[1]Department of Otolaryngology;
Jordan University of Scienceand Technology;
P O Box 3030;
Irbid 22110;
Jordan;
[1]Department of Otolaryngology;
Jordan University of Scienceand Technology;
P O Box 3030;
Irbid 22110;
Jordan;
[2]Department of Otolaryngology;
Yarmouk University;
P O Box566;
Irbid 21163;
Jordan;
[3]Department of Ophthalmology;
Mutah University;
A1-Karak61710;
Jordan;
[4]Department of Ophthalmology;
Jordan University of Scienceand Technology;
P O Box 3030;
Irbid 22110;
Jordan;