Relation between change of effective lens position and toric IOL rotation after toric IOL implantation.
Can J Ophthalmol
; 2024 Jun 15.
Article
in En
| MEDLINE
| ID: mdl-38889881
ABSTRACT
OBJECTIVE:
To evaluate the relationship between change of effective lens position (ELP) and toric intraocular lens (IOL) rotation in patients with increasing postoperative refractive astigmatism after successful toric IOL implantation.METHODS:
The subjects include 61 people (61 eyes) with increasing residual astigmatism >0.5 D 3 months after successful toric IOL implantation. Clinical measurements included preoperative, 1-week, and 1-, 2-, and 3-month postoperative visual acuity; refraction; keratometer; anterior and posterior corneal astigmatism; ELP by Scheimpflug camera imaging; and IOL axis by slit-lamp biomicroscopic photograph with pupil dilation.RESULTS:
Residual astigmatism in postoperative month 3 (0.81 ± 0.50 D) is higher than that at postoperative week 1 (0.41 ± 0.38 D; p < 0.05). ELP decreased by 264.44 ± 163.25 µm, and the IOL rotated by 2.91 ± 1.44 degrees from week 1 to month 3 (p < 0.05). The ELP change had a positive correlation with IOL rotation (R2â¯=â¯0.383; pâ¯=â¯0.006), and the postoperative refractive astigmatic change had a positive correlation with ELP change (R2â¯=â¯0.272; pâ¯=â¯0.027) and IOL rotation (R2â¯=â¯0.272; pâ¯=â¯0.0001) from week 1 to month 3.CONCLUSION:
ELP change can influence toric IOL rotation and increase residual astigmatism after toric IOL implantation.
Full text:
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Database:
MEDLINE
Language:
En
Year:
2024
Type:
Article