Abstract
Purpose :
We recently proposed a new method (“Eyecatcher”) for rapid visual field assessment that combines an inexpensive eye tracker with a portable tablet computer [Jones et al, TVST, in press]. Eyecatcher does not require buttons or headrests: patients are simply required to look at fixed-luminance dots as they appear on the screen. Here we evaluate its use in people sat in a glaucoma clinic waiting area.
Methods :
Seventy-one people (from a planned target of 80; data collection ongoing) were tested using Eyecatcher while they waited for an appointment in a UK glaucoma clinic. The convenience sample included individuals with a wide range of glaucomatous field loss, as well as new referrals – many of whom likely do not have glaucoma (i.e., false positive referrals). All individuals also underwent a complete ophthalmic assessment as part of their scheduled appointment, including Standard Automated Perimetry (SAP).
Results :
Preliminary analyses indicated that Eyecatcher is fast (median duration: 2.5 minutes, including eye-tracker calibration), produces results in good agreement with SAP (see Fig 1), and is consistently rated as more enjoyable, less tiring, and easier to perform than SAP (all P < 0.001). Additional analyses, including test-retest reliability and concordance between HFA and SAP will be presented.
Conclusions :
Portable eye-movement perimetry provides a rapid, inexpensive, and easy way to assess visual field loss. Eyecatcher could be a useful tool for performing community case-finding or referral-refinement in glaucoma clinics. Limitations of the approach will also be discussed.
This abstract was presented at the 2019 ARVO Annual Meeting, held in Vancouver, Canada, April 28 - May 2, 2019.