Equipment Research of Extraocular Muscle Strength and Strabismus Measurement
Abstract: Objective: To invent a new measurement method, we innovate an eye tracking positioning system, which combines software and hardware equipment to capture eye movements, analyzes extra ocu-lar muscle strength with the red and blue glasses, and compares with the common strabismus de-gree examinations according to the extra ocular muscle cooperative movement principle. Methods: We utilized the standard tracking eye direction system and conducted computer image analysis, which could also measure the extra ocular muscles movement and coordination. With the red and blue glasses, it can make the patients separate both eye views. 50 cases of concomitant strabismus patients (including 20 cases of intermittent exotropia strabismus) were included in this study. We compared the traditional methods (including the corneal light reflection method, prism covering method, visual arc inspection method and synoptophore method) with the new instrument for the strabismus degree detection by statistical analysis. Results: 1) Our new innovation device can easily acquire eye movement image of nine standard directions. 2) Binocular coordination test can defini-tively diagnose patients’ paralysis extra ocular muscle. 3) 50 cases of concomitant strabismus (ex-cept the intermittent exotropia patients) had utilized this new system to detect the angle and com-pare with the angle measurement from visual arc method. There is a significant difference (P < 0.05), yet the difference between the two means are smaller than 5 arc degrees meaning the new system generates acceptable results compared with those from the conventional method. 4) 20 cases with intermittent exotropia had been measured with the red and blue glasses supporting system compared with the traditional visual arc measurement. According to the finding, there is a significant difference (P < 0.05), yet the difference between the two means is smaller than 5 arc degrees meaning the new system generates acceptable results compared with those from the conventional method. Conclusion: The new computer system is an accurate system on the extra ocular muscle strength diagnosis, especially in the judgment of paralytic strabismus. Also, the squint angle detection result is accurate in concomitant strabismus (including intermittent exotropia) by using the red and blue glasses.
文章引用: 赖小兰 , 李晓洁 , 邓宏伟 , 钟华红 (2016) 眼外肌生物力量测量及斜视度检查设备研究。 眼科学， 5， 29-36. doi: 10.12677/HJO.2016.52006
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