Optic Nerve Sheath Decompression for Pseudotumor Cerebri

Localized Cystic Enlargement of the Distal Optic Nerve Sheath After Decompression Surgery

“…Upon the second presentation of the patient it was noticed that the perioptic cystic space was present even after 2 years postoperatively without any deterioration of optic nerve function. Ultrasonographic findings were compatible with the MRI images, demonstrating a cyst-like enlargement contiguous with the fenestration site; a finding previously reported 5,6,8. Therefore, we presume that soft tissue replacement may not be absolutely necessary; instead, walls of the cystic space may fibrose and still allow minimal amounts of CSF filtration into the orbit while maintaining its integrity.…”

Localized Cystic Enlargement of the Distal Optic Nerve Sheath After Decompression Surgery

“…Upon the second presentation of the patient it was noticed that the perioptic cystic space was present even after 2 years postoperatively without any deterioration of optic nerve function. Ultrasonographic findings were compatible with the MRI images, demonstrating a cyst-like enlargement contiguous with the fenestration site; a finding previously reported 5,6,8. Therefore, we presume that soft tissue replacement may not be absolutely necessary; instead, walls of the cystic space may fibrose and still allow minimal amounts of CSF filtration into the orbit while maintaining its integrity.…”

Idiopathic intracranial hypertension

“…It has been widely reported as being effective for visual loss associated with IIH [18,Class IIIc;[19][20][21][22]37,38,Class IIIa2]. Standard procedur A standard lateral or medial orbitotomy is performed by an ophthalmic surgeon, usually with the patient under general anesthesia.…”

Optic Nerve Sheath Decompression

“…Visual field defects are detected in more than 90% of patients, and severe impairment of visual acuity has been reported in up to 10% of patients (2,3). ONSD has been demonstrated in multiple studies to be an effective and safe method of stabilizing progressive visual loss in IIH patients (4)(5)(6)(7)(8)(9). After medical treatment strategies are exhausted or unable to be tolerated and there is progression of disease, ONSD is a mainstay of management to avoid further deterioration of acuity or visual field.…”

Localized Cystic Enlargement of the Distal Optic Nerve Sheath After Decompression Surgery

“…Upon the second presentation of the patient it was noticed that the perioptic cystic space was present even after 2 years postoperatively without any deterioration of optic nerve function. Ultrasonographic findings were compatible with the MRI images, demonstrating a cyst-like enlargement contiguous with the fenestration site; a finding previously reported 5,6,8. Therefore, we presume that soft tissue replacement may not be absolutely necessary; instead, walls of the cystic space may fibrose and still allow minimal amounts of CSF filtration into the orbit while maintaining its integrity.…”

Idiopathic intracranial hypertension

“…It has been widely reported as being effective for visual loss associated with IIH [18,Class IIIc;[19][20][21][22]37,38,Class IIIa2]. Standard procedur A standard lateral or medial orbitotomy is performed by an ophthalmic surgeon, usually with the patient under general anesthesia.…”

Optic Nerve Sheath Decompression

“…Visual field defects are detected in more than 90% of patients, and severe impairment of visual acuity has been reported in up to 10% of patients (2,3). ONSD has been demonstrated in multiple studies to be an effective and safe method of stabilizing progressive visual loss in IIH patients (4)(5)(6)(7)(8)(9). After medical treatment strategies are exhausted or unable to be tolerated and there is progression of disease, ONSD is a mainstay of management to avoid further deterioration of acuity or visual field.…”

Localized Cystic Enlargement of the Distal Optic Nerve Sheath After Decompression Surgery

“…Upon the second presentation of the patient it was noticed that the perioptic cystic space was present even after 2 years postoperatively without any deterioration of optic nerve function. Ultrasonographic findings were compatible with the MRI images, demonstrating a cyst-like enlargement contiguous with the fenestration site; a finding previously reported 5,6,8. Therefore, we presume that soft tissue replacement may not be absolutely necessary; instead, walls of the cystic space may fibrose and still allow minimal amounts of CSF filtration into the orbit while maintaining its integrity.…”

Idiopathic intracranial hypertension

“…It has been widely reported as being effective for visual loss associated with IIH [18,Class IIIc;[19][20][21][22]37,38,Class IIIa2]. Standard procedur A standard lateral or medial orbitotomy is performed by an ophthalmic surgeon, usually with the patient under general anesthesia.…”

Optic Nerve Sheath Decompression

“…Visual field defects are detected in more than 90% of patients, and severe impairment of visual acuity has been reported in up to 10% of patients (2,3). ONSD has been demonstrated in multiple studies to be an effective and safe method of stabilizing progressive visual loss in IIH patients (4)(5)(6)(7)(8)(9). After medical treatment strategies are exhausted or unable to be tolerated and there is progression of disease, ONSD is a mainstay of management to avoid further deterioration of acuity or visual field.…”