Influencing factors comparing different vault groups after phakic implantable collamer lens implantation: review and meta-analysis

Table 1 Characteristics and quality of studies included in this systematic review

Article	Design	Country	Age	Duration (Month)	Size/eyes (L/N/H)	Method	Factor	NOS (S + C + E = T)
Qi GW 2020 [23]	CSS	China	27.2 ± 6.4	3	22/86/10	Pentacam	[(1)(2)(4)(8)] (7)(10)(11)(12)	4 + 1 + 2 = 7
Wang J 2021 [24]	CSS	China	24.40 ± 5.76	12	4/68/8	Pentacam	[(1)(2)(17)] (16)	4 + 2 + 2 = 8
Xiong Y 2020 [27]	CSS	China	28.40 ± 7.40	0.25	10/246/20	AS-OCT	[(1)(2)(3)] (4)(5)(6)(7)(8) (9)(10)(11)(12)	3 + 1 + 3 = 7
Wu Y 2022 [25]	CSS	China	23.60 ± 4.35	3–6	0/39/19	Pentacam	[(1)(2)(5)(10)(9)(13)] (4)(6)(7)(11)(12)(14)(15)	3 + 2 + 3 = 8
Li N 2019 [22]	CSS	China	25.17 ± 4.57	24	41/126/21	Pentacam	[(1)(2)(4)(8)] (7)(10)(11)	4 + 1 + 3 = 8
Zhang X 2021 [28]	1:1 CCT	China	18~47	12–24	76/140/58	AS-OCT	[(1)(2)(3)(6)(8)(10)(16)](7)(11)	4 + 1 + 2 = 7
Xi H 2022 [26]	CSS	China	28.27 ± 7.39	1	12/62/24	AS-OCT	[(1)(2)(3)(4)(5)(6)] (10)	4 + 1 + 3 = 8
Cui TF 2019 [21]	1:1 CCT	China	26.2 ± 8.4	12	38/70/29	Pentacam	[(1)(3)(6)(16)] (2)(7)	4 + 2 + 2 = 8
Kyum KW 2012 [20]	CSS	Korea	26.1 ± 4.0	2	8/93/29	AS-OCT	[(1)(3)] (2)(10)(14)	4 + 2 + 2 = 8
Khan MA 2022 [19]	1:2 CCT	Japan	28.93 ± 5.26	12	27/54/0	AS-OCT	[(1)(17)(18)(12)] (2)(7)(9)(10)(11)(14)(19)	4 + 2 + 3 = 9
Chen Q 2020 [18]	1:2 CCT	China	25.13 ± 5.29	1	0/54/27	Pentacam	[(4)(16)(19)] (1)(2)(3)(6)(7)(8)(10)(14)(17)	4 + 1 + 3 = 8
Cerpa MS 2021 [9]	CSS	Spain	32.27 ± 7.56	4	34/272/54	AS-OCT	[(1)(6)(7)(10)(17)] (2)(9)(11)(19)(20)	4 + 2 + 3 = 9
Alfonso JF 2012 [17]	CS	Spain	31.25 ± 6.91	3	65/227/31	AS-OCT	[(1)(2)]	4 + 1 + 3 = 8

CSS, case series study; CCT, case-control study; CS, cohort study. L/N/H, low vault/ Normal vault/ High vault. S + C + E = T, population selectivity + comparability between groups + outcome/exposure factor measure = total score. Influencing factors: (1) ACD; (2) hWTW; (3) LT, lens thickness; (4) ACV, anterior chamber volume; (5) ACA, anterior chamber angle; (6) ICL-size; (7) ICL-SE; (8) AL, axial length; (9) CCT, central corneal thickness; (10) age; (11) Kf (12) Ks (13) LDist, Alpha angle; (14) pupil diameter; (15) Kappa angle; (16) posterior chamber structure, including posterior chamber angle, ciliary processes height (T value), or distance between STS plane and crystalline lens (STSL); (17) crystalline lens, including CLR and LC, its rise and curvature; (18) iris morphology, iris concavity; (19) gender; (20) ATA, angle to angle distance. Factors in ‘[]’ are significant ones in the corresponding literature

ISSN: 1471-2415