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Transconjunctival Approach for Injection into the Rat Optic Nerve
Published on: April 4, 2025
Current treatment of optic nerve gliomas
Marybeth K Farazdaghi1,2, William R Katowitz1,2, Robert A Avery1,2,3
1Division of Ophthalmology, The Children's Hospital of Philadelphia.
Purpose Of Review:
Optic pathway gliomas are low-grade neoplasms that affect the precortical visual pathway of children and adolescents. They can affect the optic nerve, optic chiasm, optic tracts and radiations and can either be sporadic or associated with neurofibromatosis type one. Gliomas isolated to the optic nerve (ONG) represent a subgroup of optic pathway gliomas, and their treatment remains controversial. New developments in ONG treatment have emerged in recent years, and it is necessary for clinicians to have a current understanding of available therapies.
Recent Findings:
The current review of the literature covers the background of and recent developments in ONG treatment, with a focus on standard chemotherapy, new molecularly targeted therapies, radiation therapy and surgical resection and debulking.
Summary:
Although standard chemotherapy remains the mainstay of ONG treatment, newer molecularly targeted therapies such as mitogen-activated protein kinase kinase inhibitors and bevacizumab represent a promising new treatment modality, and clinical studies are ongoing.
Insights
Optic nerve gliomas (ONG) treatment is evolving. While chemotherapy is standard, targeted therapies show promise for these pediatric visual pathway tumors.
Area of Science:
- Pediatric Oncology
- Neuro-oncology
- Ophthalmology
Background:
- Optic pathway gliomas are low-grade neoplasms affecting the pediatric visual pathway.
- They can be sporadic or associated with neurofibromatosis type 1.
- Gliomas isolated to the optic nerve (ONG) have controversial treatment strategies.
Purpose of the Study:
- To review current understanding of optic nerve glioma (ONG) treatments.
- To highlight recent developments in ONG therapy.
- To provide clinicians with an updated overview of available therapeutic options.
Main Methods:
- Literature review focusing on ONG treatment.
- Analysis of standard chemotherapy, molecularly targeted therapies, radiation, and surgery.
- Synthesis of recent advancements and ongoing clinical studies.
Main Results:
- Standard chemotherapy remains a primary treatment for ONG.
- New molecularly targeted therapies, including MEK inhibitors and bevacizumab, are emerging.
- Radiation therapy and surgical debulking are also discussed.
Conclusions:
- Molecularly targeted therapies represent a promising new modality for ONG treatment.
- Ongoing clinical studies are evaluating the efficacy of these novel agents.
- A comprehensive understanding of evolving ONG therapies is crucial for clinical practice.
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