Evaluation of Lag of Accommodation with Full-Field Diffusion Optics Technology™ (DOT) Contrast Management Spectacle Lenses in Emmetropic Children

Figures & data

Table 1 Participant Characteristics (n = 30)

		OD	Dominant Eye
Refractive error (mean ± SD)	Sphere	0.43 ± 0.30 (−0.50, 0.87)	0.42 ± 0.30 (−0.25, 0.87)
(min, max)	Cylinder	−0.42 ± 0.25 (−1.00, 0.00)	−0.42 ± 0.24 (−1.00, −0.12)
Visual Acuity (unaided) (logMAR)		−0.05 ± 0.07	−0.07 ± 0.14
(min, max)		(−0.18, 0.12)	(−0.80, 0.12)

Figure 1 The scatter plot shows the correlation of LOA between the contrast management and control spectacles in the right eyes of each participant (n=30).

Figure 2 The Box and Whisker plot shows the distribution of LOA with contrast management and control spectacles in the right eye. The circles represent the outliers for the contrast management spectacles and the triangles represent the outliers for the control spectacles.

Figure 3 The scatter plot shows the correlation of LOA with contrast management and control spectacles in the dominant eye of each participant.

Figure 4 The Box and whisker plot shows the distribution of LOA between contrast management and control spectacles in the dominant eye. The circles represent the outliers for the contrast management spectacles and the triangles represent the outliers for the control spectacles.

Table 2 Lag of Accommodation with Contrast Management and Control Spectacles in the Right Eye and Dominant Eye for the Age Groups 7–11 Years (n=19) and 12–17 Years (n=11); Mean ± SD, (Median)

Lag of Accommodation	Right Eye			Dominant Eye
	Age 7–11 years	Age 12–17 years	p-value	Age 7–11 years	Age 12–17 years	p-value
	Sph:0.45 ± 0.23	Sph: 0.27 ± 0.38		Sph: 0.46 ± 0.20	Sph:0.22 ± 0.38
	Cyl:-0.31 ± 0.16	Cyl:-0.57 ± 0.27		Cyl:-0.30 ± 0.13	Cyl:-0.57 ± 0.28
Contrast management	0.52D ± 0.29D(0.46D)	0.67D ± 0.51D(0.42D)	0.17	0.52D ± 0.32D(0.46D)	0.73D ± 0.50D(0.77D)	0.23
Control	0.58D ± 0.28D(0.51D)	0.66D ± 0.47D(0.44D)	0.65	0.61D ± 0.23D(0.55D)	0.79D ± 0.44D(0.72D)	0.18
p-value	0.32	0.71		0.23	0.45

Table 3 Lag of Accommodation with Contrast Management and Control Spectacles in the Right Eye and Dominant Eye for Male (n=10) and Female (n=20) Participants (Mean ± SD, (Median))

Lag of Accommodation	Right Eye			Dominant Eye
	Male	Female	p-value	Male	Female	p-value
	Sph: 0.47 ± 0.21	Sph:0.32 ± 0.39		Sph:0.50 ± 0.20	Sph:0.25 ± 0.37
	Cyl: −0.36 ± 0.23	Cyl: −0.38 ± 0.20		Cyl:-0.39 ± 0.22	Cyl: −0.40 ± 0.20
Contrast management	0.44D ± 0.25D(0.46)	0.64D ± 0.43D(0.44)	0.15	0.49D ± 0.33D(0.40)	0.65D ± 0.43D(0.58)	0.19
Control	0.62D ± 0.16D(0.60)	0.61D ± 0.42D(0.51)	0.99	0.58D ± 0.13D(0.55)	0.72D ± 0.39D(0.69)	0.93
p-value	0.06	0.47		0.49	0.24