4th and 6th cranial N)
Dilated pupil (due to 3rd N involvement)
Retinal veins shows congestion
Papilloedema
Fundus may be normal