Schumacher Heidi, Garaygay Giancarlo, Ayagalria Aana, Lauano Bryant Ikaika, Marshall Denise M, Townley J Richard, Arnold Robert W
Alaska Blind Child Discovery, Alaska Children's EYE & Strabismus, Anchorage, Alaska, 99508, USA.
Service High School, Anchorage, Alaska, USA.
Clin Ophthalmol. 2025 Sep 2;19:3153-3166. doi: 10.2147/OPTH.S545397. eCollection 2025.
Portable sphero-cylinder refraction is useful for remote medical missions and self-checking. A novel, inexpensive, handheld optical scope with an internal vision chart and adjustable diopter lens, called the Moptim MRT-200, was therefore validated.
Young, capable patients from a pediatric eye practice had dry refraction estimates with the Moptim MRT-200, Adaptica 2WIN photoscreener, and Monocular Retinomax compared with actual refined retinoscopy. Vector-converted sphero-cylinder refractions and the univariate ABCD Ellipsoid were used for comparison as well as monocular visual acuity.
206 racially diverse, high-risk refractive patients with median "Ellipsoid-Gap" of 3.5 had high correlation spherical equivalent and similar ABCD Ellipsoid comparing Moptim MRT-200, 2WIN and Retinomax (Kruskal Wallis X(5) = 4.2, p = 0.52) however the 61 patients with blur associated with Ellipsoid gap over 5.0 had better refractive accuracy with 2WIN and Retinomax than Moptim MRT-200 (p < 0.001). Visual acuity with Moptim MRT-200 had a weak correlation (ICC.41 AND.47) and a Bland-Altman mean difference of approximately 1 logMAR line less fine than the actual phoropter refraction.
Precise sphero-cylinder estimation with the Moptim MRT-200 was too complex for lay screeners and many young patients, especially compared to 2WIN and Retinomax; however, rapid estimation of spherical refraction was feasible and valid.
便携式球柱面验光仪对远程医疗任务和自我检查很有用。因此，一种名为Moptim MRT - 200的新型、廉价、带有内部视力表和可调节屈光度镜片的手持式光学仪器得到了验证。
来自儿科眼科诊所的年轻且有能力的患者，使用Moptim MRT - 200、Adaptica 2WIN照片筛选仪和单眼视网膜镜进行验光，并与实际的精确视网膜检影法进行比较。使用矢量转换的球柱面验光结果和单变量ABCD椭球体进行比较，同时也比较单眼视力。
206名种族多样、高风险屈光不正患者的“椭球体间隙”中位数为3.5，比较Moptim MRT - 200、2WIN和视网膜镜时，球镜等效值具有高度相关性，且ABCD椭球体相似（Kruskal Wallis X(5) = 4.2，p = 0.52）；然而，61名与椭球体间隙超过5.0相关的模糊患者，使用2WIN和视网膜镜时的屈光准确性优于Moptim MRT - 200（p < 0.001）。Moptim MRT - 200的视力相关性较弱（组内相关系数ICC为0.41和0.47），且Bland - Altman平均差异比实际验光仪验光大约低1个logMAR行。
对于非专业筛查人员和许多年轻患者来说，使用Moptim MRT - 200进行精确的球柱面验光过于复杂，尤其是与2WIN和视网膜镜相比；然而，快速估计球镜屈光度数是可行且有效的。
