Nighttime Symptoms After Monocular SMILE: A Contralateral Eye Study

Zhao, Wuxiao; Han, Tian; Li, Meiyan; Sekundo, Walter; Aruma, Aruma; Zhou, Xingtao

doi:10.1007/s40123-021-00396-5

Cited by 7 publications

(5 citation statements)

References 23 publications

(33 reference statements)

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“…This study evaluated the visual outcomes after SMILE in the early stages and found that the safety index was 1.28 and the efficacy index was 1.20, indicating that SMILE surgery is safe and effective for high and low-to-moderate myopia. This result is consistent with the results of Zhao et al 20 and Miao et al, 21 and there is mounting evidence of the safety and efficacy of SMILE globally. [22][23][24] The disk halo size in HM and LM after SMILE manifested different characteristics.…”

Section: Discussionsupporting

confidence: 93%

“…All SMILE procedures were performed by the same surgeon (XZ), and the procedural details were reported by Zhao et al 20 All surgeries were conducted using the VisuMax ® femtosecond laser platform (Carl Zeiss Meditec, Jena, Germany) with the cap diameter set to 7.5 mm, a cap thickness of 120 μm, a 6.1 to 6.8-mm lenticule diameter range, and an incision located at 12:00 with a 2-mm side cut for lenticule extraction.…”

Section: Methodsmentioning

confidence: 99%

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Evaluating early-stage disk halo changes after small incision lenticule extraction

Zhao

Zhang

et al. 2022

European Journal of Ophthalmology

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Purpose To investigate early changes in the disk halo under different light conditions after myopic small incision lenticule extraction (SMILE). Methods This prospective study included 70 eyes of 70 myopic patients aged 18–33 years, with a spherical equivalent (SE) of −5.87 ± 1.86 D, who underwent SMILE. The subjective refraction, higher-order aberrations (HOAs), pupillometry, and halo were measured preoperatively and postoperatively to analyse disk halo variations and correlated factors. Results At 5 cd/m2 and 1 cd/m2 luminance, the halo radius in the high myopia (HM) group reached a postoperative peak after 1 week ( p = 0.000 and 0.019, respectively), and recovered to baseline after 3 months. In the low-to-moderate (LM) myopia group, the halo radius did not differ 1 week postoperatively compared to the preoperative level ( p = 0.015), but significantly improved after 3 months ( p = 0.000). The halo radius correlated with SE, uncorrected distance visual acuity (UDVA), ocular HOAs, coma, and the pupillary light reflex in the LM group at all time points, but there were no correlations in the HM group. Conclusions Halo symptoms occurred early after SMILE, but recovered within 3 months. The recovery process was slower in the HM group than in the LM group, and the halo radius correlated with SE, UDVA, ocular HOAs, coma, and the pupillary light reflex.

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Section: Discussionsupporting

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Evaluating early-stage disk halo changes after small incision lenticule extraction

Zhao

Zhang

et al. 2022

European Journal of Ophthalmology

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“…Apart from these results, studies on changes in glare after femtosecond laser refractive surgery have demonstrated similar results [ 7 , 11 , 12 ]. A study of nighttime symptoms in SMILE-treated eyes were compared to those of unoperated eyes for the same patients, and no differences were noted in terms of halo size [ 9 ]. Moreover, Han et al investigated disk halo size (at 5 cd/m 2 ) at 1 week and 3 months after SMILE and reported that SMILE induced a significant increase in halo size at 1 week postoperatively but that no change was observed at 3 months postoperatively [ 13 ].…”

Section: Discussionmentioning

confidence: 99%

“…As described previously [ 9 ], patients were tested unilaterally at a viewing distance of 2.5 m from the monitor (MonPack One, Metrovision, France) after 5 min of dark adaptation. Luminance conditions were consecutively set to 1, 5, and 100 cd/m 2 .…”

Section: Methodsmentioning

confidence: 99%

Characteristics of disk halo size and its correlation with lenticule quality in small incision lenticule extraction for moderate to high myopia

