Risk Factors Associated With Intraocular Lens Decentration After Cataract Surgery

Xu, Jie; Lin, Peimin; Zhang, Shaohua; Lu, Yi; Zheng, Tianyu

doi:10.1016/j.ajo.2022.05.005

Cited by 7 publications

(3 citation statements)

References 24 publications

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“…However, no significant correlation was found between angle α or angle κ and visual performance in our current study. A possible explanation is that both angle α and angle κ were significantly associated with IOL decentration, which was demonstrated in our previous study [ 22 ]. After adjusting for confounders through multiple regression analysis, angle α and angle κ, which were significant determinants of postoperative visual performance according to the univariate analyses (P < 0.05, Table 3 ), were excluded from the final prediction model.…”

Section: Discussionmentioning

confidence: 81%

Biometric factors associated with the postoperative visual performance of a multifocal intraocular lens

Xu,

Yang,

Lin

et al. 2024

Heliyon

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Section: Discussionmentioning

confidence: 81%

Biometric factors associated with the postoperative visual performance of a multifocal intraocular lens

Xu,

Yang,

Lin

et al. 2024

Heliyon

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“…AL and ACD are related to the IOL concentration after cataract surgery. The deeper the ACD, the greater the vertical concentration of the IOL (upward movement), which increases the patient's higherorder aberrations and worsens the patient's postoperative visual quality [38] . Therefore, to avoid refractive drift and IOL concentration in patients after cataract surgery, consideration of subtle differences in ACD among patients of different sexes and ethnicities has certain benefits for ensuring postoperative refractive quality.…”

Section: Ocular Biometric Characteristics Of Ethnic Groupsmentioning

confidence: 99%

Ocular biometric characteristics of Han ethnicity in Tianjin and Uyghur ethnicity in Xinjiang undergoing cataract surgery

Xu,

Feng,

Zhang

et al. 2024

Int J Ophthalmol

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AIM: To analyze and compare the differences among ocular biometric parameters in Han and Uyghur populations undergoing cataract surgery. METHODS: In this hospital-based prospective study, 410 patients undergoing cataract surgery (226 Han patients in Tianjin and 184 Uyghur patients in Xinjiang) were enrolled. The differences in axial length (AL), anterior chamber depth (ACD), keratometry [steep K (Ks) and flat K (Kf)], and corneal astigmatism (CA) measured using IOL Master 700 were compared between Han and Uyghur patients. RESULTS: The average age of Han patients was higher than that of Uyghur patients (70.22±8.54 vs 63.04±9.56y, P<0.001). After adjusting for age factors, Han patients had longer AL (23.51±1.05 vs 22.86±0.92 mm, P<0.001), deeper ACD (3.06±0.44 vs 2.97±0.37 mm, P=0.001), greater Kf (43.95±1.40 vs 43.42±1.69 D, P=0.001), steeper Ks (45.00±1.47 vs 44.26±1.71 D, P=0.001), and higher CA (1.04±0.68 vs 0.79±0.65, P=0.025) than Uyghur patients. Intra-ethnic male patients had longer AL, deeper ACD, and lower keratometry than female patients; however, CA between the sexes was almost similar. In the correlation analysis, we observed a positive correlation between AL and ACD in patients of both ethnicities (rHan=0.48, rUyghur=0.44, P<0.001), while AL was negatively correlated with Kf (rHan=-0.42, rUyghur=-0.64, P<0.001) and Ks (rHan= -0.38, rUyghur=-0.66, P<0.001). Additionally, Kf was positively correlated with Ks (rHan=0.89, rUyghur=0.93, P<0.001). CONCLUSION: There are differences in ocular biometric parameters between individuals of Han ethnicity in Tianjin and those of Uyghur ethnicity in Xinjiang undergoing cataract surgery. These ethnic variances can enhance our understanding of ocular diseases related to these parameters and provide guidance for surgical procedures.

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“…3 The various causes include trauma, pseudoexfoliation, small capsulorhexis, poorly constructed rhexis, irregular haptic placement, intraoperative zonular dialysis, high myopia, pre-existing zonulopathy, previous vitrectomy and systemic autoimmune pathologies. 4 Fixation of a decentred IOL capsular bag complex is always a challenge for any Ophthalmic surgeon, and various techniques have been described in the literature. The multiple options available to stabilize a decentred or subluxated IOL bag complex are by suturing the capsular bag to the sclera, iris sutured PCIOL, scleral fixated PCIOL and haptic fixation in the sclera.…”

Section: Introductionmentioning

confidence: 99%

Novel trocar assisted intraocular lens and capsular bag complex fixation

Parkash,

Gurnani,

Kaur

et al. 2023

European Journal of Ophthalmology

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Purpose To describe the innovative technique of trocar-assisted intraocular lens (IOL) and capsular bag complex fixation. Methods In this technique, initial pupil dilatation is achieved either with intracameral adrenaline or with the help of iris hooks. Automated anterior vitrectomy is performed in cases with vitreous prolapse. A 25 G trocar cannula is placed at the limbus through a paracentesis opposite the zonular dialysis area. The cannula lumen act as a guide to pass the double-arm polypropylene suture attached to the needle. This prevents any inadvertent corneal injury and acts as a perpendicular tract to pass the needle through IOL capsular bag complex. Results We performed this technique in 9 cases with an excellent outcome with a minimum of 3 months of follow-up. All patients had well-centred IOL. There was no incidence of corneal injury, Descemet membrane detachment, iris trauma, IOL tilt, decentration, dislocation, vitreous prolapse or retinal detachment. All patients achieved excellent visual acuity ranging from 6/12-6/6 postoperatively. Conclusion The novel trocar-assisted IOL bag complex fixation technique is very effective and allows smooth IOL fixation in technically challenging cases with IOL subluxation. The trocar acts as a guide to prevent injury to the surrounding tissue, and IOL fixation is achieved with minimal manipulations in the anterior chamber. It also prevents the need for IOL explantation in these cases.

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Risk Factors Associated With Intraocular Lens Decentration After Cataract Surgery

Cited by 7 publications

References 24 publications

Biometric factors associated with the postoperative visual performance of a multifocal intraocular lens

Biometric factors associated with the postoperative visual performance of a multifocal intraocular lens

Ocular biometric characteristics of Han ethnicity in Tianjin and Uyghur ethnicity in Xinjiang undergoing cataract surgery

Novel trocar assisted intraocular lens and capsular bag complex fixation

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