| A Study for Effective Gaze Fixation Induction Methods in PC-Based Visual Field Testing. |
|
Ji Hyoung Lee, Baek Hee Lee, Hyun Ji Park, Jeong Han Choi, Hee Cheon You, Ja Heon Kang |
1Department of Industrial and Management Engineering, POSTECH, Pohang, Korea.
2Department of Creative IT Excellence Engineering, POSTECH, Pohang, Korea.
3Department of Ophthalmology, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine, Seoul, Korea. kjh0614@khu.ac.kr |
| PC기반 시야검사를 통한 효과적인 시선고정 유도방법 연구 |
|
이지형1⋅이백희1⋅박현지1⋅최정한3⋅유희천1,2⋅강자헌3 |
Department of Industrial and Management Engineering, POSTECH1, Pohang, Korea
Department of Creative IT Excellence Engineering, POSTECH2, Pohang, Korea
Department of Ophthalmology, Kyung Hee University Hospital at Gangdong, Kyung Hee University College of Medicine3, Seoul, Korea |
|
|
| Abstract |
PURPOSE
The present study explored novel methods in visual field tests that actively induce the gaze of the examinee to the fixation target in the center vision and compared their effectiveness. METHODS: Four gaze induction methods (dot-on, dot-off, number-on, and number-off) were prepared by combining 2 types of fixation targets (dot and number) and 2 conditions of sound presence (on and off). The gaze induction methods were implemented to a PC-based visual field testing system and the 24-2 visual field testing protocol was administered to 14 participants without glaucoma. The performance of the gaze induction method was evaluated in terms of fixation error rate, target detection rate, and subjective satisfaction (7-point scale, 1 for least satisfied and 7 for most satisfied). RESULTS: The fixation error rates of dot-on (5.7%) and number-on (6.4%) were relatively lower than the other methods; the target detection rates of the induction methods were very high (95-96%) without significant differences, and the subjective satisfaction levels of dot-on (5.7) and number-on (5.4) were significantly higher than the other methods. CONCLUSIONS: In the present study we determined number-on as the preferred effective gaze induction method compared to the conventional dot-off method when fixation error rates and subjective satisfaction were considered. |
| Key Words:
Gaze induction;Glaucoma;Visual field test |
|
PDF Links
Full text via DOI
Download Citation
