Trypan blue capsule staining to visualize the capsulorhexis in cataract surgery

Area of Science:

• Ophthalmology
• Surgical Techniques
• Medical Devices

Background:

• Performing capsulorhexis during phacoemulsification can be challenging without a red fundus reflex.
• Mature cataracts often obscure the red reflex, complicating anterior capsule visualization.

Purpose of the Study:

• To evaluate the safety and efficacy of trypan blue staining for anterior capsule visualization during capsulorhexis.
• To assess the utility of trypan blue in facilitating capsulorhexis in eyes with absent red fundus reflex.

Main Methods:

• A prospective study involving 30 patients with mature cataracts.
• 0.1 mL of 0.1% trypan blue was used to stain the anterior capsule prior to capsulorhexis.
• Phacoemulsification was performed, and the capsulorhexis was visualized.
• Patient outcomes and adverse reactions were monitored for up to 12 months post-surgery.

Main Results:

• Trypan blue staining successfully enabled visualization of the capsulorhexis in all patients.
• No adverse reactions were observed in any patient up to 12 months post-surgery.
• The technique facilitated the performance of capsulorhexis in the absence of a red fundus reflex.

Conclusions:

• Trypan blue staining of the anterior capsule is a safe and effective method to aid capsulorhexis.
• This technique is particularly beneficial in cases of mature cataracts with absent red fundus reflex.
• Anterior capsule staining with trypan blue improves surgical outcomes in complex cataract surgeries.