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Epikeratophakia for keratoconus. The nationwide study.
Archives of Ophthalmology (Chicago, Ill. : 1960)
|September 1, 1986
Summary
Epikeratophakia surgery significantly improved uncorrected vision in keratoconus patients, with most achieving 20/40 or better vision post-procedure. This refractive surgery offers a safer, reversible alternative to traditional corneal transplants.
Area of Science:
- Ophthalmology
- Corneal Surgery
- Refractive Surgery
Background:
- Keratoconus is a progressive thinning of the cornea, leading to irregular astigmatism and vision loss.
- Traditional penetrating keratoplasty carries risks including rejection and vision-threatening complications.
- Epikeratophakia offers a potential alternative for keratoconus treatment.
Purpose of the Study:
- To report the initial outcomes of epikeratophakia for keratoconus treatment.
- To evaluate visual acuity, refractive changes, and safety of the procedure.
Main Methods:
- A nationwide study involving 69 surgeons and 177 eyes treated with epikeratophakia for keratoconus.
- Analysis of 82 cases with at least 30 days of follow-up post-suture removal.
- Assessment of uncorrected visual acuity, best-corrected visual acuity, keratometry, and intraocular pressure.
Main Results:
- Uncorrected visual acuity improved in all but two patients.
- 78% of patients achieved postoperative visual acuity of 20/40 or better.
- Mean keratometric flattening was 9.36 diopters, with a mean myopic correction of 5.26 D.
- No significant changes in intraocular pressure or endothelial cell counts were observed.
Conclusions:
- Epikeratophakia demonstrates significant visual acuity improvement and refractive correction for keratoconus.
- The procedure appears safe, with advantages over penetrating keratoplasty including reversibility and reduced risk of rejection.
- Further investigation into long-term outcomes is warranted.