Role of ultrasound biomicroscopy in planning paediatric cataract surgery

Session Details

Session Title: Paediatric Cataract Surgery

Session Date/Time: Sunday 15/09/2019 | 16:30-18:00

Paper Time: 16:30

Venue: Free Paper Forum: Podium 2

First Author: : C.Dhull INDIA

Co Author(s): :    S. Khokhar   Y. Gupta   K. Tiwari                       

Abstract Details

Purpose:

To study the role of Ultrasound bio microscopy (UBM) in planning of pediatric cataract surgery.

Setting:

Dr Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi

Methods:

A prospective, cross sectional and non-randomized study was conducted between Jan 2016 to Jan 2019, including 250 consecutive eyes of 180 pediatric patients, aged 0 to 10 years, with unilateral or bilateral congenital or developmental cataract. Preoperatively examination under general anesthesia was performed for lens morphology, detailed anterior segment and posterior segment examination and ocular biometry. Ultrasound biomicroscopy(UBM) was performed using 35 MHz probe to see: lens morphology and anterior segment biometry including white to white(WTW), sulcus-to-sulcus(STS) and bag diameters(BD). STS and BD were used as guide for planning IOL in the bag/ sulcus.

Results:

Mean age of subjects was 3.19±4.1 years. Of 250 eyes examined, cataract morphology using UBM was zonular cataract in 43.6%, total cataract in 28%, posterior subcapsular cataract in 11.2%, membranous cataract in 12%, anterior capsular plaque in 1.6%, posterior capsular plaque in 1.2%, posterior capsular defect (PCD) in 0.8% and associated with persistent fetal vasculature 1.6%. Mean WTW, STS and BD were 10.69±1.29, 10.19±1.15 and 8.17±1.71, respectively. There was significant correlation of WTW with STS (p=0.03) but not with BD (p=0.14). There was no correlation of STS and BD with age, axial length and keratometry.

Conclusions:

UBM is a useful tool for diagnosis of unique morphology of pediatric cataract. Size of capsular bag is not directly related to age or WTW of the patient. Bag diameter is a new independent parameter, which may be useful in planning of in the bag IOL implantation in pediatric cataract.

Financial Disclosure:

None