Session Title: Cataract I
Session Date/Time: Friday 15/02/2013 | 10:30-12:30
Paper Time: 11:52
Venue: Hall 2
First Author: : C.Kakoulidis SLOVAKIA
Co Author(s): : P. Papadopoulos M. Cernak A. Cernak
Purpose:
To evaluate the accuracy and efficacy of two different hand-held devices in marking the axis of astigmatism before cataract surgery
Setting:
1-Ophthalmology Clinic, Slovak Medical University in Bratislava, Slovakia 2-Ophthalmology Department, Metropolitan Hospital. Athens, Hellas
Methods:
The horizontal axis was marked in 28 eyes (14 left and 14 right), using one of the two hand-held devices: A) Electronic Toric One Step Marker, AE 2929,Asico, held frontally and B) Pre-op Toric Axis Marker, AE-2792, Asico, held temporally. Device A has five leds indicating the horizontal plane and device B has bubble level. The eyes were photographed at the slit lamp with a very narrow horizontal slit, used as the reference axis. The difference from the reference axis was calculated from the enlarged photographs.
Results:
The electronic toric marker (A group) had a difference of 1.3o (STD:1.3o) from the reference axis. Eyes marked with Pre-op Toric Axis Marker (B Group) had a difference of 4.1o (STD:1.6 o). (p<0.001). No statistically significant difference was found in group A between marking of right and left eye (P>0.2). In group B, the marks of the right eyes had a positive angle (>0, CCW turn) of deviation, in contrast to the left eyes, that had a negative angle of deviation (<0, CW turn),(p>0.001).
Conclusions:
Both devices could mark the axis within 5o of intended. Astigmatism axis marking was more precise with the Electronic One Step Marker. The temporally held Pre-op Toric Axis Marker showed significant difference in marking, between the right and left eye.
Financial Disclosure:
None
