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Corneal densitometry: an innovative method to quantitatively evaluate corneal changes after phacovitrectomy.

Xin Liu^1,2, Yuting Shao¹, Hui Lin¹

¹Department of Ophthalmology, Tongji Hospital, School of Medicine, Tongji University, No. 389, Xincun Road, Putuo District, Shanghai, 200000, China.

BMC Ophthalmology

|March 6, 2023

Summary

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This summary is machine-generated.

Corneal densitometry (CD) changes after phacovitrectomy correlate with corneal thickness and endothelial cell health. CD can serve as a noninvasive tool to monitor corneal recovery and detect subtle edema.

Area of Science:

Ophthalmology
Corneal Science
Surgical Outcomes

Background:

Phacovitrectomy is a surgical procedure combining cataract removal and vitreous surgery.
Understanding corneal changes post-phacovitrectomy is crucial for patient recovery and visual outcomes.
Corneal densitometry (CD) offers a potential method to assess corneal health noninvasively.

Purpose of the Study:

To quantitatively assess corneal changes following phacovitrectomy.
To investigate the correlation between corneal densitometry (CD) and corneal endothelial parameters.
To evaluate CD as a tool for monitoring corneal health and recovery post-surgery.

Main Methods:

A cohort of 38 eyes with idiopathic full-thickness macular holes (iFTMHs) and cataracts underwent phacovitrectomy.

Keywords:

Coefficient of variation Corneal densitometry Endothelial cell density Hexagonality Phacovitrectomy

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Corneal densitometry (CD), central corneal thickness (CCT), and endothelial cell parameters (ECD, CV, HEX) were measured preoperatively and at multiple time points postoperatively (Day 1, Day 7, Month 1, Month 3).

Measurements were performed using Pentacam for CD and CCT, and specular microscopy for endothelial cells.

Main Results:

Significant decreases in endothelial cell density (ECD) and hexagonality (HEX) were observed post-surgery.
Corneal thickness (CCT) temporarily increased, while corneal densitometry (CD) initially rose and then gradually decreased.
Correlations were found between CD, CCT, ECD, and HEX, with CD reflecting changes in different corneal layers over time.

Conclusions:

Corneal densitometry (CD) is significantly correlated with central corneal thickness (CCT) and endothelial cell parameters (ECD, HEX).
CD serves as an objective, rapid, and noninvasive indicator of corneal health, including undetectable edema.
CD can effectively monitor the corneal repair process after phacovitrectomy.