Department of Ophthalmology, Ankara University Faculty of Medicine, Ankara, Turkey.
Ophthalmic Plast Reconstr Surg. 2024;40(2):e48-e51. doi: 10.1097/IOP.0000000000002551. Epub 2023 Nov 23.
Monocular elevation deficiency is a congenital, unilateral inability of elevation. It is classified as innervational, restrictive, or combine types. Here, we report a rare case of monocular elevation deficiency who had 60 PD left hypotropia and left ptosis with limited elevation (-5) both on abduction and adduction. Orbital MRI revealed a hypointense fibrotic band between the superior oblique and superior rectus muscles extending obliquely in the superonasal direction between the sclera and orbital roof. She was successfully treated after severing the fibrotic band between the sclera and bony orbit.
单眼上睑下垂是一种先天性、单侧的上睑提举障碍。它可分为神经源性、限制型或混合型。在这里，我们报告了一例罕见的单眼上睑下垂病例，患者左眼上斜视 60 棱镜度，左眼上睑下垂，外展和内收时上提均受限（-5）。眼眶 MRI 显示，上斜肌和上直肌之间有一低信号纤维带，呈斜向鼻上方向延伸于巩膜和眶顶之间。在切断巩膜和骨性眼眶之间的纤维带后，患者得到了成功治疗。