Zhao¹,

Zhao²,

Wang³

et al. 2023

Graefes Arch Clin Exp Ophthalmol

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Purpose To investigate changes in disk halo size after small incision lenticule extraction (SMILE) and the correlation between halo size and lenticule quality in moderate to high myopia. Methods Thirty eyes of 30 consecutive patients (mean age, 24.9 ± 4.5 years; mean spherical equivalent, −6.85 ± 1.18 D) undergoing SMILE were included in this prospective study. Lenticule surface quality was accessed with a scanning electron microscopy by a scoring system. Halo size was measured preoperatively and at 1, 3, and 6 months postoperatively. Multiple linear regression analysis was performed to explore associations between halo size and a range of factors, including lenticule quality. Results Disk halo size increased slightly at 1 month and then recovered continually from 3 to 6 months postoperatively, with no difference between halo size during the preoperative period and at 6 months postoperatively (P > 0.05). One month after SMILE, halo size (1 cd/m2, 5 cd/m2) was associated only with uncorrected distance visual acuity (P ≤ 0.004). A halo size of 5 cd/m2 at 3 months postoperatively correlated with the anterior surface quality of the lenticule (P = 0.046). At 6 months postoperatively, a halo size of 1 cd/m2 was associated only with the baseline, accounting for 11.9% of the variability (P = 0.041); no correlations were found for the halo size of 5 cd/m2. Conclusions Disk halo size after SMILE was enlarged at an early stage postoperatively and subsequently declined to the baseline level during a 6-month follow-up. The quality of the lenticule surface influenced halo size changes in the early phase.

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“…The incidence and severity of night vision disturbances were evaluated using a questionnaire provieded in supplementary Table 1 which was adminstered by Zhao et al for measuring the visual quality of patients undergoing SMILE [ 17 ]. Recipients were asked to evaluate their current night vision disturbances (glare, halos, starburst and visual distortion) using a 4-level scale of none, mild, moderate, or severe.…”

Section: Methodsmentioning

confidence: 99%

Four-year visual outcomes and optical quality of SMILE and implantable collamer lens V4c (EVO-ICL) implantation for high myopia: a retrospective study

Luo,

Aruma,

et al. 2023

BMC Ophthalmol

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Background To compare the 4-year visual outcomes of implantable collamer lens V4c (EVO-ICL) implantation and small incision lenticule extraction (SMILE) for high myopia and astigmatism. Methods This retrospective case study included 64 eyes of 40 patients. These patients with preoperative manifest refraction spherical equivalent (SE) between − 6.00 and − 10.00 diopters (D) were screened from the database of SMILE and EVO-ICL implantation procedures in 2015. The ICL group [32 eyes of 19 patients (mean age, 29.6 ± 6.3 years); mean SE, -8.71 ± 1.06 D] and SMILE group [32 eyes of 21 patients (mean age, 27.7 ± 5.6 years); mean SE, -8.35 ± 0.65D] were compared. All patients were then prospectively examined at a four-year follow-up for routine postoperative examinations, higher-order ocular aberrations, retinal image quality and a questionnaire. Results The safety indexes were 1.15 ± 0.14 and 1.22 ± 0.21 (P = 0.36) for the SMILE and ICL groups, respectively. No eyes lost two or more lines of CDVA in either group. The efficacy indexes were 0.97 ± 0.16 and 0.96 ± 0.19 (P = 0.87), respectively. Twenty-three eyes (72%) in ICL and 26 eyes (81%) in SMILE groups were within ± 0.5 D of the attempted SE (P < 0.01). ICL-treated eyes had significantly less spherical aberration and coma (P < 0.01 and < 0.05, respectively) postoperatively. Halos were the prevalent visual disturbance in both groups. Conclusion SMILE and EVO-ICL implantation provided safe and effective correction of high myopia. SMILE showed slightly better long-term predictability. Mild postoperative visual disturbances were observed after ICL and SMILE at 4-year follow-up.

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Nighttime Symptoms After Monocular SMILE: A Contralateral Eye Study

Cited by 7 publications

References 23 publications

Evaluating early-stage disk halo changes after small incision lenticule extraction

Evaluating early-stage disk halo changes after small incision lenticule extraction

Characteristics of disk halo size and its correlation with lenticule quality in small incision lenticule extraction for moderate to high myopia

Four-year visual outcomes and optical quality of SMILE and implantable collamer lens V4c (EVO-ICL) implantation for high myopia: a retrospective study

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