The Individualised Perimetry Progression Observations in glaucoma Study (IPPOS) is a longitudinal study following people with glaucoma every 4 months over 3 years at the [Lions Eye Institute](https://www.lei.org.au). The main novel measurement is an implementation of the ARREST visual field testing approach which adds locations for testing to the visual field without increasing test times.
<h3>Key facts</h3>
<ul>
<li>Commenced October 2023 with scheduled completion late 2027</li>
<li>Collecting at baseline visit: On-Off Macular Sensitivity, Frequency of Seeing Curves, Quality of Life Survey</li>
<li>Collecting every 4 months on all eyes: ARREST fields, 24-2 fields, OCT, OCTA</li>
</ul>
<h3>Investigators</h3>
<ul>
<li>Prof Allison McKendrick</li>
<li>Prof Bill Morgan</li>
<li>Prof Andrew Turpin</li>
<li>Dr Vanessa Tang</li>
<li>Dr Vasanth Muthusamy</li>
<li>Dr Geoffrey Chan</li>
</ul>
<h3>Progress</h3>
<ul>
<li>April 2024: 81 baseline visits complete, 30 second visits complete.</li>
<li>June 2024: 98 baseline visits complete, 50 second visits complete, 9 third visits complete.</li>
</ul>
<h3>Publications</h3>
<ul>
<li>Andrew Turpin, Vanessa Tang, Bill Morgan, Allison McKendrick. "Measuring individual perimetric variability in glaucoma". Presented at <a href="https://www.arvo.org/annual-meeting/">ARVO</a> May 2024, Seattle.
<a href="https://osf.io/3vtp2">Download pdf</a>
</li>
</ul>
[1]: https://osf.io/3vtp2
