Cataract surgery in children using intracameral mydriatic

Area of Science:

• Ophthalmology
• Surgical Innovation
• Pediatric Medicine

Background:

• Pediatric cataract surgery requires effective pupil dilation for optimal visualization.
• Traditional methods often involve multiple topical agents or intraoperative adjustments.
• Ensuring adequate mydriasis is crucial for surgical success and patient outcomes.

Purpose of the Study:

• To evaluate the efficacy of a premixed intracameral anesthetic mydriatic combination in pediatric cataract surgery.
• To assess pupil dynamics following a single intracameral injection of phenylephrine, tropicamide, and lidocaine.
• To determine if this approach eliminates the need for supplementary mydriatic agents.

Main Methods:

• A prospective study involving consecutive children (≤12 years) undergoing cataract surgery.
• A single intracameral injection of phenylephrine (0.31%), tropicamide (0.02%), and lidocaine (1%) was administered at the start of surgery.
• Pupil sizes were measured at various intraoperative time points without topical or infusion mydriatics.

Main Results:

• Adequate mydriasis was achieved in 93.5% of patients (70/75) with a single injection.
• The mean pupillary diameter increased significantly from 1.8 mm to 6.1 mm.
• Minimal pupillary diameter variability (0.73 ± 1.3 mm) was observed, with only five eyes requiring repeat injection.

Conclusions:

• A fixed-dose premixed intracameral injection effectively achieves pupil dilation in pediatric cataract surgery.
• This method simplifies the surgical procedure by reducing the need for topical dilators and intraoperative interventions.
• The combination offers a safe and efficient alternative for managing mydriasis in young patients.