This prospective multicenter observational study aims to evaluate long-term visual and ocular biometric outcomes in pediatric patients aged 0-16 years who were diagnosed with traumatic cataract and underwent cataract extraction surgery. Medical records of eligible patients with at least 5 to 10 years of postoperative follow-up will be reviewed. Key outcome measures include best-corrected visual acuity (BCVA), axial length, corneal astigmatism, intraocular pressure (IOP), binocular function (fusion and stereopsis), intraocular lens (IOL) position, and postoperative complications. The study seeks to provide insight into long-term visual rehabilitation and prognostic indicators following pediatric traumatic cataract surgery.
Study Type
OBSERVATIONAL
Enrollment
600
Eye and ENT hospital of Fudan University
Shanghai, Shanghai Municipality, China
Visual Acuity
UDVA \& BCVA will be assessed using age-appropriate optotypes (e.g., Lea symbols, Snellen chart, or ETDRS chart) and recorded in logMAR units.
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Axial Length Development
Axial Length(mm) measured by IOLMaster700
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Corneal Astigmatism
Measured by Pentacam
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Corneal Astigmatism
Measured by IOLMaster700
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Binocular Function
Binocular fusion and stereopsis will be assessed using standard clinical tools such as Worth 4-dot test and Randot stereoacuity test.
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Intraocular Pressure (IOP)
IOP(mmHg) will be monitored using non-contact or Goldmann applanation tonometry to detect postoperative ocular hypertension or glaucoma.
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Postoperative Complications
Incidence of complications such as secondary glaucoma, visual axis opacification, retinal detachment, or IOL decentration will be recorded.
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Intraocular Lens (IOL) Position
IOL centration and tilt will be evaluated by slit-lamp exam or anterior segment OCT.
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Anterior Chamber Depth (ACD)
Anterior chamber depth (ACD) will be measured using optical biometry and recorded in millimeters (mm) as the distance from the corneal endothelium to the anterior lens surface.
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Lens Thickness (LT)
Lens thickness (LT) will be measured using optical biometry and recorded in millimeters (mm).
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
White-to-White Corneal Diameter (WTW)
WTW corneal diameter will be measured using optical biometry and recorded in millimeters (mm).
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
Keratometry
Keratometric values will be measured using optical biometry and recorded in diopters (D).
Time frame: From surgery up to 10 years postoperatively, depending on available follow-up duration
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