Ophthalmology Commons^™

Long-Term Visual Outcomes In Optic Nerve Sheath Meningiomas Following Fractionated Stereotactic Radiotherapy, Sana Dastgheyb, Christian Fernandez, Md, Maria Werner-Wasik, Md, Voichita Bar-Ad, Md, David Andrews Md, James Evans, Md, Kevin Judy, Md, Sara Lally, Md, Carol Shields, Md, Arman Mashayekhi, Md, Wenyin Shi, Md, Phd, Christopher Farrell, Md

Sigma Xi Student Research Day

Introduction

Radiation therapy is often used for tumors of the optic nerve. The challenge with irradiating tumors surrounding structures associated with the eye is the risk of exposing the optic nerve, or other structures important to maintaining vision to potentially damaging radiation.

Fractionated stereotactic radiotherapy (FSRT) is commonly used for the treatment of optic nerve sheath meningiomas (ONSMs) for vision preservation. However, long term visual data in the literature is limited. We investigated visual outcomes in 27 patients with ONSMs after FSRT.

Adp-Ribosylation Factor-Like 2 (Arl2) Regulates Cilia Stability And Development Of Outer Segments In Rod Photoreceptor Neurons, Zachary C. Wright, Yuriy Loskutov, Daniel Murphy, Peter Stoilov, Elena Pugacheva, Andrew F.X. Goldberg, Visvanathan Ramamurthy

Faculty & Staff Scholarship

Photoreceptor cells are specialized neurons with a sensory cilium carrying an elaborate membrane structure, the outer segment (OS). Inherited mutations in genes involved in ciliogenesis frequently result in OS malformation and blindness. ADP-ribosylation factor-like 2 (ARL2) has recently been implicated in OS formation through its association with Binder of ARL2 (BART or ARL2BP), a protein linked to inherited blinding disease. To test the role of ARL2 in vision we created a transgenic mouse model expressing a tagged-dominant active form of human ARL2 (ARL2-Q70L) under a rod-specific promoter. Transgenic ARL2-Q70L animals exhibit reduced photoreceptor cell function as early as post-natal day …