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مقاله
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Abstract
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Title:
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Comparative analysis of the visual performance after implantation of the Toric Implantable Collamer Lens (TICL) in stable keratoconus: 4-year follow-up
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Author(s):
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Farideh Doroodgar, Azad Sanginabadi,Feiz Niazi ,Cyrus AliNia ,Eznollah Azargashb, Alireza BaradaranRafie
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Presentation Type:
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Oral
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Subject:
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Cornea and Anterior Segment
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Others:
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Presenting Author:
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Name:
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Farideh Doroodgar
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Affiliation :(optional)
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Negah eye hospital
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E mail:
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farinaz_144@yahoo.com
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Phone:
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09125259912
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Mobile:
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09125259912
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Purpose:
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To report on 4-year postoperative satisfaction with the Toric Implantable Collamer Lens (TICL) for stable keratoconus by evaluating vision, refraction, contrast sensitivity, aberrometry, and defocus curve and comparing them with similar postoperative outcomes.
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Methods:
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Forty eyes of 24 patients with stable keratoconus with myopia between 0.00 and -18.00 diopters (D) and astigmatism between 1.25 and 8.00 D were evaluated in this prospective interventional before and after study (https://clinicaltrials.gov/ct2/show/NCT02833649). We evaluated refraction, uncorrected distance visual acuity (UCDVA), best corrected distance visual acuity (BCDVA), contrast sensitivity, aberrometry, defocus curve, subjective satisfaction, and operative and postoperative complications
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Results:
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At 4-year follow-up, 45% had 20/20 vision or better, and 100% had 20/40 or better uncorrected visual acuity (UCVA), if the best corrected visual acuity (BCVA) was 20/20 and patients were targeted for emmetropia; in addition, 82.5% of patients were within ±0.5 D and 97.05% were within ±1.0 D of the anticipated refraction. The mean change in BCVA extended between the 0.6 and 0.8 lines. At 4 years postoperatively, none of the eyes showed a decreased in UCVA, in contrast to 24 eyes in which UCVA was increased by?1 lines, with contrast sensitivity and improvement in total aberrations after TICL implantation. The cumulative 4-year corneal endothelial cell loss was ?5%. No patients reported dissatisfaction, and 100% of patients reported they would choose implantable collamer lens (ICL) implantation again. At 4 -years follow-up, the mean spherical and cylindrical manifest refractions were 0.44±0.18 D and -1.01 ± 0.44 D, respectively. At the end of follow-up, the vault was 658±54.33µm (range, 500-711) and the intraocular pressure (IOP) was 11.7±2.08 mmHg. Occurrences of glare and night-driving troubles diminished after TICL surgery and in the subsequent period.
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Conclusion:
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The results from this standardized clinical investigation support TICL implantation from clinical and optical viewpoints in patients with stable keratoconus.
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Attachment:
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