Myopic hydrogel keratophakia: preliminary report

Area of Science:

• Ophthalmology
• Biomaterials Science
• Surgical Innovation

Background:

• Current corneal refractive surgeries often require donor tissue and complex equipment.
• Myopic hydrogel keratophakia presents an alternative with potential advantages.
• The theoretical benefits include limitless supply and adjustable/reversible outcomes.

Purpose of the Study:

• To evaluate the preliminary safety and efficacy of myopic hydrogel keratophakia.
• To assess the refractive outcomes of hydrogel lens implantation in nonhuman primate corneas.

Main Methods:

• Myopic hydrogel implants with powers ranging from -5 to -20 diopters were surgically placed in nonhuman primate corneas.
• Corneascopic analysis was performed to evaluate corneal flattening and refractive correction.
• Complications were documented and analyzed.

Main Results:

• Significant corneal flattening was observed in all implanted corneas.
• Approximately 70% of the intended refractive correction was achieved.
• Infrequent operative complications were noted, primarily related to wound dehiscence.

Conclusions:

• Myopic hydrogel keratophakia demonstrates considerable clinical potential as a refractive surgery technique.
• Further experimental investigation is necessary to establish its long-term safety and efficacy.
• This technique avoids donor tissue and complex lathing, offering a potentially scalable solution.