UNASSIGNED: This was a single-visit, prospective, randomized, subject-masked study of emmetropes (ametropes ±1.00D or less in each meridian) with no history of myopia control treatment. Unaided logMAR visual acuity was measured, and ocular dominance was determined using the sighting method. In a randomized order, participants wore plano full-field contrast management (DOT) spectacles (no clear central aperture) or control spectacles (standard single vision spectacle lenses). Each participant was given 5 minutes for adaptation to the respective lenses before open field autorefraction measurements were taken at 6 meters and 40 cm. Ten measurements were taken for each eye. Data were evaluated from the right eye and the dominant eye separately.
UNASSIGNED: A total of 30 participants (20 females and 10 males) with a mean age of 10.4 ± 2.8 (7 to 17) years completed the study. There was no significant difference in right eye mean LOA with contrast management spectacles 0.57 ± 0.39D versus control spectacles 0.62 ± 0.34D; Wilcoxon test, p = 0.37. For dominant eyes, LOA values were 0.60 ± 0.40D and 0.68 ± 0.33D with contrast management spectacles and control spectacles, respectively (p = 0.14). Additionally, no significant difference was observed in mean LOA between males and females or between age groups (7-11 years vs 12-17 years) for either right or dominant eyes with contrast management or control spectacles (all p > 0.05).
UNASSIGNED: Full-field contrast management spectacle lenses had no significant effect on LOA compared to standard single vision spectacle lenses, indicating no differential impact on accommodative response over the short period of lens wear tested.
■这是一次访问,prospective,随机化,无近视控制治疗史的Emmetrops(每个子午线的ametrops±1.00D或更小)的主题掩盖研究。测量了单独的LogMAR视敏度,并且使用瞄准方法确定了眼优势度。按照随机顺序,参与者佩戴平面全视野对比管理(DOT)眼镜(无清晰中央光圈)或对照眼镜(标准单眼眼镜片).在6米和40厘米处进行开场自折射测量之前,给每个参与者5分钟以适应各自的镜片。对每只眼睛进行10次测量。分别从右眼和优势眼评估数据。
■共有30名参与者(20名女性和10名男性),平均年龄为10.4±2.8(7至17)岁。对比管理眼镜0.57±0.39D与对照眼镜0.62±0.34D的右眼平均LOA无显著差异;Wilcoxon检验,p=0.37。对于占优势的眼睛,对比管理眼镜和对照眼镜的LOA值分别为0.60±0.40D和0.68±0.33D,分别(p=0.14)。此外,对比管理或对照眼镜的右眼或优势眼的平均LOA在男性和女性之间或年龄组之间(7-11岁vs12-17岁)均无显著差异(均p>0.05).
■与标准单视眼镜片相比,全视野对比度管理眼镜片对LOA没有显着影响,表明在测试的镜片佩戴的短时间内对调节响应没有不同的影响。