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Pseudophakic corneal edema: A review of mechanisms and treatments
Raja Narayanan1, Ronald N Gaster, M Cristina Kenney
1LV Prasad Eye Institute, Banjara Hills, Hyderabad, India.
Purpose:
To review the pathological mechanisms and treatments for pseudophakic corneal edema (PCE), one of the most common indications for penetrating keratoplasty.
Methods:
The literature was examined for the molecular biology associated with PCE and for the surgical and medical treatments for this disorder.
Results:
The incidence of PCE has recently been decreasing because of improved surgical instrumentation, including improvements in intraocular lens designs that cause less trauma to the corneal endothelium. Extracellular matrix and growth factor abnormalities occur in PCE corneas and recently, the role of aquaporins, which are involved in the regulation of fluid movement across cells, has been investigated.
Conclusions:
Although newer treatment options have been suggested, penetrating keratoplasty still remains the most definitive treatment and has the highest success rate.
Insights
Pseudophakic corneal edema (PCE) is a common complication. While treatments are improving, penetrating keratoplasty remains the most effective solution for this condition.
Area of Science:
- Ophthalmology
- Corneal Science
- Pathology
Background:
- Pseudophakic corneal edema (PCE) is a significant complication following intraocular lens implantation.
- It is a leading indication for penetrating keratoplasty, a corneal transplant procedure.
Purpose of the Study:
- To review the pathological mechanisms underlying PCE.
- To examine current and potential treatments for pseudophakic corneal edema.
Main Methods:
- Literature review focusing on molecular biology of PCE.
- Analysis of surgical and medical treatment strategies for PCE.
Main Results:
- Decreasing incidence of PCE due to improved surgical techniques and intraocular lens designs.
- Abnormalities in extracellular matrix and growth factors are implicated in PCE.
- The role of aquaporins in fluid regulation in PCE corneas is under investigation.
Conclusions:
- While novel treatments are emerging, penetrating keratoplasty remains the gold standard for treating PCE.
- Penetrating keratoplasty offers the highest success rate for managing pseudophakic corneal edema.
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