Preloaded refractive-addition corneal inlay to compensate for presbyopia implanted using a femtosecond laser: One-year visual outcomes and safety

Baily, Caroline; Kohnen, Thomas; O’Keefe, Michael

doi:10.1016/j.jcrs.2013.11.047

Cited by 35 publications

(23 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Thermal alteration of corneal collagen occurs when the tissue is exposed to temperatures of 58°to 75°C. In detail, the collagen matrix changes from the triple helix formation to a partially coiled structure resulting in shrinkage of collagen fibers [10][11][12][13][14]. Opti-K, with the use of sapphire applanation ring, confines thermal elevation into the anterior corneal stroma, which produces limited thermally damaged zones that compact the anterior stromal lamellae while preserving the overlying epithelium.…”

Section: Discussionmentioning

confidence: 99%

Optimal keratoplasty for the correction of presbyopia and hypermetropia

Lanzetta¹

2017

http://isrctn.com/

View full text Add to dashboard Cite

Purpose. To evaluate prospectively the safety and efficacy of optimal keratoplasty for the correction of hyperopia and presbyopia. Methods. Consecutive patients undergoing bilateral optimal keratoplasty for refractive presbyopic and hypermetropic corrections were enrolled. Each patient received a complete ophthalmologic examination at baseline, 1 hour, 1 day, 1 week, 1 month, 3 months, and 6 months after treatment. Results. The study included 40 consecutive eyes of 20 patients. All patients reached the 6-month follow-up. No serious intra-or postoperative complications were recorded. Monocular and binocular uncorrected near visual acuities improved significantly during the follow-up (p < 0 001). Binocular uncorrected distance visual acuity in presbyopic patients improved from 0.28 logMAR to a maximum of 0.04 logMAR (from 20/38 to 20/22 Snellen equivalent) the day after the treatment and remained significantly better than baseline until the end of the follow-up. A significant improvement of patient satisfaction for near (p < 0 001) and distance (p = 0 007) activities was seen the day after treatment and was maintained throughout the follow-up. Conclusions. Optimal keratoplasty is a safe, noninvasive, rapid, pain-free, office-based procedure. It offers low to moderate hyperopes and presbyopes an improvement in uncorrected near visual acuity while maintaining or improving their distance visual acuity.

show abstract

Section: Discussionmentioning

confidence: 99%

Optimal keratoplasty for the correction of presbyopia and hypermetropia

Lanzetta¹

2017

http://isrctn.com/

View full text Add to dashboard Cite

show abstract

“…[18][19][20] With other commercially available inlays, a more significant loss of 2 to 3 lines of UDVA has been reported. [21][22][23] Loss of 1 line of BDVA has been reported between 2.6% and 28.3% with the Kamra inlay. 18,19,20,24 Other authors have reported loss of 1 line of BDVA in 37% to 77% of eyes implanted with other commercially available inlays.…”

Section: ' Postoperative Complicationsmentioning

confidence: 99%

“…18,19,20,24 Other authors have reported loss of 1 line of BDVA in 37% to 77% of eyes implanted with other commercially available inlays. 22,25 Subjective visual complaints such as glare, halos, and night vision problems can occur after inlay implantation, but are mostly mild to moderate in severity and similar to the visual symptoms after LASIK. 19,26 The explantation rate in cases of visual dissatisfaction varies widely across series from 0% to 21%.…”

Section: ' Postoperative Complicationsmentioning

confidence: 99%

“…19,26 The explantation rate in cases of visual dissatisfaction varies widely across series from 0% to 21%. 14,22,[27][28][29] One study concluded that after removal, corneal topography and aberrometry were not permanently affected with a return to preoperative corrected and uncorrected vision in the majority of cases. 30 Advances in the biocompatibility of materials and designs allowing for improved metabolic regulation have made modern inlays much safer than their precursors.…”

Section: ' Postoperative Complicationsmentioning

confidence: 99%

See 1 more Smart Citation

Complications of Intracorneal Implants in Refractive Surgery

Hood

2016

International Ophthalmology Clinics

View full text Add to dashboard Cite

In refractive surgery, the use of intracorneal implants, including intracorneal ring segments (ICRS) and corneal inlays, offer the specific advantage of not removing corneal tissue. As such, they are removable and may preserve options for ametropia or presbyopia correction with current or future modalities. 1,2 However, there are unique intraoperative and postoperative complications that can occur with their implantation that need to be recognized and managed. The following review will focus on the incidence and management of complications from the use of intracorneal implants in refractive surgery. ' ICRS for Correction of MyopiaICRS are polymethylmethacrylate segments implanted in the deep corneal stroma to modify the corneal curvature based on their geometric profile and diameter. Although initially approved for low myopia in the United States in 1999, 2 the technology was soon after used for the treatment of keratoconus. 3 The creation of channels for the placement of ICRS can be performed either mechanically using semicircular dissectors or with a femtosecond laser. Although the femtosecond laser creates channels with a high degree of precision, no published studies have demonstrated higher complications or inferior refractive outcomes for myopia with mechanical channel creation. For the treatment of myopia, ICRS offer the advantage over ablational laser refractive surgery of sparing the visual axis with very low risk of central corneal haze or scarring, and the effects may be reversible with removal of the segments. 2,4,5 Although corneal excimer laser refractive surgery has largely replaced the use of ICRS for myopia due to the excellent outcomes, there may still be a role for ICRS for the treatment of low

show abstract

“…23 The Raindrop Near Vision Inlay (ReVision Optics, Lake Forest, California, USA) is a CI that changes the corneal curvature. Garza et al 21 reported good and stable results at 1 year.…”

Section: Pseudoaccommodative Approachesmentioning

confidence: 99%

A review of the surgical options for the correction of presbyopia

2015

View full text Add to dashboard Cite

Presbyopia is an age-related eye condition where one of the signs is the reduction in the amplitude of accommodation, resulting in the loss of ability to change the eye's focus from far to near. It is the most common age-related ailments affecting everyone around their mid-40s. Methods for the correction of presbyopia include contact lens and spectacle options but the surgical correction of presbyopia still remains a significant challenge for refractive surgeons. Surgical strategies for dealing with presbyopia may be extraocular (corneal or scleral) or intraocular (removal and replacement of the crystalline lens or some type of treatment on the crystalline lens itself). There are however a number of limitations and considerations that have limited the widespread acceptance of surgical correction of presbyopia. Each surgical strategy presents its own unique set of advantages and disadvantages. For example, lens removal and replacement with an intraocular lens may not be preferable in a young patient with presbyopia without a refractive error. Similarly treatment on the crystalline lens may not be a suitable choice for a patient with early signs of cataract. This article is a review of the options available and those that are in development stages and are likely to be available in the near future for the surgical correction of presbyopia.

show abstract

Preloaded refractive-addition corneal inlay to compensate for presbyopia implanted using a femtosecond laser: One-year visual outcomes and safety

Abstract: No author has a financial or proprietary interest in any material or method mentioned.

Cited by 35 publications

References 13 publications

Optimal keratoplasty for the correction of presbyopia and hypermetropia

Optimal keratoplasty for the correction of presbyopia and hypermetropia

Complications of Intracorneal Implants in Refractive Surgery

A review of the surgical options for the correction of presbyopia

Contact Info

Product

Resources

About