Stereoacuity after small aperture corneal inlay implantation

Abstract

Steven H Linn,1 David F Skanchy,2 Tyler S Quist,3 Jordan D Desautels,4 Majid Moshirfar1,5 1Department of Clinical Research, HDR Research Center, Hoopes Vision, Draper, UT, 2McGovern Medical School, The University of Texas Health Science Center at Houston, TX, 3University of Utah School of Medicine, Salt Lake City, UT, 4Tufts University School of Medicine, Boston, MA, 5John A Moran Eye Center, Department of Ophthalmology and Visual Sciences, University of Utah School of Medicine, Salt Lake City, UT, USA Purpose: The aim of this study was to compare stereoacuity before and after KAMRA corneal inlay implantation for the correction of presbyopia.Patients and methods: This is a prospective study of 60 patients who underwent KAMRA inlay implantation. Patients were examined before and 6 months after surgery for stereoacuity, uncorrected distance visual acuity (UDVA), and uncorrected near visual acuity (UNVA).Results: The mean stereoacuity before surgery was 29.5±28.1 arcsec (range: 20–200) and at 6 months was 29.8±26.4 arcsec (range: 20–200). The decline in stereoacuity was not statistically significant. At 6 months follow-up, UDVA was 20/25 or better in all 60 patients and UNVA was J2 (20/25) or better in 51 (85%) patients.Conclusion: There is no significant change in stereoacuity following KAMRA inlay implantation. The KAMRA inlay is a good treatment option for improving near vision in presbyopic patients while preserving stereoacuity and distance vision. Keywords: KAMRA, corneal inlay, AcuFocus, stereoacuity, presbyopia 

Keywords

• stereoacuity
• corneal inlay
• KAMRA
• AcuFocus
• monovision
• presbyopia correction