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- Title
The dynamic changes and influencing factors of visual symptoms after small incision lenticule extraction.
- Authors
Chen, Han; Mao, Xiuyu; Xu, Dongye; Guo, Chenwen; Dai, Jinhui
- Abstract
Background: To investigate the dynamic changes and influencing factors of visual symptoms after small incision lenticule extraction (SMILE). Methods: This was a prospective observational study. Visual symptoms including glare, haloes, starbursts, hazy vision, fluctuation, blurred vision, double vision and focusing difficulties were evaluated before and 1, 3, 6 months after SMILE using a questionnaire. Generalized linear mixed models were used to assess the effects of preoperative characteristics and objective visual quality parameters on postoperative visual symptoms. Results: 73 patients/146 eyes were enrolled. Preoperatively, the most common symptoms were glare (55% of eyes), haloes (48%), starbursts (44%) and blurred vision (37%). At 1 month postoperatively, the incidence and extent scores of glare, haloes, hazy vision and fluctuation rose significantly. At 3 months, the incidence and extent scores of glare, haloes and hazy vision restored to baseline. And at 6 months, the extent scores of fluctuation returned to baseline. Other symptoms (e.g., starbursts) did not change before and 1, 3, 6 months after SMILE. Preoperative visual symptoms were associated with postoperative symptoms, as patients with a symptom preoperatively had higher postoperative scores for that symptom. Age was related to postoperative extent of double vision (coefficient = 0.12, P = 0.046). There were no significant associations between postoperative visual symptoms and preoperative SE, scotopic pupil size, angle kappa (with intraoperative adjustment), postoperative HOAs or scattering indexes. Conclusions: The incidence and extent scores of hazy vision, glare, haloes and fluctuation increased at the first month after SMILE, and recovered to baseline at 3 or 6 months. Preoperative visual symptoms were associated with the postoperative symptoms and should be fully considered before SMILE.
- Subjects
DIPLOPIA; SYMPTOMS; STARBURSTS; PUPIL diseases
- Publication
BMC Ophthalmology, 2023, Vol 23, Issue 1, p1
- ISSN
1471-2415
- Publication type
Article
- DOI
10.1186/s12886-023-02964-8