International Journal of Ophthalmology | VOL. 15
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The binocular intraocular lens power difference in eyes with different axial lengths

Publication Date Jun 18, 2022

Abstract

AIM: To investigate the binocular intraocular lens (IOL) power difference in eyes with short, normal, and long axial lengths (AL) using Lenstar LS 900 optical biometry. METHODS: A total of 716 (1432 eyes) participants were included. The groups were categorized into short (group A: AL<22 mm), normal (group B: 22 mm≤AL≤25 mm), and long AL groups (group C: AL>25 mm). The central corneal thickness (CCT), anterior chamber depth (ACD), lens thickness (LT), AL, anterior corneal keratometry, white-to-white (WTW), pupil diameter (PD), as well as IOL power calculated using embedded Barrett formula were assessed. Bland-Altman plots were used to test the agreement of the binocular parameters. RESULTS: In group A, the CCT of the right eye was significantly thinner than that of the left eye (P=0.044) with a difference of -2±8 μm [95% limits of agreement (LoA), -17.8 to 13.2 μm]. For group B, the PD and IOL power in the right eye were significantly lower than those of the left eye (P=0.001, <0.001) with a difference of -0.05±0.32 mm (95%LoA, -0.68 to 0.58 mm) and -0.18±1.01 D (95%LoA, -2.2 to 1.8 D). The AL of right eye was longer than that of the left eye (P=0.002) with a difference of 0.04±0.25 mm (95%LoA, -0.45 to 0.52 mm). No significant difference was observed for all the binocular parameters in group C. The percentage of participants with binocular IOL power difference within ±0.5 D were 62% (31/50), 68.3% (339/496), and 38.8% (66/170) in groups A, B, and C, respectively. CONCLUSION: The binocular par...

Concepts
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Intraocular Lens Power
Axial Lengths
Intraocular Lens
Limits Of Agreement
Intraocular Lens Power Difference
Central Corneal Thickness
Pupil Diameter
Anterior Chamber Depth
White-to-white
Half Of Participants

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