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Neuro-Ophthalmology·University Hills, Orange County

Radiation Optic Neuropathy Treatment in University Hills, California

Medically reviewed by Dr. Alexander Bonakdar, O.D. · Updated February 2026

Radiation Optic Neuropathy (RON) is a devastating complication of radiation therapy to the head, orbit, or paranasal sinuses, causing irreversible vision loss. It typically occurs 6 months to 3 years after radiation exposure, when the total dose exceeds 50 Gy. The condition results from radiation-induced damage to the optic nerve vasculature, leading to ischemic injury and optic nerve atrophy.

University Hills patients experiencing radiation optic neuropathy benefit from our 35+ years of diagnostic experience and advanced imaging capabilities, ensuring accurate diagnosis and evidence-based treatment.

Dr. Bonakdar on Radiation Optic Neuropathy

Direct Answers from Dr. Bonakdar

Dr. Alexander Bonakdar at EyeCare Center of Orange County provides expert radiation optic neuropathy diagnosis and treatment for patients in University Hills and throughout Orange County. With over 35 years of clinical experience and advanced diagnostic technology, each patient receives a personalized treatment plan based on their specific condition severity and lifestyle needs.

What is Radiation Optic Neuropathy?

Radiation Optic Neuropathy (RON) is a devastating complication of radiation therapy to the head, orbit, or paranasal sinuses, causing irreversible vision loss. It typically occurs 6 months to 3 years after radiation exposure, when the total dose exceeds 50 Gy. The condition results from radiation-induced damage to the optic nerve vasculature, leading to ischemic injury and optic nerve atrophy.

How is Radiation Optic Neuropathy treated?

Treatment options include Hyperbaric oxygen therapy (if caught early), Systemic corticosteroids, Anti-VEGF therapy (bevacizumab) under investigation, Pentoxifylline and vitamin E combination. The best approach depends on your specific diagnosis, severity, and lifestyle needs.

What are the symptoms of Radiation Optic Neuropathy?

Common symptoms include Progressive painless vision loss months to years after radiation, May be unilateral or bilateral, Visual field defects, Decreased color vision, Afferent pupillary defect. If you experience any of these, a comprehensive eye examination can determine the cause.

What are the symptoms of Radiation Optic Neuropathy?

University Hills residents experiencing any combination of the following symptoms should schedule a comprehensive evaluation:

  • Progressive painless vision loss months to years after radiation
  • May be unilateral or bilateral
  • Visual field defects
  • Decreased color vision
  • Afferent pupillary defect
  • Optic disc pallor or atrophy
  • Often no improvement with treatment

How is Radiation Optic Neuropathy treated?

Treatment for University Hills patients is tailored to the specific type and severity of their condition. Options available at our practice include:

Hyperbaric oxygen therapy (if caught early)
Systemic corticosteroids
Anti-VEGF therapy (bevacizumab) under investigation
Pentoxifylline and vitamin E combination
Low vision rehabilitation
Prevention through careful radiation planning
Fractionation of radiation doses

Radiation Optic Neuropathy FAQs for University Hills Patients

Common questions from University Hills patients about our eye care services

At EyeCare Center of Orange County, we diagnose radiation optic neuropathy using advanced diagnostic equipment including corneal topography, OCT imaging, and comprehensive eye examinations. University Hills patients receive the same comprehensive diagnostic technology used at major academic eye centers, right here in Orange County.
We offer comprehensive treatment options for radiation optic neuropathy including specialty contact lenses, medical therapy, and advanced procedures. Dr. Bonakdar personalizes each University Hills patient's treatment plan based on condition severity, lifestyle demands, and long-term visual goals.
Call (714) 558-1182 or book online. Initial consultations take 60-90 minutes and include comprehensive testing. Our centrally located Orange County practice is easily accessible from University Hills, with appointment times designed to fit your schedule.
Yes, we accept most major vision and medical insurance plans including VSP, EyeMed, Medicare, and Medi-Cal for radiation optic neuropathy diagnosis and treatment. We verify your coverage and discuss costs before any procedures.

Have more questions? Call us at (714) 558-1182

Radiation Optic Neuropathy Care for University Hills Residents

University Hills patients seeking care for radiation optic neuropathy benefit from our 35+ years of clinical experience and advanced diagnostic capabilities. Our centrally located Orange County practice is easily accessible for University Hills residents, with flexible scheduling to accommodate your needs. We provide thorough evaluation, accurate diagnosis, and evidence-based treatment tailored to your individual needs. Whether your condition requires ongoing monitoring, medical therapy, or surgical co-management, our practice ensures continuity of care from diagnosis through recovery.

About University Hills

Academic community surrounding UC Irvine

Population: 15,000+

University studentsFaculty and staffGraduate studentsInternational students

Languages Spoken in University Hills

Our practice serves the diverse University Hills community. We provide care to patients who speak:

EnglishMandarinKoreanVietnameseFarsi

Eye Health Priorities for University Hills

  • Comprehensive eye examinations
  • Contact lens fittings
  • Glasses and eyewear
  • Eye disease treatment
  • Emergency eye care

Conveniently Located Near University Hills Landmarks

Our Orange County practice is easily accessible for University Hills patients living near:

University of California, Irvine
UCI Medical Center
Aldrich Park
University Town Center

Getting to Our Office from University Hills

Drive Time
20 min
Primary Route
5 Freeway
Distance
6.7 mi

University Hills patients typically reach our Santa Ana office via the 5 Freeway in approximately 20 minutes. Free on-site parking is available in our building.

801 N Tustin Ave, Ste 404, Santa Ana, CA 92705 — Get Directions

University Hills Neighborhoods We Serve

  • University Park
  • UCI Campus Area

Zip codes: 92617

Don't Delay Treatment for Radiation Optic Neuropathy

Without timely care, radiation optic neuropathy can lead to lasting visual impairment. Early diagnosis and treatment offer the best outcomes for University Hills patients.

Why University Hills Patients Choose EyeCare Center for Radiation Optic Neuropathy

Neuro-Ophthalmic Assessment

Thorough evaluation of radiation optic neuropathy including pupil testing, motility assessment, and visual field analysis.

Urgent Neuroimaging Coordination

When University Hills patients present with concerning neuro-ophthalmic signs, we expedite MRI and CT referrals.

Multidisciplinary Approach

We collaborate with neurologists, neurosurgeons, and neuroradiologists for conditions that bridge eye and brain.

35+ Years of Clinical Judgment

Distinguishing urgent neuro-ophthalmic findings from benign variants requires experience—Dr. Bonakdar has been making these distinctions since 1991.

Dr. Alexander Bonakdar - Board Certified Ophthalmologist

Your Radiation Optic Neuropathy Specialist in University Hills

Dr. Alexander Bonakdar is a board-certified ophthalmologist with over 35 years of experience treating radiation optic neuropathy and complex eye conditions. Trained at the #1-ranked Bascom Palmer Eye Institute, he has helped over 10,000 patients achieve and maintain clear vision.

35+ Years10,000+ PatientsBascom Palmer
Learn more about Dr. Bonakdar →

Patient Stories from University Hills

See why your neighbors in University Hills trust us with their vision.

Comprehensive Exam

"Not a fan of getting my eyes checked but the receptionist and Dr. were very nice and eased my anxiety."

emily garcia
Santa Ana, CA

Comprehensive Exam

"I came back for my yearly visit and had a great experience as always."

Eduardo arias
Santa Ana, CA

Schedule Your Radiation Optic Neuropathy Consultation

Expert diagnosis and treatment for University Hills and Orange County residents.