World Eye Cancer Hope USA is excited to invite our retinoblastoma community to One Retinoblastoma World 2026!

The 8th One Retinoblastoma World Conference (One Rb World) takes place September 12-14, 2026, in San Antonio, Texas – preceding the 58th World Congress of the International Society of Pediatric Oncology (SIOP) from September 15-18, 2026. SIOP is the primary professional organization for those working in childhood cancer and includes a track for parent and survivor advocates.

When: Saturday, September 12 - Monday, September 14, 2026.

Where: Hyatt Regency San Antonio Riverwalk, 123 Losoya Street, San Antonio, Texas 78205, USA

Guest hotel rooms will be available for reservation via a special link in December 2025. For rates and more information about the hotel, visit our One Rb World event webpage.

We recognize the 2026 conference falls during Rosh Hashana, and we apologize for any conflicts this may create. We hope many in our community will still be able to participate, and we remain committed to making the conference as accessible and inclusive as possible.

One Rb World Program

Programming for all three days of One Rb World is impactful for medical professionals, Rb families/survivors, friends, and advocates. We encourage all guests to attend the duration of the conference and we look forward to sharing the agenda and speakers lineup soon.

A group of about 60 people smile together in front of 3 trolleys after being taken around on a tour of Honolulu. Some guests are wearing festive accessories such as leis and sunglasses shaped like pineapples

Our One Retinoblastoma World 2024 families shine brightly after touring Honolulu together before the conference

A Unique Event for Retinoblastoma Care

Awareness, medical care, and family support are essential to effective care of children with retinoblastoma. If any of these elements are missing, a child’s quality of life and chance of survival are dramatically reduced. Beyond cure, lifelong care is critical for individuals and families with complex impacts and risks from this cancer.

One Retinoblastoma World is a global network with the bold idea that all children with retinoblastoma and survivors can have equal access to optimal care. When diagnosed early and treated effectively, childhood eye cancer is curable. No child or survivor should die or experience avoidable suffering due to lack of access to care.

Providing unique educational and networking opportunities, this working meeting focuses on building connections and collaborations to enhance care for children, survivors, and families. Engaging clinicians, researchers, families, and survivors together fosters shared learning and novel partnerships for real-world progress.

Explore recent conferences that highlight the meaningful content, collaboration, and community of One Rb World:

Child Life Program

We are delighted to provide full Child Life programming throughout the conference. In this engaging and supportive space, children diagnosed with Rb, as well as their siblings and friends, will learn coping techniques for difficult medical procedures and how to navigate the big emotions that accompany a pediatric cancer diagnosis, all while having lots of fun! Led by Certified Child Life Specialist Morgan Livingstone, young attendees will gain crucial and lifelong knowledge to aid them in their medical journey.

All children are registered free of charge. However, you must provide full name and age details for each child you wish to bring to the program, as requested on your registration form. If we do not receive this information, your child will not be registered, and may not be accepted to the child life program. This ensures we will be well-prepared, and the children in our program will be safe throughout the event.

From WE C Hope's blog: WE C Hope and Child Life: Bridging Gaps, Easing Trauma, Building Hope - discover how Child Life programs at events like One Rb World can radically improve a child's Rb experience and family coping.

Attendees of our One Retinoblastoma World 2017 Conference smile on their final day in Washington, D.C.

Ticket Types (All prices are in USD)

We offer a range of registration fee options to enable vital inclusive global collaboration.  Please select your ticket carefully.

Reduced rates are available for medical professionals, researchers, parents, and survivors from countries listed by the World Bank as Low-Income or Lower-Middle-Income (LIC/LMIC). These ticket prices do not apply to residents of High-Income and Upper-Middle-Income Countries (HIC/UMIC) such as the USA, Canada, and the UK. Attendees purchasing reduced rate tickets from non-qualifying countries will be refunded and asked to register at the appropriate level.

Important Dates:

Early bird rates close on February 1, 2025, at 11:59PM PST.
Standard rates close September 1, 2026, at 11:59PM PDT.
After standard rates end, tickets will only be available at the onsite price level on the day of the event.

One (1) Rb Family Ticket includes two (2) adults (ages 17+) and the option for up to four (4) children.

In-Person Rates (USD):

Ticket Type	Early Bird	Standard	Onsite
Rb Family Ticket	$150	$200	$275
Rb Family Ticket – Reduced (LIC/LMIC countries only)	$100	$125	$200
Single Rb Survivor/Advocate	$70	$90	$140
Single Rb Survivor/Advocate - Reduced (LIC/LMIC countries only)	$60	$75	$120
Medical Professional	$400	$500	$650
Medical Professional – Reduced (LIC/LMIC countries only)	$200	$250	$300
Medical Professional Speaker	$350	$350	$500
Guest of a Medical Professional or Medical Professional Speaker	$100	$100	$175
Medical Student or Resident	$200	$200	$250

What is Included in the Ticket Fee?

Pre-conference social activities and evening welcome reception on Friday, September 11.
All three days of the conference. We encourage professionals, survivors and family members to attend all three days of the program for maximum benefit. Full participation fosters a deeper understanding of every aspect of retinoblastoma and nurtures a stronger global community.
Registration for the Child Life program for children diagnosed with retinoblastoma, their siblings, children of adult survivors, and children of One Rb World conference speakers and medical professionals.

Visa Enquiries

When potential delegates contact us with concerns about visa approval, registration will be held at the price level valid at that time. Please contact us if you require an invitation letter.

For information about the Visa Waiver Program, click here.

For information about Visitor Visas, click here.

Continuing Medical Education Credits

At this time, the One Retinoblastoma World Conference is unable to offer Continuing Education Credits/Units. However, we do provide a certificate of attendance post-conference, stating the dates and hours that an individual attended the conference. To request a certificate, email marissa@wechope.org.

Support World Eye Cancer Hope USA Events and Programming

One Rb World 2026 is made possible through generous support from families, foundations, and sponsors.

If you would like to help fund the 2026 One Rb World Conference and other retinoblastoma family events, please consider making an additional tax-deductible (in the USA) financial contribution when registering for the event.

Please Join Us!

We look forward to welcoming our global family to San Antonio, Texas, in September 2026.  Please join us to help shape a brighter future for all children, survivors, and families affected by retinoblastoma, and all in our community who care for them.

One Retinoblastoma World 2026

By World Eye Cancer Hope

One Retinoblastoma World 2026