Development and Validation of a Novel Stereoacuity Test Using Head-mounted Display
试验速览
- 阶段
- 不适用
- 入组人数
- 30
- 试验地点
- 1
- 主要终点
- Correlation between stereopsis with head mount display and stereopsis with Randot or TNO test
研究概览
简要总结
This prospective study investigated the validity and test-retest reliability of stereopsis test using head-mount display (HMD). Contour-based circles (crossed disparity: 1,960 to 195 arc of seconds(arc secs)) were generated as separate images on a high resolution phone display (Galaxy S7; Samsung, Suwon, Korea) using a HMD (Galaxy Gear VR; Samsung, Suwon, Korea). Two images were independently projected to each eye as graded circles with random dot background. While the position of the stimulus changed from among 3 possible locations, the subjects were instructed to select the circle with disparity by pressing the corresponding position on a keypad. The results of the new HMD stereotest were compared to those from standard Randot and TNO stereotests.
研究设计
- 研究类型
- Observational
- 观察模型
- Other
- 时间视角
- Prospective
入排标准
- 年龄范围
- 19 Years 至 60 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •The subjects who want or need to visual acuity test or to test for a prescription for glasses visited the hospital.
- •The Subjects' ages ranged from 19 to 60 years in the study.
排除标准
- •Ocular alignment was assessed with cover-uncover and alternate prism cover testing at distance and near. Significant exodeviation included exophoria was considered to be ≥6 prism diopters were excluded.
- •Subjects with a history of ocular surgery within 3 months of the study were excluded.
- •Foreigners or subjects who are unable to understand informed consent were excluded.
- •Subjects with a history of eye problems, including infection, inflammation, cataract, vitreous opacity or retinal diseases were excluded.
- •Subjects with corrected visual acuity of 20/32 in bad eye were excluded.
- •Subjects with significant refractive error considered to be ≥2.00 diopters of anisometropia were excluded.
- •A female who is pregnant, may be pregnant, or is lactating was excluded.
结局指标
主要结局
Correlation between stereopsis with head mount display and stereopsis with Randot or TNO test
时间窗: one visit
Stereopsis results was expressed as arc sec. The association between log arc sec in stereopsis with HMD display and Randot or TNO test were evaluated. Using Bland Altman plot, the mean differences between two stereopsis results were compared.
次要结局
- Test-retest variability of stereopsis using head mount display(one visit)