الفهرس 
Physiology of Aqueous HumourOnly 14 pages are availabe for public view
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Abstract
PURPOSE
THE AIM OF THIS STUDY WAS TO EVALUATE THE BIOMETRIC charACTERISTICS OF EGYPTIAN PATIENTS WITH HISTORY OF ACUTE ANGLE-CLOSURE CRISIS (AACC).
PATIENTS AND METHODS
THIS IS A RETROSPECTIVE CASE–CONTROL STUDY THAT INCLUDED 20 PATIENTS AGED 18 YEARS AND OLDER. THEY WERE DIVIDED INTO THREE GROUPS: group 1, WHICH INCLUDED 10 PATIENTS
WHO HAD HISTORY OF AACC IN ONE EYE; group 2, WHICH INCLUDED THE FELLOW EYES OF THE PATIENTS WITH AACC WHO SERVED AS CONTROL EYES; AND group 3, WHICH INCLUDED 10
NORMAL VOLUNTEERS PARTICIPATING WITH ONE EYE AS NORMAL CONTROLS. BIOMETRIC PARAMETERS OF THE EYES WERE ACQUIRED AND THE OCULAR CROWDING VALUE (OCV −DEFINED AS LENS THICKNESS+CENTRAL CORNEAL THICKNESS − ANTERIOR CHAMBER DEPTH/AXIAL LENGTH) WAS CALCULATED FOR EACH EYE. RECEIVER OPERATING charACTERISTIC CURVES WERE PLOTTED, AND BIOMETRIC VARIABLES WERE COMPARED TO COMPILE A RISK ASSESSMENT FOR AACC.
RESULTS
THERE WAS A STATISTICALLY SIGNIFICANT DIFFERENCE IN THE OCV BETWEEN THE DIFFERENT EYE GROUPS. THE OCV HAD A 90.0% SENSITIVITY AND 75.0% SPECIFICITY AT A CUTOFF VALUE ABOVE 0.1045. EYES WITH AACC HAD SIGNIFICANTLY THICKER LENS (P=0.008), SHALLOWER ANTERIOR CHAMBER DEPTH (P<0.001), AND SHORTER AXIAL LENGTH (P<0.001) THAN HEALTHY EYES.
CONCLUSION
THE OCV MIGHT BE A NONCONTACT SCREENING METHOD TO ASSESS THE RISK OF AACC IN ADULTS.