Often additional symptoms, such as enophthalmos, facial anhidrosis, iris heterochromia, conjunctival congestion, transient hypotonia and/or pupillary dilation lag, may be
[ebi.ac.uk]
Heterochromia iridium, anhidrosis, and enophthalmos were not present.
[jnnp.bmj.com]
– Assertions to the contrary notwithstanding, true enophthalmos does not occur; the ptosis merely gives an illusion created by narrowing of the palpebral fissure, which results
[physio-pedia.com]