That is near-ideal extraocular muscle placement:
That is muscle placement below ideal, but yet within normal range and found in many healthy subjects:
But if the angle deviates further, symptoms such as divergence insufficiency, esophoria or esotropia and/or complex strabismus like esohypotropia is present, in the latter stages the eye is stuck and even can’t move from downward and inward position:
The last in scientific language is termed “LR-SR band thinning” or supratemporal eyeball prolapse/protrusion. Seen in high myopia and aging people, yet quite rarely in both cases. Lateral Rectus and Superior Rectus muscles are connected by band that can thin out, causing an increase in angle between placement of both muscles named; or even disrupt - in this case the angle could increase from normal near 90 ±10 to above 180.
That’s diagnosed on AS-OCT (if I not err), MRI, radiology or CT.
You can look on the first image with significantly abnormal muscle placement and the second with relatively normal:
That’s why I would consider surgery here; if it is shown on MRI or similar.
There are reversible surgeries like belly union of LR and SR, but they would be not enough if the angle of eye displacement is too big.