Purpose: To analyze the relationship between tear meniscus dimensions and higher-order aberrations (HOAs) in patients with lacrimal passage obstruction using anterior segment optical coherence tomography (AS-OCT).Methods This study was a retrospective observational study of 71 eyes of 49 patients with lacrimal passage obstruction. These patients received sheath-guided dacryoendoscopic probing and bicanalicular intubation (SG-BCI) at Toyama University Hospital between August 2020 and October 2021. Using AS-OCT, tear meniscus height (TMH), tear meniscus area (TMA), and total higher-order aberration (HOA) values were measured before and after surgery.Results Surgical success was achieved in 69 eyes (97.1%). At the nal observation, 62 eyes showed lacrimal patency (89.8%). The preoperative TMH, TMA, and HOA values were 1.55 ± 0.96 mm, 0.11 ± 0.14 mm 2 , and 0.37 ± 0.27 µm, respectively, and the nal postoperative TMH, TMA, and HOA values were 0.97 ± 0.74 mm (p<0.0001), 0.06 ± 0.11 mm 2 (p=0.02), and 0.29 ± 0.16 µm (p=0.001), respectively. The results showed a signi cant improvement. The changes in HOAs before and after surgery were positively correlated with the changes in TMH (r = 0.3476, p = 0.0241) and TMA (r = 0.3653, p = 0.0174).Conclusion SG-BCI for lacrimal passage obstruction resulted in a signi cant decrease in measured HOAs. The decrease in HOAs was correlated with decreases in tear meniscus dimensions.

Purpose To examine changes in parameters of the visual field test before and after blepharoptosis surgery in patients with glaucoma. Methods Twenty-three eyes of 14 glaucoma patients who underwent blepharoptosis surgery at Toyama University Hospital between July 2015 and September 2020 were included in this study. Pre- and post-operative values for the mean deviation (MD), pattern standard deviation (PSD) and total deviation (TD) of the upper or lower hemi-visual field in the Humphrey visual field test, best-corrected visual acuity (BCVA), intraocular pressure (IOP), and margin reflex distance (MRD)-1 were compared. Results MRD-1 showed a significant improvement after blepharoptosis surgery (preoperative MRD-1: 1.0 ± 0.82 mm, postoperative MRD-1: 3.26 ± 0.66 mm, p < 0.001). There were no significant differences in BCVA, IOP, MD and PSD values before and after surgery. On the other hand, there was a significant improvement in the superior TD (preoperative: −11.29 ± 6.57 dB, postoperative: −9.88 ± 7.31 dB, p = 0.044) although no significant difference was detected in the inferior TD postoperatively. The preoperative parameters of 2 groups (improvement and non-improvement groups of postoperative superior TD) were compared. Preoperative MD and superior TD were significantly lower in the improvement group (p = 0.03, p = 0.004, respectively), although there was no significant difference in preoperative PSD and inferior TD between the two groups. Conclusion In glaucoma patients, blepharoptosis may interfere with accurate visual field assessment, especially of superior TD.

Purpose: To analyze the relationship between tear meniscus dimensions and higher-order aberrations (HOAs) in patients with lacrimal passage obstruction using anterior segment optical coherence tomography (AS-OCT).Methods：This study was a retrospective observational study of 71 eyes of 49 patients with lacrimal passage obstruction. These patients received sheath-guided dacryoendoscopic probing and bicanalicular intubation (SG-BCI) at Toyama University Hospital between August 2020 and October 2021. Using AS-OCT, tear meniscus height (TMH), tear meniscus area (TMA), and total higher-order aberration (HOA) values were measured before and after surgery. Results：Surgical success was achieved in 69 eyes (97.1%). At the final observation, 62 eyes showed lacrimal patency (89.8%). The preoperative TMH, TMA, and HOA values were 1.55 ± 0.96 mm, 0.11 ± 0.14 mm2, and 0.37 ± 0.27 µm, respectively, and the final postoperative TMH, TMA, and HOA values were 0.97 ± 0.74 mm (p<0.0001), 0.06 ± 0.11 mm2 (p=0.02), and 0.29 ± 0.16 µm (p=0.001), respectively. The results showed a significant improvement. The changes in HOAs before and after surgery were positively correlated with the changes in TMH (r = 0.3476, p = 0.0241) and TMA (r = 0.3653, p = 0.0174).Conclusion：SG-BCI for lacrimal passage obstruction resulted in a significant decrease in measured HOAs. The decrease in HOAs was correlated with decreases in tear meniscus dimensions.