image 2 image 4
Skip Navigation Links
 Home 
 Congress Structure 
 Important Dates 
 Venue 
 Registration 
 Pre Registered 
 Abstracts 
 Scientific Program 
 Photo and Film Festival 
 Exhibition 
 Contact Us 
 Personal page 
       XXVIII Annual Congress of the Iranian Society of Ophthalmology        بـیــست و هشتمین کنــگــره سـالیـانه انـجـمـن چـشـم پـزشـکی ایـــران
مقاله Abstract


Title: A New Topography Triads for Diagnosis and Grading of Pellucid Marginal Degeneration
Author(s): Mohammad Reza Jafarinasab, MD; Mohammad Ali Javadi, MD; Sare Safi, PhD; Mohammad Hassan Babaei, MD
Presentation Type: Oral
Subject: Cornea and Anterior Segment
Others:
Presenting Author:
Name: Mohammad Reza Jafarinasab
Affiliation :(optional) Ophthalmic Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
E mail: dr_jafarinasab@yahoo.com
Phone: 22802430
Mobile: 09121021448
Purpose:

To introduce the new topographic criteria for diagnosing and grading the severity of pellucid marginal degeneration (PMD).

Methods:

In this case-control study, the topography patterns of patients who were referred to Cornea and refractive services of Labbafinejad Medical Center or a private clinic for refractive surgery or management of corneal diseases and were diagnosed as early, subclinical or clinical KCN or PMD were reviewed.

Results:

The topography patterns of 120 subjects were evaluated. The indices and pattern analysis showed that three fundamental parameters can be considered as diagnostic signs characterize all stages including early/subclinical PMD. These parameters included A) an inferior flattening area surrounded by steep areas, inferior to the horizontal axis (IFA), B) an apple shaped pattern, instead of the usual pear shaped pattern that is common in KCN. C) Superior flattest area (SFA), could be helpful for diagnosing of PMD. In addition, we noticed that measuring the extent of IFA could be helpful for staging the PMD. Against the rule astigmatism (flat meridians @45-135 degrees) can be considered as a characteristic for diagnosing the early stage of PMD. Based on these three parameters, 36 cases of PMD were correctly differentiated from KCN and normal corneal topography.

Conclusion:

Three main signs including inferior flattening, apple pattern and flattest area (quadrant superior) can be consider as the diagnostic signs characterize for PMD.

Attachment:





Skip Navigation Links
        صفحه اصلی
        ساختار کنگره
        تاریخ های مهم
        مکان برگزاری
        ثبت نام
        ثبت نام شدگان
        اطلاعات هتل - رزرو
        مقالات
        برنامه کنگره
        جشنواره فیلم و عکس
        نمایشگاه
        تماس با ما
        صفحه شخصی
        جستجوی سخنران
        آرشیو کنگره سالهای گذشته
        شب کنگره چشم پزشکی
 
ورود شرکت کنندگان
نام کاربری :
کلمه عبور :
  کلمه عبور خود را فراموش کرده ام.
Total Visits
Find us on Social Media
Congress Count Down
Today Label
Last Month Label
Total Visitors Label