Devising and Evaluating an Adaptive Static-Automated Perimetry Test for Children: A Feasibility Study.

Area of Science:

• Ophthalmology
• Pediatric Optometry
• Visual Field Testing

Background:

• Standard visual field tests can be challenging for children due to their limited attention spans and ability to cooperate.
• Developing adaptive and engaging methods is crucial for obtaining reliable visual field data in pediatric populations.

Purpose of the Study:

• To evaluate the feasibility of a children's Static Automated Perimetry (cSAP) test designed for early termination.
• To determine if cSAP can yield clinically useful visual field information in children, even with abbreviated testing sessions.

Main Methods:

• The cSAP test incorporated engaging elements like dynamic fixation markers, gamified levels, and rewards.
• The test was validated on 10 adults with visual field loss and subsequently used to test 11 children aged 4-9 years.
• A dichoptic approach was employed on the Topcon Tempo Perimeter via the Open Perimetry Interface.

Main Results:

• cSAP provided a better estimate of the final visual field compared to a baseline method in adults, even when testing was stopped early.
• Most children (except the youngest, aged 4) engaged well with the cSAP test and produced reliable results.
• A learning effect was observed in younger children upon retesting after 3 months.

Conclusions:

• The children's Static Automated Perimetry (cSAP) test is a feasible and effective method for pediatric visual field assessment.
• cSAP offers design advantages over conventional Static Automated Perimetry for children and individuals unable to complete standard tests.