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Reading performance improves after implantation of corneal inlay
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Emmetropic presbyopic patients had statistically significant changes in reading performance after monocular implantation of a small-aperture corneal inlay, according to a study.
“Patients were enabled to effectively perform everyday reading tasks without correction, better in bright light than in dim light, by having a potentially reversible, monocular, and extraocular procedure,” the study authors said.
The prospective interventional case series analyzed 24 naturally emmetropic and presbyopic patients. Each patient had a Kamra corneal inlay (AcuFocus) implanted in the nondominant eye.
After implantation, subjects were evaluated regarding bilateral uncorrected reading acuity, reading distance, mean and maximum reading speed, and the smallest log-scaled print size that could be read.
Mean reading distance improved from 46.7 ± 6.3 cm preop to 39.5 ± 6.4 cm at 24 months postop (P < .001), and mean reading acuity at best distance improved from 0.33 ± 0.13 logRAD to 0.23 ± 0.11 logRAD (P = .004). Smallest print size that could be read improved from 1.5 ± 0.42 mm to 1.01 ± 0.22 mm (P < .001).
Increases in mean reading speed and mean maximum reading speed were not statistically significant.
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