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Combination of Microstereolithography and Electrospinning to Produce Membranes Equipped with Niches for Corneal Regeneration

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Intrastomal corneal ring segments: reversibility of refractive effect.

P A Asbell¹, O O Uçakhan, R L Abbott

¹Department of Ophthalmology, Mount Sinai School of Medicine, New York, NY 10029-6574, USA. pasbell@mssm.edu

Journal of Refractive Surgery (Thorofare, N.J. : 1995)

|February 24, 2001

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Intrastromal corneal ring segments (ICRS) removal is safe and effective, with most eyes regaining their preoperative refractive state within three months. This study confirms the reversibility of ICRS refractive effects.

Area of Science:

Ophthalmology
Corneal Surgery
Refractive Surgery

Background:

Intrastromal corneal ring segments (ICRS) are used to correct refractive errors.
Understanding the reversibility of ICRS effects is crucial for patient management.

Purpose of the Study:

To evaluate the reversibility of refractive changes after intrastromal corneal ring segments (ICRS) removal.
To assess visual acuity and refractive stability post-ICRS explantation.

Main Methods:

Retrospective analysis of 34 eyes undergoing ICRS removal from FDA clinical trials.
Evaluation of visual acuity (BSCVA, UCVA), manifest refraction, and refractive stability pre- and post-removal.

Main Results:

ICRS removal was safe and uncomplicated in all cases.

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95% of eyes returned to within +/-1.00 D of their preoperative spherical equivalent refraction within 3 months.

90% of eyes regained preoperative uncorrected visual acuity within +/-2 lines post-removal.

Conclusions:

Intrastromal corneal ring segments (Intacs) can be safely and easily removed.
Corneal refractive status is largely reversible within 3 months of ICRS explantation.