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Epikeratophakia surgery improved vision in children after cataract removal. Refinements in surgical techniques significantly reduced graft failure rates, leading to better visual outcomes.
Area of Science:
- Ophthalmology
- Pediatric Surgery
Background:
- Congenital and traumatic cataracts in children lead to aphakia, necessitating vision correction.
- Traditional methods for correcting aphakia in children can be challenging, particularly regarding long-term visual outcomes and adherence to therapy.
Purpose of the Study:
- To evaluate the efficacy and outcomes of epikeratophakia for correcting aphakia in pediatric patients following cataract extraction.
- To assess the impact of surgical technique improvements on graft survival and visual acuity.
Main Methods:
- Epikeratophakia was performed on 61 children to correct aphakia post-cataract removal.
- Follow-up data for 51 patients (54 grafts) exceeding 6 months were analyzed.
- Surgical and tissue handling techniques were refined during the study period.
Main Results:
- Graft failure rates decreased from 30% in the initial 27 grafts to 7% in the subsequent 27 grafts.
- Corneal refractive power increased significantly, with overrefraction improving from +0.45 D to -0.00 D in later patients.
- Satisfactory visual acuity was achieved, especially in patients with traumatic cataracts; younger age correlated with better outcomes in congenital cases.
Conclusions:
- Epikeratophakia is an effective method for correcting aphakia in children, with improved surgical techniques enhancing success rates.
- The procedure facilitates necessary occlusion therapy, crucial for visual development after cataract surgery.
- Positive visual outcomes were observed even in older children, suggesting a broader therapeutic window.
Abstract:
Epikeratophakia was performed in 61 children for the correction of aphakia after the removal of unilateral congenital or traumatic cataracts; 51 patients (54 grafts) have more than 6 months follow-up. In the first 27 grafts, 8 (30%) failed, but in the last 27 grafts, only 2 (7%) failed, largely due to improved surgical and tissue handling techniques. The average increase in corneal refractive power for the early patients was 12.68 +/- 4.63 D with an average overrefraction of +0.45 +/- 5.60 D. The last half of the patients showed an average increase of 14.83 +/- 4.83 D, with an average overrefraction of -0.00 +/- 5.20 D. Visual acuity results in patients with traumatic cataracts have been the most satisfactory, with the majority of patients obtaining useful vision. It also appears that in patients with congenital cataracts, the younger the patient at the time of surgery, the greater the chance for a good visual result. Some improvement in vision has been seen in all of the children with successful grafts, even those beyond the age when amblyopia therapy would be considered to have some potential for therapeutic effect. By attaching the correction permanently on the eye, epikeratophakia facilitates the vigorous occlusion therapy required after cataract extraction in these children.