Refractive Surgical Correction of Presbyopia with the AcuFocus Small Aperture Corneal Inlay: Two-Year Follow-Up

Abstract

The ACI 7000 seems to provide a safe and effective treatment for presbyopia over follow-up of 2 years.

Presbyopic LASIK Using Hybrid Bi-Aspheric Micro-Monovision Ablation Profile for Presbyopic Corneal Treatments

“…A brief summary and comparison of the clinical studies with different methods to treat presbyopia is presented in Table 1, although intermediate visual acuity is not included due to the unavailability of this metric in most studies. However, Seyeddain et al 26 reported in their cohort, 71.9% treatments achieving 20/20 or better UIVA compared to the 63% reported in our cohort. Methods depending only on the depth of focus might face difficulty to create more than 1.5D of near vision independence.…”

Comparison of binocular through-focus visual acuity with monovision and a small aperture inlay

“…Without the need of a real implantation, the instrument realistically simulates different aspects of monocular and binocular visual conditions with the small aperture approach. When comparing visual performance with the simulated small aperture with clinical results [4,6], both monocular and binocular distance VA are in good agreement. However, near VAs are lower in this study by about 1-2 lines.…”

“…The efficacy of small aperture monovision [4,5,21,22,26] and traditional monovision [20,[27][28][29] has been investigated in several studies. However, no direct comparison has been performed so far.…”

“…Based on small-aperture monovision, it extends depth of focus (DOF) of the eye it is implanted in [3]. Clinical studies support efficacy and safety of the device for presbyopia treatment with published data of up to three years [4][5][6]. The intrastromal corneal inlay is a 5 μm thick polyvinylidene fluoride ring opacified by carbon nanoparticles.…”

Vision Status: Presbyopic Patient Undergone Corneal Inlay Procedure

“…It is an opaque material measuring 3.8 mm diameter and 1.6 mm diameter of opening at the center with 8,400 microperforation to allow flow of nutrients and metabolites in cornea layers. It works based on the depth of focus principle (pinhole effect) (Seyeddain et al 2010). The inlay is implanted by a refractive surgeon on the cornea stromal layer by creating a corneal flap using a femtosecond laser.…”