To develop a presentation protocol for the new Frisby-Davis 2 (FD2) distance stereoacuity test. Prospective data collection. Stereoacuity was tested monocularly and binocularly in 95 patients with a variety of strabis...To develop a presentation protocol for the new Frisby-Davis 2 (FD2) distance stereoacuity test. Prospective data collection. Stereoacuity was tested monocularly and binocularly in 95 patients with a variety of strabismic and nonstrabismic conditions, using the FD2, employing a modified staircase procedure. The Preschool Randot Stereoacu-ity test and the near Frisby test were used to determine whether a patient was stereoblind. Under monocular conditions, 35 (37% ) of 95 patients passed at least the largest disparity of the FD2 indicating a problem with monocular cues. The binocular protocol was then modified to include a monocular test phase. Using the new protocol, if a patient could achieve the same stereoacuity under monocular and binocular conditions, they were deemed to have no stereopsis. Testing 28 additional stereoblind patients using the new modified protocol revealed no false positives. The FD2 stereotest is a useful measure of distance stereoacuity, provided the presentation protocol accounts for monocular cues.展开更多
文摘To develop a presentation protocol for the new Frisby-Davis 2 (FD2) distance stereoacuity test. Prospective data collection. Stereoacuity was tested monocularly and binocularly in 95 patients with a variety of strabismic and nonstrabismic conditions, using the FD2, employing a modified staircase procedure. The Preschool Randot Stereoacu-ity test and the near Frisby test were used to determine whether a patient was stereoblind. Under monocular conditions, 35 (37% ) of 95 patients passed at least the largest disparity of the FD2 indicating a problem with monocular cues. The binocular protocol was then modified to include a monocular test phase. Using the new protocol, if a patient could achieve the same stereoacuity under monocular and binocular conditions, they were deemed to have no stereopsis. Testing 28 additional stereoblind patients using the new modified protocol revealed no false positives. The FD2 stereotest is a useful measure of distance stereoacuity, provided the presentation protocol accounts for monocular cues.
基金国家自然科学基金项目(42362023)陕西省教育厅青年创新团队项目(24JP217,22RCYPJB0103)+2 种基金榆林市青年科技新星项目(2024-KJZG-QNXX-007)陕西省科技厅项目(2025JC-YBQN-456,2025JC-YBMS-452)中国科学院洁净能源创新研究院-榆林学院联合基金项目(YLU-DNL Fund 2022012)。
