These factsheets are provided in PDF format so that they can easily be printed out or saved to your computer.

The BUS factsheets have all been checked by medical professionals.

BUS factsheets

• About birdshot chorioretinopathy, full version
• About birdshot chorioretinopathy, short version
• Biologics and biosimilars: what’s the difference?
• DEXA (DXA) scan – measuring bone density
• Electroretinography (ERG) testing
• Folic acid and methotrexate: some Q&As
• What is an OCT scan?

Patient information factsheets

(also available as audio recordings and PDF’s for printing or saving). 

• Adalimumab 
• Azathioprine
• Calcium and Vitamin D (colecalciferol) supplements 
• Ciclosporin
• Infliximab
• Methotrexate
• Mycophenolate mofetil and mycophenolic acid
• Steroid tablets
• Tacrolimus

 Moorfields Eye Hospital leaflets

• Blepharitis
• Cataract surgery
• Epiretinal membrane
• Fluorescein and ICG angiography
• Ozurdex implants
• Steroid eye injections
• Vision and driving FAQs – Moorfields Eye Hospital
• YAG laser treatment for posterior capsular opacification after cataract surgery

Visual Fields test

• Visual Fields published by the American Academy of Ophthalmology.

 Intravitreal implants

Note: Iluvien is used in UK while the almost identical Yutiq is used in the US.  

Retisert was discontinued in the US in April 2026.  It was also not available for NHS use in the UK.

• Iluvien
• Retisert
• Yutiq

Article comparing Iluvien, Retisert and Yutiq https://www.drugs.com/medical-answers/differences-between-iluvien-retisert-yutiq-3451463/.

Steroid injection into suprachoroidal space

Note: Xipere is not available in UK (as at April 2026) but is available in US.

• Xipere

Immune system

You may find these Patient info factsheets useful.

• The immune system
• Immune suppression

Posters used at the first Birdshot Day 2010

Below are links to posters designed by Moorfields Eye Hospital staff.  We are very grateful to the staff for preparing these specially for the first Birdshot Day.  The posters on medicines summarise some of the side-effects and drug or food interactions for each medicine.

• Azathioprine poster
• Ciclosporin poster
• Mycophenolate poster
• Tacrolimus poster

The poster on ERG testing gives more information about the test and explains what is involved, using diagrams and photographs.

• ERG poster