J Korean Ophthalmol Soc.  2024 Jul;65(7):475-479. 10.3341/jkos.2024.65.7.475.

Correction of Internal Astigmatism Using Toric Scleral Contact Lens after Implantable Collamer Lens Surgery

• Yang SA
• Lee JE

• KMID: 2557626
• DOI: http://doi.org/10.3341/jkos.2024.65.7.475

Abstract

Purpose
We present a case of internal astigmatism correction using a toric scleral contact lens in a patient with high myopia after implantable collamer lens (ICL) surgery.
Case summary
A 45-year-old man presented with a significant decrease in visual acuity despite previous ICL surgery. Initial attempts to fit a corneal rigid gas permeable contact lens to the left eye were unsuccessful due to fitting challenges. Subsequently, the use of a spherical scleral contact lens effectively corrected corneal astigmatism but failed to address internal astigmatism, thereby limiting improvement in visual acuity. Postoperative corneal ectasia and ICL rotation were suspected to be the underlying causes of this astigmatism. The introduction of a front toric scleral lens resulted in a significant improvement in visual acuity and sustained comfort throughout the 3-month follow-up period.
Conclusions
The use of toric scleral lenses can significantly improve visual acuity and provide exceptional comfort in cases where corneal morphology and lens position change after ICL surgery. This modality presents a promising alternative for future consideration.

Keyword

Astigmatism, Contact lenses, Intraocular lenses