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Effect of Minimizing Light Exposure with Digital Visualization on Macular Function After Cataract Surgery in Patients
Otman Sandali1,2, Rachid Tahiri Joutei Hassani3, Isabelle Audo1
1Quinze-Vingts National Ophthalmology Hospital, 75012 Paris, France.
Journal of Clinical Medicine
|July 15, 2026
Summary
Reducing intraoperative light exposure during cataract surgery for AMD patients did not significantly improve the primary outcome of macular function. Exploratory findings suggest potential benefits for retinal function and macular thickness, warranting further investigation.
Area of Science:
- Ophthalmology
- Retinal Diseases
- Surgical Technology
Background:
- Cataract surgery in patients with Age-related Macular Degeneration (AMD) poses risks to macular function.
- Intraoperative light exposure is a potential contributing factor to postoperative visual impairment.
Purpose of the Study:
- To evaluate if reducing intraoperative light exposure preserves macular function post-cataract surgery in AMD patients.
- To compare the effects of standard versus digital visualization techniques on retinal function.
Main Methods:
- Prospective randomized study involving 42 eyes of 42 AMD patients.
- Primary outcome: change in photopic electroretinogram (ERG) b-wave amplitude at 1 hour post-surgery.
- Secondary outcomes: ERG implicit time, multifocal ERG, visual acuity, and macular thickness.
Main Results:
- Digital visualization significantly reduced intraoperative light exposure compared to standard methods (3938 vs 47,142 lux).
- No significant difference in the primary outcome (photopic b-wave amplitude) between groups at 1 hour post-surgery.
- Exploratory analysis indicated potential benefits in ERG implicit time and reduced macular thickening in the digital visualization group at 1 month.
Conclusions:
- Digital visualization effectively lowers intraoperative light exposure in cataract surgery for AMD patients.
- The primary endpoint of macular function preservation was not significantly different between groups.
- Further research is needed to confirm the exploratory findings on retinal function and macular thickness.
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