Seyed Ali Tabatabaei1, Mohammad Soleimani2, Hamed Etesali1, Morteza Naderan1. 1. Ocular Trauma and Emergency Department, Farabi eye hospital, Tehran university of Medical Sciences, Tehran, Iran. 2. Ocular Trauma and Emergency Department, Farabi eye hospital, Tehran university of Medical Sciences, Tehran, Iran. Electronic address: Soleimani_md@yahoo.con.
Abstract
PURPOSE: To assess the efficacy of swept source optical coherence tomography (SS-OCT) and ultrasound biomicroscopy (UBM) in detecting posterior capsule (PC) defect in patients with traumatic cataract. DESIGN: Observational case-series METHODS: Sixty-seven eyes from 67 patients, without age limitation and with traumatic cataract severe enough to prevent slit lamp evaluation of the PC, included in a simple sequence without randomization. Patients underwent both 50 MHz UBM and SS-OCT evaluation of the PC by different operators. Then, cataract surgery was performed using a single technique. RESULTS: Sixty-seven eyes from 67 patients including 60 men and 7 women were studied. The mean age was 34±14 years and the mean LogMAR of visual acuity was 1.89±0.71. The calculated sensitivity, specificity, and accuracy values for SS-OCT were 96.8% (95% CI: 83.81-99.43), 66.7% (95% CI: 48.78-80.77), and 82% (95% CI: 70.53-89.62) respectively. For UBM, sensitivity, specificity, and accuracy values were 82.6% (95% CI: 62.86-93.02), 57.9% (95% CI: 36.28-76.86), and 71.4% (95% CI: 56.43-82.83), respectively. Positive predictive and negative predictive values for SS-OCT were 75% (95% CI: 59.81-85.81) and 95.2% (95% CI: 77.33-99.15) and for UBM were 70.4% (95% CI: 51.52-84.15) and 73.3% (95% CI: 48.05-89.1), respectively. CONCLUSION: Although both imaging techniques are effective, SS-OCT appears to be at least comparable, or superior in special circumstances, to UBM in detecting preoperative posttraumatic PC rupture. We recommend preoperative assessment of all traumatic cataracts with SS-OCT as a part of surgical planning.
PURPOSE: To assess the efficacy of swept source optical coherence tomography (SS-OCT) and ultrasound biomicroscopy (UBM) in detecting posterior capsule (PC) defect in patients with traumatic cataract. DESIGN: Observational case-series METHODS: Sixty-seven eyes from 67 patients, without age limitation and with traumatic cataract severe enough to prevent slit lamp evaluation of the PC, included in a simple sequence without randomization. Patients underwent both 50 MHz UBM and SS-OCT evaluation of the PC by different operators. Then, cataract surgery was performed using a single technique. RESULTS: Sixty-seven eyes from 67 patients including 60 men and 7 women were studied. The mean age was 34±14 years and the mean LogMAR of visual acuity was 1.89±0.71. The calculated sensitivity, specificity, and accuracy values for SS-OCT were 96.8% (95% CI: 83.81-99.43), 66.7% (95% CI: 48.78-80.77), and 82% (95% CI: 70.53-89.62) respectively. For UBM, sensitivity, specificity, and accuracy values were 82.6% (95% CI: 62.86-93.02), 57.9% (95% CI: 36.28-76.86), and 71.4% (95% CI: 56.43-82.83), respectively. Positive predictive and negative predictive values for SS-OCT were 75% (95% CI: 59.81-85.81) and 95.2% (95% CI: 77.33-99.15) and for UBM were 70.4% (95% CI: 51.52-84.15) and 73.3% (95% CI: 48.05-89.1), respectively. CONCLUSION: Although both imaging techniques are effective, SS-OCT appears to be at least comparable, or superior in special circumstances, to UBM in detecting preoperative posttraumatic PC rupture. We recommend preoperative assessment of all traumatic cataracts with SS-OCT as a part of surgical planning.