Posters

Visual and refractive outcomes and tomographic changes of one segment femtolaser-assisted intrastromal corneal ring implantation based on severity of keratoconus

Poster Details

First Author: S.Hashemian IRAN

Co Author(s):                        

Abstract Details

Purpose:

To assess the visual and refractive outcomes and tomographic changes after femtosecond laser-assisted implantation of a single-segment intrastromal corneal ring (ICRS; Intacs® SK) in a different stage of Keratoconus.

Setting:

Setting: Eye research center, Rassoul Akram Hospital, Iran University of Medical Sciences and Iranian Eye Clinic, Tehran, IRAN.

Methods:

In this retrospective interventional case series,160 eyes of 125 patients were evaluated. one segment Intacs SK ICRS was inserted using a femtosecond laser into eyes with stage I–IV Keratoconus. Visual and refractive outcomes and corneal tomography changes were analyzed 1 week, 2 and 6 months postoperatively.

Results:

Six months postoperatively, the spherical equivalent, mean sphere and mean cylinder was decreased by 1.03, 0.24, and 1.57 diopters (D), respectively. The mean preoperative UDVA and CDVA increased from 0.78 ± 0.20 to 0.39 ± 0.21 and from 0.45 ± 0.18 to 0.18 ± 0.14 LogMAR (P= 0.001), respectively. Steep and Flat Keratometry, Mean K and anterior and posterior best feet sphere decreased significantly (P = 0.001). 94.0% gained one or more lines of CDVA. Mean anterior chamber depth decreased from 3.21 to 3.12 mm (P = 0.001), and mean irregularity in the 3‐mm zone decreased significantly (P = 0.000).

Conclusions:

Implantation of one segment Intacs SK is safe and effective to treat Keratoconus, especially in stage I-II, leading to significant improvement in UDVA, CDVA, and refractive error.

Financial Disclosure:

None