In thyroid eye disease, 1st muscle affected is inferior rectus,so 1st movement affected is elevation of eyeball or depression of eyeball. I am confuse because its mention elevation as the answer. Wont it be depression
Acc to my understanding, it will lead to restrictive eye disease
Inferior rectus affected means uski movements will get restricted. So eyeball will be unable to elevate…like a taut rope keeping it restricted to depression… rest, sir may clarify further!
priya is right.
Inf rectus is kinda fixed.
So upward movement will be difficult more.
It is restrictive myopathy in which the eye movements are restricted due to edema that occurs in the extraocular muscles during the infiltrative stage and the subsequent fibrosis.