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مقاله Abstract


Title: Comparative analysis of the visual performance after implantation of the toric implantable collamer lens in stable keratoconus: a six -year follow-up after sequential procedure (CXL+TICL implantation
Author(s): Farideh Doroodgar, Azad Sanginabadi, Alireza Baradaran-Rafii, Mohammad Ghoreishi, Feazollah Niazi, Sana Niazi, Cyrus Alinia, Eznollah Azargashb
Presentation Type: Poster
Subject: Cornea & lens
Others:
Presenting Author:
Name: Farideh Doroodgar
Affiliation :(optional) Negah eye hospital
E mail: farinaz_144@yahoo.com
Phone: 09125259912
Mobile: 09125259912
Purpose:

To report on 5-year postoperative visual performance with the toric implantable collamer lens (TICL) for stable keratoconus after sequential procedure (corneal collagen crosslinking plus TICL implantation)

Methods:

Forty eyes of 24 patients with stable keratoconus with myopia between 0.00 and −18.00 dioptres (D) and astigmatism between 1.25 and 8.00 D were evaluated in this prospective interventional study (https://clinicaltrials.gov/ct2/show/NCT02833649). We evaluated refraction, visual outcomes, astigmatic changes analysed by Alpins vector, contrast sensitivity, aberrometry, modulation transfer functions (MTFs), defocus curve, and operative and postoperative complications

Results:

At 5-year follow-up, 45% had 20/20 vision or better and 100% had 20/40 or better uncorrected visual acuity (UCVA). Vector analysis of refractive astigmatism shows that the surgically induced astigmatism (SIA) (3.20±1.46 D) was not significantly different from the target induced astigmatism (TIA) (3.14±1.42 D) (p=0.620). At five years postoperatively, none of the eyes showed a decrease in UCVA, in contrast to 24 eyes in which UCVA was increased by ?1 lines, with contrast sensitivity and improvement in total aberrations and MTF value at 5 per degree (*p=0.004) after TICL implantation. The cumulative 4-year corneal endothelial cell loss was ?5%. No patients reported dissatisfaction. At the end of follow-up, the vault was 658±54.33m (range, 500–711) and the intraocular pressure was 11.7±2.08 mm Hg. Occurrences of glare and night-driving troubles diminished after TICL surgery

Conclusion:

The results from this standardised clinical investigation support TICL implantation from clinical and optical viewpoints in patients with stable keratoconus.ClinicalTrials.gov Identifier: NCT02833649

Attachment: 27Poster- Comparative analysis of the visual.pdf





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