Related Experiment Video
Updated: Jul 15, 2026
09:11
Retinal Pathophysiological Evaluation in a Rat Model
Published on: May 6, 2022
Radiation retinopathy: case report and review
Abha Gupta1, Felipe Dhawahir-Scala, Amy Smith
1Manchester Royal Eye Hospital, Lister House, Manchester, UK. abha16@hotmail.com
BMC Ophthalmology
|April 7, 2007
Summary
This case study shows that diabetes combined with radiation therapy can rapidly worsen vision. Early detection and referral are crucial as no effective treatment currently exists for radiation retinopathy.
Area of Science:
- Ophthalmology
- Radiation Oncology
- Oncology
Background:
- Ocular damage from radiation therapy is a known complication.
- Factors influencing radiation retinopathy include dosage, fraction size, diabetes, hypertension, and prior chemotherapy.
- Radiation is increasingly used for ocular and orbital diseases.
Observation:
- A 55-year-old male with Type 2 Diabetes Mellitus and hypertension presented with epiphora after radiotherapy for nasal squamous cell carcinoma.
- Examination revealed significant retinal ischemia in both eyes, more consistent with radiation retinopathy than diabetic changes.
- Vision rapidly deteriorated from 6/36 (left) and 6/9 (right) to 3/60 (left) and 1/60 (right) over four months.
Findings:
- The patient's history of diabetes and radiation treatment likely potentiated radiation retinopathy.
- Rapid and severe vision loss occurred despite the absence of typical diabetic retinopathy.
- Bilateral pan-retinal photocoagulation was considered as a treatment option.
Implications:
- Highlights the critical interaction between diabetes and radiation therapy in causing severe visual impairment.
- Emphasizes the need for ophthalmologists and oncologists to recognize risk factors for radiation retinopathy.
- Stresses the importance of patient counseling, regular visual acuity monitoring, and timely ophthalmological referral due to the lack of effective restorative treatments.
