Long-term results of conductive keratoplasty for low to moderate hyperopia

Abstract

Results show that CK for low to moderate hyperopia is a safe, effective, predictable, and stable procedure.

Cornea-Based Techniques and Technology for Surgical Correction of Presbyopia

“…Contrast sensitivity is also spared with CK. Because the treatment zones are at the periphery of the cornea, postoperative contrast sensitivity measurements remain within normal limits [24][25][26].…”

Two-year follow-up of conductive keratoplasty for the treatment of hyperopic astigmatism

“…Conductive keratoplasty (CK), a less-invasive procedure for the treatment of hyperopia and astigmatism, [19][20][21][22][23][24][25][26] does not involve flap creation and therefore flap-related complications, is nonlaser, produces a larger functional optical zone than LASIK, 24 significantly improves near vision, 25 and operates outside the central clear zone of the cornea.…”

“…1-11 However, many patients are not good candidates for a hyperopic laser procedure and might opt for a thermokeratoplasty treatment. [16][17][18][19][20][21][22][23][24][25][26][27][28] The considerations are either anatomical, such as small corneal diameter, excessively steep or flat cornea, 8 deep eye orbit, dry-eye syndrome, or epithelial basement membrane dystrophy, or psychological, such as fear of a corneal cut or the idea of corneal tissue removal.Conductive keratoplasty (CK), a less-invasive procedure for the treatment of hyperopia and astigmatism, [19][20][21][22][23][24][25][26] does not involve flap creation and therefore flap-related complications, is nonlaser, produces a larger functional optical zone than LASIK, 24 significantly improves near vision, 25 and operates outside the central clear zone of the cornea.With CK, high-frequency (radio frequency 350 kHz), low-energy current is delivered within the stroma of the peripheral cornea with a keratoplasty tip inserted in the cornea. 26 The technique uses electrical properties of the…”

“…[1][2][3][4][5][6][7][8][9][10][11] However, many patients are not good candidates for a hyperopic laser procedure and might opt for a thermokeratoplasty treatment. [16][17][18][19][20][21][22][23][24][25][26][27][28] The considerations are either anatomical, such as small corneal diameter, excessively steep or flat cornea, 8 deep eye orbit, dry-eye syndrome, or epithelial basement membrane dystrophy, or psychological, such as fear of a corneal cut or the idea of corneal tissue removal.…”

Applicator for RF Thermokeratoplasty: Feasibility Study Using Theoretical Modeling and Ex Vivo Experiments

“…The temperature of the corneal stroma is raised to achieve the irreversible shrinkage of collagen fibers. By using a particular lesion pattern it is possible to change the corneal curvature in a controlled way and therefore to correct refractive errors such as hyperopia (Pallikaris et al 2005), presbyopia (Stahl 2007) and astigmatism .…”