Children stick their old patches onto the chart to guide them to the buried treasure!
August 4th 2025
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Pirate patching chart
What is orthoptics?
Orthoptics is a specialised branch of healthcare dedicated to the assessment, diagnosis and management of binocular vision disorders, eye movement abnormalities, and related conditions.
Orthoptists are the experts in diagnosing and treating defects in eye movement and problems with how the eyes work together.
Careers
Discover a dynamic career in orthoptics, where you’ll diagnose and treat vision disorders, improving patients’ quality of life. Whether you’re just starting or advancing your expertise, find out how you can make a difference.
Find out everything you need to know about a career in orthoptics, from where you can study to different career routes.
Professional & Clinical
In this section, you’ll find professional guidance and clinical advice for members of the orthoptic workforce, whatever your career stage or specialism.
Search our library of standards, guidelines and other resources covering the full scope of orthoptic practice.
Union
BOSTU is the only union in the UK run by and for the orthoptic workforce. We provide work-related advice and support to individual members, as well as providing a voice for the orthoptic profession nationally
Reps provide support to members with workplace and employment issues, and can become involved in campaigning nationally.
News & Events
Read the latest news from across the profession, find out about upcoming events, and access our fortnightly e-zine, Parallel Vision.
About BIOS
We are the professional body and trade union for orthoptists and orthoptic clinical assistants across the UK and Ireland.
Information and resources to support our members in promoting orthoptics.
Members
Members of BIOS receive comprehensive protection, exclusive resources and services, and expert advice and guidance.
Members can now download BIOS member logos to highlight their membership, such as in email footers or conference presentations.
