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Comparison of the Optical Quality between Small Incision Lenticule Extraction and Femtosecond Laser LASIK

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ABSTRACT

Purpose. To investigate the visual quality after SMILE and Femto-LASIK. Methods. About 123 eyes from 63 patients were enrolled in this study. The parameters were measured preoperatively and 1 week, 1 month, and 3 months postoperatively using Sirius System. Results. The MTF curve increase slightly from low to high frequency at 3 mm and 6 mm pupil diameter after SMILE surgery (P < 0.05) during the follow-up time comparing with the preoperative values. And the SR has a significant increase at various pupil diameters as well (P < 0.05). However, there was little increase for MTF at intermediate to high frequency at 3 mm pupil diameter after Femto-LASIK procedure (P < 0.05). And the SR had only significant increase at 3 mm pupil diameter. Between SMILE and Femto-LASIK, there was no statistic difference both in MTF and SR (P > 0.05) at 3 mm pupil diameter at vertical and horizontal meridian. However, significant difference was found in MTF at low to mediate frequency at 6 mm pupil diameter at vertical meridian at 1 week postoperatively (P < 0.05). Conclusions. Both SMILE and Femto-LASIK show a great improvement in optical quality at small diameter. It was found that SMILE shows better optical quality than Femto-LASIK at larger pupil diameter, which might be good for the night vision.

No MeSH data available.


Changes in ΔStrehl ratio values between SMILE and Femto-LASIK procedures ((a) 3 mm pupil diameter, (b) 6 mm pupil diameter). ∗Significant differences (P < 0.05) in ΔStrehl ratio values between SMILE and Femto-LASIK procedures.
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fig6: Changes in ΔStrehl ratio values between SMILE and Femto-LASIK procedures ((a) 3 mm pupil diameter, (b) 6 mm pupil diameter). ∗Significant differences (P < 0.05) in ΔStrehl ratio values between SMILE and Femto-LASIK procedures.

Mentions: Significant differences in ΔStrehl ratio values of 6 mm pupil diameter between SMILE and Femto-LASIK procedures were shown between SMILE and Femto-LASIK procedures at 1 week, 1 month, and 3 months postoperatively (P = 0.038, 0.039, and 0.023, resp.). However, significant difference in ΔStrehl ratio values of 3 mm pupil diameter was only found at 1 month postoperatively (P < 0.05) between SMILE and Femto-LASIK procedures (Figure 6).


Comparison of the Optical Quality between Small Incision Lenticule Extraction and Femtosecond Laser LASIK
Changes in ΔStrehl ratio values between SMILE and Femto-LASIK procedures ((a) 3 mm pupil diameter, (b) 6 mm pupil diameter). ∗Significant differences (P < 0.05) in ΔStrehl ratio values between SMILE and Femto-LASIK procedures.
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC5121460&req=5

fig6: Changes in ΔStrehl ratio values between SMILE and Femto-LASIK procedures ((a) 3 mm pupil diameter, (b) 6 mm pupil diameter). ∗Significant differences (P < 0.05) in ΔStrehl ratio values between SMILE and Femto-LASIK procedures.
Mentions: Significant differences in ΔStrehl ratio values of 6 mm pupil diameter between SMILE and Femto-LASIK procedures were shown between SMILE and Femto-LASIK procedures at 1 week, 1 month, and 3 months postoperatively (P = 0.038, 0.039, and 0.023, resp.). However, significant difference in ΔStrehl ratio values of 3 mm pupil diameter was only found at 1 month postoperatively (P < 0.05) between SMILE and Femto-LASIK procedures (Figure 6).

View Article: PubMed Central - PubMed

ABSTRACT

Purpose. To investigate the visual quality after SMILE and Femto-LASIK. Methods. About 123 eyes from 63 patients were enrolled in this study. The parameters were measured preoperatively and 1 week, 1 month, and 3 months postoperatively using Sirius System. Results. The MTF curve increase slightly from low to high frequency at 3&thinsp;mm and 6&thinsp;mm pupil diameter after SMILE surgery (P &lt; 0.05) during the follow-up time comparing with the preoperative values. And the SR has a significant increase at various pupil diameters as well (P &lt; 0.05). However, there was little increase for MTF at intermediate to high frequency at 3&thinsp;mm pupil diameter after Femto-LASIK procedure (P &lt; 0.05). And the SR had only significant increase at 3&thinsp;mm pupil diameter. Between SMILE and Femto-LASIK, there was no statistic difference both in MTF and SR (P &gt; 0.05) at 3&thinsp;mm pupil diameter at vertical and horizontal meridian. However, significant difference was found in MTF at low to mediate frequency at 6&thinsp;mm pupil diameter at vertical meridian at 1 week postoperatively (P &lt; 0.05). Conclusions. Both SMILE and Femto-LASIK show a great improvement in optical quality at small diameter. It was found that SMILE shows better optical quality than Femto-LASIK at larger pupil diameter, which might be good for the night vision.

No MeSH data available.