image 2 image 4
Skip Navigation Links
 Home 
 Congress Structure 
 Important Dates 
 Venue 
 Pre Registered 
 Hotel Info 
 Abstracts 
 Scientific Program 
 Social Program 
 Exhibition 
 Contact Us 
 Archive 
       XXIII Annual Congress of the Iranian Society of Ophthalmology        بـیــست و سومین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران
مقاله Abstract


Title: Outcome of Complete Intrastromal Ring Implantation in Corneal Disorders: Pellucid Marginal Degeneration, Post-LASIK Ectasia, and Post-PKP Astigmatism
Author(s): Mahmoud Jabbarvand, Hesam Hashemian, Ahmad Salamat Rad, Fatemeh Bazvand, Mehdi Khodaparast
Presentation Type: Oral
Subject: Cornea and Anterior Segment
Others:
Presenting Author:
Name: Hesam Hashemian
Affiliation :(optional) Ophthalmology research center, Farabi Eye Hospital, Tehran university of medical sciences
E mail: shhlucky@yahoo.com
Phone:
Mobile: 09126805097
Purpose:

To assess effect of complete intrastromal corneal ring implantations in patients with post LASIK ectasia, pellucid marginal degeneration (PMD), and post penetrating keratoplasty (PK) astigmatism.

Methods:

Complete intrastromal corneal ring implantation was performed on 17 eyes of 16 patients (5 post LASIK ectasia, 7 pellucid marginal degeneration and 5 post PK astigmatism) using femtosecond laser. Uncorrected and corrected distance visual acuity (UDVA, CDVA), refraction, keratometry, central corneal thickness (CCT), corneal biomechanical profile, and corneal aberrometry were evaluated preoperatively, and 1month, 3month, 6 month, and one year after surgery.

Results:

Both UDVA and CDVA improved significantly 12 months after operation in all three groups. Spherical and cylindrical refraction reduced in all three groups; although the reduction was not significant in post-LASIK group. Mean keratometry reduced significantly and CCT increased (nonsignificantly except for PMD group) in all study groups. Corneal biomechanical profile did not change significantly in any group. Spherical aberration increased significantly in all three groups. Higher order aberrations, coma, and trefoil experienced no significant changes except in PK group; where all of these three aberrations reduced significantly.

Conclusion:

Complete intrastromal corneal ring can be considered as a safe and effective alternative treatment in corneal ectatic disorders and post-PK astigmatism.

Attachment:





Skip Navigation Links
        صفحه اصلی
        ساختار کنگره
        تاریخ های مهم
        مکان برگزاری
        ثبت نام شدگان
        اطلاعات هتل - رزرو
        ارسال مقالات
        برنامه کنگره
        برنامه های جانبی
        نمایشگاه
        تماس با ما
        آرشیو کنگره سالهای گذشته
        جستجوی سخنران
 
Last News

  - بـیــست و سومین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران