Visual Outcomes, Visual Quality and Patient Satisfaction: Comparing a Blended Bifocal Approach to Bilateral Extended Depth of Focus Intraocular Lens Implantation

Figures & data

Table 1 Demographic and Examination Data by Group

	Blended (n = 23 Subjects, 46 Eyes)	EDOF (n = 25 Subjects, 50 Eyes)	p
Age	68.8 ± 10.4 (29 to 82)	71.0 ± 7.2 (46 to 83)	0.39
Sex (female/male)	15/8	19/6	0.41
Days since surgery	252 ± 90 (91 to 403)	459 ± 129 (153 to 635)	0.001*
Refraction
Manifest cylinder (D)	0.45 ± 0.0.37 (0.00 to 1.25)	0.35 ± 0.32 (0.00 to 1.25)	0.14
Spherical equivalent (D)	−0.06 ± 0.38 (−0.88 to 0.63)	0.05 ± 0.32 (−0.88 to 0.88)	0.13
Visual acuity (binocular, logMAR)
Uncorrected distance	0.00 ± 0.08 (−0.10 to 0.20)	−0.03 ± 0.07 (−0.20 to 0.10)	0.12
Uncorrected intermediate	0.32 ± 0.17 (0.10 to 0.90)	0.18 ± 0.09 (0.00 to 0.30)	0.001*
Uncorrected near	0.26 ± 0.21 (−0.10 to 0.80)	0.30 ± 0.14 (0.00 to 0.50)	0.44
Best corrected distance	−0.05 ± 0.08 (−0.10 to 0.20)	−0.08 ± 0.06 (−0.20 to 0.00)	0.13
Best distance-corrected intermediate (n = 16)	0.28 ± 0.16 (0.00 to 0.70)	0.15 ± 0.08 (0.00 to 0.30)	0.007*
Best distance-corrected near (n = 16)	0.25 ± 0.21 (−0.00 to 0.80)	0.31 ± 0.13 (0.1 to 0.50)	0.42

Note: *Indicates statistical significance.

Abbreviations: D, Diopter; logMAR, log of the Minimum Angle of Resolution.

Figure 1 Cumulative binocular uncorrected acuity at distance, intermediate and near, by the IOL group.

Table 2 Summary of CATQuest Results

Satisfaction	Blended	EDOF	Overall Difficulty	Blended	EDOF
Very satisfied	39%	56%	None	39%	48%
Fairly satisfied	48%	24%	Some	57%	44%
Cannot decide	0%	4%	Great	4%	4%
Fairly dissatisfied	13%	8%	Cannot Decide	0%	4%
Very dissatisfied	0%	8%	Total	100%	100%
Total	100%	100%

Figure 2 CATQuest questionnaire: percentage of subjects reporting “No” difficulty by task and group.

Figure 3 VFQ questionnaire: percentage of subjects reporting “No” or “Little” difficulty by task and group.

Table 3 Glare, Haloes and Starburst Frequency and Severity by Group

		n	Frequency		Severity
			Quite Often	Very Often	Moderate	Severe
Glare	EDOF	25	4	1	7	2
	Blended	23	4	0	7	0
Haloes	EDOF	25	4	5	8	3
	Blended	23	7	4	9	1
Starbursts	EDOF	25	2	5	3	4
	Blended	23	3	3	2	0

Figure 4 Quality of Vision questionnaire: aggregate results by group.