Color-Contrast Adjustment With a 3D Head-Up System to Aid Capsulorhexis After ICG Staining: Single-Patient Case...

Area of Science:

• Ophthalmology
• Surgical Technology
• Medical Imaging

Background:

• Cataract surgery requires precise visualization of the anterior capsule for continuous curvilinear capsulorhexis (CCC).
• Advanced nuclear cataracts present challenges due to poor visibility and red reflex.
• Indocyanine green (ICG) staining aids visualization but requires careful management.

Purpose of the Study:

• To report a single case of safely completing continuous curvilinear capsulorhexis (CCC) using NGENUITY in 3D head-up surgery (HUS).
• To evaluate the utility of NGENUITY's color contrast adjustment for enhancing anterior capsule visibility during CCC in advanced cataracts.

Main Methods:

• A single case of extracapsular cataract extraction was performed in 3D HUS using NGENUITY.
• The anterior capsule was stained with 0.5% indocyanine green (ICG).
• NGENUITY's color contrast adjustment (red enhancement on monochrome filter) was used to improve CCC margin visibility.

Main Results:

• Continuous curvilinear capsulorhexis (CCC) was completed smoothly and safely.
• NGENUITY's color contrast adjustment significantly enhanced the visibility of the ICG-stained anterior capsulotomy margin.
• Intraocular lens fixation and position were stable one month post-surgery.

Conclusions:

• Color channel adjustment in a 3D head-up system can improve CCC margin visibility after ICG staining in advanced nuclear cataracts.
• This technique may be particularly beneficial in cases with a poor red reflex.
• Further prospective studies are needed to objectively evaluate contrast enhancement efficacy.