Corneal alkali wound healing in the monkey

Area of Science:

• Ophthalmology
• Regenerative Medicine
• Corneal Biology

Background:

• Corneal alkali wounds are severe injuries that can lead to vision loss.
• Understanding the healing process of all corneal layers is crucial for effective treatment.
• The role of the endothelium in corneal wound repair requires further investigation.

Purpose of the Study:

• To investigate the complete healing process of corneal alkali wounds in a primate model.
• To assess the morphometric and functional recovery of the corneal epithelium, stroma, and endothelium.
• To emphasize the contribution of endothelial healing to overall wound repair.

Main Methods:

• Induction of standardized alkali wounds using 1 N NaOH on the cornea of 30 Macaca fascicularis monkeys.
• Morphometric assessment of epithelial healing via photography.
• Micrographic analysis of endothelial healing.
• Quantitative microradiography for stromal healing evaluation over a 4-month period.

Main Results:

• Complete corneal transparency was regained within the 4-month observation period.
• Epithelial healing showed minimal complications after initial recovery.
• Stromal thickness and dry mass content normalized within one week.
• Endothelial resurfacing occurred within one week and remained stable thereafter.

Conclusions:

• Corneal alkali wounds demonstrate robust healing capabilities in Macaca fascicularis.
• The endothelium plays a significant role in the successful repair and maintenance of corneal integrity post-injury.
• This study highlights the regenerative potential of the cornea, particularly the endothelium, following severe alkali insult.