Accuracy of 3 imaging modalities for evaluation of the posterior lens capsule in traumatic cataract.
OBJECTIVE
To compare the accuracy of 3 imaging modalities for preoperative evaluation of the posterior lens capsule in traumatic cataract.


METHODS
Farabi Eye Hospital, Tehran, Iran.


METHODS
Case series.


METHODS
The study comprised eyes with traumatic cataract opaque enough to prevent visualization of the posterior lens capsule on slitlamp examination. To detect posterior lens capsule rupture before surgery, imaging was performed with 20 MHz echography (Eye Cubed), anterior segment optical coherence tomography (AS-OCT) (Visante model 1000), and Scheimpflug imaging (Pentacam). All patients subsequently had cataract extraction, and the intraoperative findings of the posterior lens capsule were compared with the preoperative findings of the imaging modalities.


RESULTS
The study enrolled 21 eyes of 21 patients (20 men, 1 woman) with a mean age of 31.5 years ± 1.45 (SD). The nature of trauma was blunt (5 eyes) or sharp (16 eyes). To detect posterior lens capsule rupture, the sensitivity and specificity were, respectively, 80% and 86% for 20 MHz echography, 71% and 77% for AS-OCT, and 62% and 57% for Scheimpflug imaging (95% confidence intervals: sensitivity, 30.00-90.32; specificity, 54.81-92.95). Insufficient resolution for posterior lens capsule evaluation occurred in 33.3% cases for AS-OCT and 57.1% cases for Scheimpflug imaging. The accuracy of 20 MHz echography, AS-OCT, and Scheimpflug imaging was 76.1%, 61.9%, and 42.9%, respectively.


CONCLUSIONS
In the evaluation of the posterior lens capsule in eyes with traumatic cataract, 20 MHz echography had higher accuracy than AS-OCT and Scheimpflug imaging.


BACKGROUND
No author has a financial or proprietary interest in any material or method mentioned.
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Ali
A
Tabatabaei
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran. Electronic address: drnhasanlou@gmail.com.
Narges
N
Hasanlou
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Ahmad
A
Kheirkhah
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Mohammadreza
M
Mansouri
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Houshang
H
Faghihi
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Hajar
H
Jafari
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Alireza
A
Arefzadeh
From Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Sciences, Tehran, Iran.
Sasan
S
Moghimi
D000293:Adolescent; D000328:Adult; D002386:Cataract / Q000175:diagnosis*; D002387:Cataract Extraction; D002648:Child; D003952:Diagnostic Imaging / Q000379:methods*; D015807:Eye Injuries, Penetrating / Q000175:diagnosis* / Q000601:surgery; D005260:Female; D006801:Humans; D019654:Lens Implantation, Intraocular; D008297:Male; D008875:Middle Aged; D010781:Photography; D057851:Posterior Capsular Rupture, Ocular / Q000175:diagnosis* / Q000601:surgery; D057852:Posterior Capsule of the Lens / Q000293:injuries* / Q000473:pathology; D015203:Reproducibility of Results; D041623:Tomography, Optical Coherence; D014463:Ultrasonography; D014949:Wounds, Nonpenetrating / Q000175:diagnosis* / Q000601:surgery; D055815:Young Adult