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Three Different Protocols of Corneal Collagen Crosslinking in Keratoconus: Conventional, Accelerated and Iontophoresis
Published on: November 12, 2015
[Intrastromal corneal segments implantation in keratoconus]
Vestnik Oftalmologii
|February 2, 2013
Summary
Femtosecond laser and manual techniques for Keraring implantation showed similar visual outcomes in keratoconus patients. Femtosecond laser simplifies the surgical tunnel creation process for intrastromal corneal ring segments.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Biomedical Engineering
Background:
- Keratoconus is a progressive corneal ectasia leading to visual impairment.
- Intrastromal corneal ring segments (ICRS) are used to regularize the corneal shape.
- Surgical technique for tunnel creation can impact ICRS implantation outcomes.
Purpose of the Study:
- To compare the refractive and functional outcomes of Keraring implantation using femtosecond laser versus manual tunnel creation.
- To evaluate the technical advantages of femtosecond laser in creating intrastromal tunnels for ICRS.
Main Methods:
- Comparative analysis of 47 patients (47 eyes) with stage II-III keratoconus.
- Keraring implantation using femtosecond laser for tunnel creation.
- Keraring implantation using manual trephine for tunnel creation.
Main Results:
- No significant difference in refractive outcomes between femtosecond laser and manual techniques.
- No significant difference in functional outcomes between the two groups.
- Femtosecond laser offered technical simplification in creating intrastromal tunnels.
Conclusions:
- Both femtosecond laser and manual techniques are effective for Keraring implantation in keratoconus.
- Femtosecond laser provides a technical advantage by simplifying tunnel creation.
- Further research may explore long-term outcomes and cost-effectiveness.

