Anaesthetic plus dilating gel improves pupil dilation for cataract surgery

Area of Science:

• Ophthalmology
• Pharmacology

Background:

• Cataract surgery requires effective preoperative pupil dilation and corneal anesthesia.
• Traditional pharmacotherapy involves multiple eye drops administered at specific intervals.
• Evaluating novel formulations can improve patient preparation and surgical outcomes.

Purpose of the Study:

• To compare the efficacy of a combination anesthetic plus dilating gel (ADG) with traditional pharmacotherapy for achieving pupil dilation and corneal anesthesia prior to cataract surgery.

Main Methods:

• A prospective, noninferiority study involving 20 adult patients undergoing unilateral cataract surgery.
• One eye received the traditional regimen (diclofenac, gentamicin, cyclopentolate, phenylephrine, tropicamide, tetracaine), while the other received the ADG (tetracaine, povidone-iodine, phenylephrine, tropicamide, diclofenac, lidocaine).
• Pupil dilation and corneal anesthesia were measured at multiple time points before and after surgery.

Main Results:

• The ADG achieved significantly greater pupil dilation compared to the traditional regimen (p < 0.0001).
• No significant difference in corneal anesthesia was observed between the ADG and traditional methods (p = 0.77).
• Baseline measurements showed no significant differences in pupil dilation or corneal anesthesia.

Conclusions:

• The combination anesthetic plus dilating gel (ADG) is noninferior to the traditional pharmacologic regimen for preoperative cataract surgery preparation.
• ADG effectively achieves comparable corneal anesthesia and superior pupil dilation.
• This novel gel formulation presents a viable alternative for optimizing preoperative cataract patient management.