Outcomes of Flanged Intrascleral Intraocular Lens Fixation with Single Needle Techniques in Traumatic Eyes: An Interventional Case Series
Keywords:
Intraocular lens, traumatic eye injury, flanged intrascleral intraocular lens fixation, scleral intraocular lens fixationAbstract
Purpose: To propose and determine the clinical outcomes and safety of flanged intrascleral intraocular lens (IOL) fixation with a new single needle technique in traumatic eye injury.
Methods: Eyes with traumatic cataract with inadequate posterior capsule support, aphakia, or lens dislocation from traumatic eye injury were operated using flanged intrascleral IOL fixation with single needle techniques. Preoperative demographic data, best-corrected visual acuity (BCVA), refraction and complications were collected. Sub-analysis to compare fixating locations between 12-6 and 3-9 o’clock was performed.
Results: Ten eyes from 10 patients were reviewed. After surgery, BCVA improved to 0.28 logMAR,P < 0.001. Mean post-operative final manifest refraction (Spherical Equivalent) at the third month of follow-up was -0.15 diopters (D). The mean difference between the target refraction and final manifest refraction was 0.05 D. For the sub-analysis, there was a significant difference in the direction shift from the target refraction between the 2 locations. A minus shift from the target refraction occurred in location 3-9 o’clock, whereas a plus shift occurred mostly in location 12-6 o’clock (P=0.02). IOL fixed at location 3-9 o’clock had a lesser estimated refractive error (75% within 0.5 D) compared to that at location 12-6 o’clock (16.7%). Two eyes with vitreous hemorrhage were observed after surgery.
Conclusions: Flanged intrascleral IOL fixation with single needle technique resulted in good visual outcome and is a safe implantation technique in traumatic eye injury. Our data suggested that IOL fixed at location 3-9 o’clock tended to have a minus shift from the target refraction in contrast to IOL fixed at location 12-6 o’clock, which showed a plus shift.
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The Thai Journal of Ophthalmology (TJO) is a peer-reviewed, scientific journal published biannually for the Royal College of Ophthalmologists of Thailand. The objectives of the journal is to provide up to date scientific knowledge in the field of ophthalmology, provide ophthalmologists with continuing education, promote cooperation, and sharing of opinion among readers.
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