Welcome to ISOO Rio 2026
We look forward to welcoming you to Rio, for an unforgettable edition of the International Society of Ocular Oncology’s global meeting. Please read the information below before proceeding with your registration.
Important Dates
- Early: from Aug 1, 2025 to Nov 30, 2025 (Great rates available — don’t miss the savings!)
- Advance: from Nov 31, 2025 to Jan 15, 2026
- Late/On-Site: from Jan 16, 2026 to March 21, 2016
Early: from Aug 1, 2025 to Nov 30, 2025 (Great rates available — don’t miss the savings!)
What Your Full Registration Includes:
| User type |
Who they are
|
What’s included
|
|---|---|---|
| Member | Current ISOO Ordinary, Collaborating, Allied or Emeritus member in good standing. | Welcome Reception • All scientific sessions • Coffee breaks & conference lunches • Business Meeting • Voting rights. |
| Non-Member | Clinician, scientist or allied professional not holding ISOO membership. | Welcome Reception • All scientific sessions • Coffee breaks & conference lunches. |
| Member-in-Training | An ISOO member who is a resident, fellow, or student (training status already verified). | Same as Member plus discounted fee. |
| Non-Member-in-Training | Resident, fellow, or student who is not yet an ISOO member (proof of training required). | Welcome Reception • All scientific sessions • Coffee breaks & conference lunches • Discounted fee. |
| Spouse / Guest | Adult partner, family member or friend attending with a paid delegate. | Welcome Reception • Named Lectures • Award Ceremonies • Conference lunches. Children ≤ 12: free badge (no tickets needed for social events). |
| Industry Representative | Employee or consultant attending on behalf of a commercial company (pharma, device, biotech, etc.). | Welcome Reception • All scientific sessions • Coffee breaks & conference lunches. Badge shows “Industry”. Presentation rights not included. |
With the exception of the Welcome Reception on July 18 – which is included in the registration fee and will have badge-controlled access – other evening social activities are ticketed (Gala Dinner & Carnival Party), require separate tickets and are subject to limited availability.
Social event tickets are not sold separately and must be purchased through the registration profile of the main participant, either at the time of registration or later.
Single Day Registration:
You may register to attend only one day.
To attend two or more days, you must purchase a full-meeting registration (all five days)
- Tuesday, March 17th: Pre-Day
- Wednesday, March 18th: Retinoblastoma
- Thursday, March 19th: Uveal Melanoma & Intraocular Tumors
- Friday, March 20th: Intraocular Tumors & Ocular Surface Tumors
- Saturday, March 21st: Eyelid & Orbital Tumors.
Full Registration Fees
Registration fees vary based on your World Bank income group and selected registration category.
When filling out the registration form, fees will be automatically displayed according to your country and category. You can check the country classification by income group here if you’d like to verify your income level in advance.
See the tables below.
Early Registration — on or before 30 Nov 2025
| Income Level* |
Member
|
Non-Member
|
Member in Training
|
Non-Member in Training
|
Industry Rep.
|
Spouse / Guest
|
|---|---|---|---|---|---|---|
| Low & Lower-Middle | $270 | $490 | $165 | $275 | $1,400 | $350 |
| Upper-Middle | $490 | $930 | $220 | $330 | $1,400 | $350 |
| High Income | $710 | $1,370 | $330 | $440 | $1,400 | $350 |
| Register now | Register now | Register now | Register now | Register now | Register now |
Advance Registration — on or before 15 Jan 2026
| Income Level* |
Member
|
Non-Member
|
Member in Training
|
Non-Member in Training
|
Industry Rep.
|
Spouse / Guest
|
|---|---|---|---|---|---|---|
| Low & Lower-Middle | $325 | $545 | $210 | $375 | $1,500 | $350 |
| Upper-Middle | $600 | $1,040 | $275 | $440 | $1,500 | $350 |
| High Income | $875 | $1,535 | $415 | $550 | $1,500 | $350 |
Late & On Site Fee — after 16 Mar 2026
| Income Level* |
Member
|
Non-Member
|
Member in Training
|
Non-Member in Training
|
Industry Rep.
|
Spouse / Guest
|
|---|---|---|---|---|---|---|
| Low & Lower-Middle | $380 | $600 | $255 | $485 | $1,700 | $450 |
| Upper-Middle | $710 | $1,150 | $325 | $550 | $1,700 | $450 |
| High Income | $1,040 | $1,700 | $480 | $660 | $1,700 | $450 |
(*) Income groups follow the World‑Bank classification linked above.
One Day Only & Pre Day Fees
| Category |
Low & Lower Middle
|
Upper Middle
|
High Income
|
|---|---|---|---|
| One Day Only — Member (Wed, Thu, Fri or Sat) | $200 | $200 | $300 |
| One Day Only — Non Member (Wed, Thu, Fri or Sat) | $275 | $275 | $375 |
| Pre Day Tuesday 17 Mar* | Early/Advance: $100 | Early/Advance: $100 | Early/Advance: $100 |
| Single Day | Late/On-Site: $150 | Late/On-Site: $150 | Late/On-Site: $150 |
| Register now | Register now | Register now |
(*) Pre-Day is included for full-meeting registrants.
Social Activities Fees
| Activity |
Early
|
Advance
|
Late / Onsite (*)
|
|---|---|---|---|
| Gala Dinner - Thursday – March | $170 | $180 | $205 |
| Carnival Party - Friday – March 20 | $155 | $165 | $190 |
| Register now | Register now | Register now |
(*) subject to limited availability.
Full registrants can buy tickets for family & friends
Bringing Guests?
Here’s what you need to know
- Guest badge fee
- Early / Advance: USD $350
- Late / On-site: USD $450
- Fee includes: the Opening Ceremony, Welcome Reception, three conference lunches, access to Award Ceremonies, and access to two Named Lectures.
- Not included: Scientific sessions and tickets for the Gala Dinner and Carnival Party are not included.
Visa Information
Need a visa to attend? Visit the visa information page for guidance and support documents:
Visa Information
Contact & Support
- Technical Support: admin@isoo.org
- Conference Questions & Local Support: fernanda@fernandapresteseventos.com.br