| Rank | Clinic Name | Patient Rating | Country | Lead Doctor | experience | Techniques | Best For | Why It’s Ranked | Accreditations |
|---|---|---|---|---|---|---|---|---|---|
| #1 | 4.7 / 5 (44 reviews) | Istanbul, Turkey | — | — | Consultation and individualized treatment planning | Children with retinoblastoma | Offers specialized ocular oncology services with personalized treatment plans. Clinic has International Health Tourism Authorization Certificate and serves both local and international patients. | International Health Tourism Authorization Certificate, Turkish Medical Association | |
| #2 | 4.6 / 5 (130 reviews) | Hamburg, Germany | 29+ years | Radiation therapy for colorectal cancer, Consultation with an ophthalmologist | — | — | International Organization for Standardization, Medical Travel Quality Alliance | ||
| #3 | 4.7 / 5 (7 reviews) | Hamburg, Germany | — | — | — | — | — | International Organization for Standardization, CERTKOM certificate for qualified pain therapy | |
| #4 | 4.7 / 5 (359 reviews) | Istanbul, Turkey | — | — | Chemotherapy, selective intra-arterial chemotherapy, brachytherapy | Pediatric retinoblastoma cases | Offers two specialized treatments for retinoblastoma (SIAC and brachytherapy). Provides chemotherapy with measures to reduce side effects. JCI-accredited hospital with pediatric oncology specialists. | International Organization for Standardization, Joint Commission International | |
| #5 | 4.6 / 5 (514 reviews) | Istanbul, Turkey | 22+ years | Radiation therapy for colorectal cancer, Cryotherapy | — | — | Planetree's Gold Certificate, International Accreditation System for Interventional Oncology Services (IASIOS) | ||
| #6 | 4.7 / 5 (441 reviews) | Barcelona, Spain | — | 23,000+ treatments | Retinal detachment surgery, membrane peeling, management of proliferative vitreoretinopathy, removal of subretinal silicone oil | Advanced retinal surgery cases | Offers advanced retinal surgery with Dr. Jordi Monés, who has performed 900+ treatments. JCI accredited with a 4.7 patient rating. | Joint Commission International , European Foundation for Quality Management | |
| #7 | 4.6 / 5 (214 reviews) | Istanbul, Turkey | — | — | Consultation with an ophthalmologist | — | — | Joint Commission International , Turkish Medical Association (Türk Tabıplerı Bırliği) | |
| #8 | 4.7 / 5 (134 reviews) | Istanbul, Turkey | 16+ years | Chemotherapy, enucleation, focused ultrasound ablation (HIFU) | Advanced retinoblastoma cases | Offers specialized chemotherapy protocols and surgical options like enucleation for advanced cases. JCI accredited with pediatric oncology expertise. | International Organization for Standardization, Joint Commission International | ||
| #9 | 4.5 / 5 (51 reviews) | Istanbul, Turkey | 76+ years | Enucleation of eye, Consultation with an ophthalmologist | — | — | Joint Commission International | ||
| #10 | 4.5 / 5 (156 reviews) | Tel Aviv, Israel | 38+ years34,000+ treatments | Chemotherapy for breast cancer, Radiation therapy for colorectal cancer | — | — | World's Best Smart Hospitals 2021 by Newsweek, World's Best Hospitals 2021 by Newsweek |