|
مقاله
|
Abstract
|
|
|
|
Title:
|
the corneal biomechanical properties using the Corvis ST in healthy eyes who candidate for keratorefractive surgery
|
|
Author(s):
|
Ramin Salouti MD Mohammad H Nowroozzadeh MD, Mansoureh Bageri MD, MD, R Mohammad Zamani MD Maryam Ghoreyshi MD, Ali Reza Hafrkonandeh
|
|
Presentation Type:
|
Poster
|
|
Subject:
|
Cornea and Anterior Segment
|
|
Others:
|
|
|
Presenting Author:
|
|
|
Name:
|
Ramin Salouti
|
|
Affiliation :(optional)
|
Salouti Eye Clinic, Research center, Shiraz, Iran.
|
|
E mail:
|
saloutir@hotmail.com
|
|
Phone:
|
6278853
|
|
Mobile:
|
09171117976
|
|
|
|
|
Purpose:
|
To evaluate the corneal biomechanical properties by the Corvis ST in healthy eyes who Candidate for keratorefractive surgery
|
|
Methods:
|
In this prospective case series, intraocular pressure, central corneal thickness, and biomechanical properties of 652 keratorefractive surgery candidates were evaluated
|
|
Results:
|
Mean intraocular pressure was 16.8±2.9 mmHg. The means (95% range) of corneal biomechanical factors were as follows: T1: 7.36 (6.60 to 8.12) ms, L1: 1.82 (1.37 to 2.23) mm, V1: 0.11 (0.04 to 0.20) m/s, T2: 20.13 (19.19 to 21.07) ms, L2: 1.34 (0.26 to 2.42) mm, V2: -0.67 (-1.00 to -0.34) m/s, T: 16.84 (15.59 to 18.09) ms, DA: 1.05 (0.85 to 1.25) mm, PD: 4.60 (2.62 to 6.58) mm, R: 7.35 (4.63 to 10.07) mm. Regression analysis demonstrated association between all Corvis parameters and intraocular pressure (p<0.001), and showed significant association between intraocular pressure and time to reach first and second applanation (T1, T2), time, distance between bending points of the cornea, and concave radius of curvature (T, PD, R) at the point of highest concavity (P<0.001).
|
|
Conclusion:
|
Reporting the normal range of corneal biomechanical factors in refractive surgery candidates of selected ethnic groups helps in determining abnormal cases
|
|
Attachment:
|
|
|