Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
Refraction: deviation of 1.0 D from target refraction |
Proportion of patients in both treatment groups with a postoperative refraction in the second eye that deviates 1.0 diopters (D) from target refraction |
Four weeks post-operatively |
|
Secondary |
Refraction: deviation of 0.5 D from target refraction |
Proportion of patients in both treatment groups with a postoperative refraction in the second eye that deviates 0.5 diopters (D) from target refraction |
Four weeks post-operatively |
|
Secondary |
Change in visual acuity |
Visual acuity will be measured by ETDRS letter charts |
Baseline, 1 week after first-eye surgery and 4 weeks after second-eye surgery |
|
Secondary |
Complications |
The incidence of intraoperative and postoperative complications |
Intraoperatively and up to 4 weeks after second-eye surgery |
|
Secondary |
Patient reported outcome measures (PROMs): NEI VFQ-25 |
Patient satisfaction and vision-specific quality of life as measured by National Eye Institute Visual Function Questionnaire (NEI VFQ-25). |
Baseline and 3 months postoperatively |
|
Secondary |
Patient reported outcome measures (PROMs): Catquest |
Patient satisfaction and vision-specific quality of life as measured by Catquest questionnaire. |
Baseline and 3 months postoperatively |
|
Secondary |
Patient reported outcome measures (PROMs): HUI3 |
Health-related quality of life as measured by HUI3 (Health Utility Index Mark 3) questionnaire. |
Baseline, 1,4 weeks and 3 months postoperatively |
|
Secondary |
Patient reported outcome measures (PROMs): EQ-5D-5L |
Health-related quality of life as measured by EQ-5D-5L questionnaire. |
Baseline, 1,4 weeks and 3 months postoperatively |
|
Secondary |
Quality Adjusted Life Years (QALYs) |
Calculated based on generic health-related quality of life, using the EQ-5D-5L and HUI-3 questionnaires |
Baseline until 3 months postoperatively |
|
Secondary |
Costs per patient |
Cost per patient, including valuation of resource use by using the Dutch guidelines for cost-analyses or cost prices provided by the medical center. |
Baseline until 3 months postoperatively |
|
Secondary |
Incremental cost-effectiveness ratios (ICERs): QALY |
Evaluation of cost-effectiveness by using calculated costs per quality-adjusted life years (QALYs) |
Baseline until 3 months postoperatively |
|
Secondary |
Incremental cost-effectiveness ratios (ICERs): Target refraction |
Calculated costs per patient with a postoperative refraction within 1.0 D of target refraction |
Baseline until 3 months postoperatively |
|
Secondary |
Incremental cost-effectiveness ratios (ICERs): NEI VFQ-25 |
Calculated costs per clinically improved patient on the NEI VFQ-25 questionnaire |
Baseline until 3 months postoperatively |
|
Secondary |
Incremental cost-effectiveness ratios (ICERs): Catquest |
Calculated costs per clinically improved patient on the Catquest questionnaire |
Baseline until 3 months postoperatively |
|
Secondary |
Incremental cost-effectiveness ratios (ICERs): Visual acuity |
Calculated costs per patient with clinical improvement in (un)corrected distance visual acuity |
Baseline until 3 months postoperatively |
|
Secondary |
Budget impact |
Reported as a difference in costs. Different scenario's will be compared to investigate the impact of various levels of implementation (e.g. 25%, 50%, 75% of eligible patients). |
Baseline until 3 months postoperatively |
|