THE IMPACT OF BILATERAL VISION STATUS ON VISION-RELATED QUALITY OF LIFE IN PEOPLE WITH DIABETES MELLITUS.

PURPOSE: To assess the impact of bilateral vision status on vision-related quality of life (VR-QOL) in patients with Type 2 diabetes in a Chinese cohort. METHODS: Patients with presenting visual acuity (PVA) and VR-QOL data from the Fushun Diabetic Retinopathy Cohort Study were included. Vision-related quality of life was assessed using the National Eye Institute Visual Function Questionnaire-25. Monocular PVA (Snellen) was categorized into three levels for both the better-seeing eye and worse-seeing eye: 1) high PVA (H, > 6/18); 2) moderate PVA (M, 6/18-6/60); and 3) low PVA (L, < 6/60). Based on the monocular PVAs, six categories of bilateral vision status were defined (H-H, H-M, H-L, M-M, M-L, and L-L). The parameters of VR-QOL were analyzed between the groups. RESULTS: A total of 1,717 patients were enrolled. For better-seeing eyes in the same PVA level, the Visual Function Questionnaire-25 composite score decreased significantly with declining PVA in the worse-seeing eye (H-M vs. H-L: 80.5 ± 17.9 vs. 73.6 ± 22.5, P = 0.01; M-M vs. M-L: 78.7 ± 19.6 vs. 69.1 ± 26.4, P = 0.01). Conversely, for worse-seeing eyes in the same PVA level, there was no significant difference in the Visual Function Questionnaire-25 composite score as PVA changed in the better-seeing eye (H-M vs. M-M, 80.5 ± 17.9 vs. 78.7 ± 19.6, P = 0.30; H-L vs. M-L: 73.6 ± 22.5 vs. 69.1 ± 26.4, P = 0.25). CONCLUSION: The PVA of the worse-seeing eye in bilateral vision has a greater impact on VR-QOL in diabetic patients. Priority treatment may be considered for the worse-seeing eye for diabetic patients with different bilateral vision statuses, to better improve VR-QOL.

Intraocular lens-blocking technique for intraocular foreign body removal.

The aim of this study was to describe a novel technique for intraocular foreign body (IOFB) removal. Phacoemulsification was performed in all patients, followed by a complete microincision vitrectomy to free all tissues surrounding the IOFB. A three-piece intraocular lens (IOL) was placed in the capsular bag, and an opening was made in the upper center of the capsule. The IOFB was removed and lifted to the anterior chamber through the capsular opening and IOL edge. The IOFB was confined to the anterior chamber by the IOL, and then easily extracted through the main corneal incision. The technique was adopted in six eyes of six patients. All IOFBs were removed successfully in all patients without intraoperative or postoperative complications. The IOL-blocking technique is a useful approach for IOFB removal.

Reversed scleral tunnel technique for repair of iridodialysis after blunt force trauma: a retrospective clinical study.

BACKGROUND: To investigate the efficacy and safety of reversed scleral tunnel technique for repairing iridodialysis after blunt force trauma. METHODS: A total of 51 eyes of 51 patients with iridodialysis undergoing surgery were included in this study. Patients were divided into 2 groups: group A (the reversed scleral tunnel technique) and group B (the control group). Before the procedure and at 1, 3, and 6 months afterward, data on the patients' age, gender, treatments, diagnosis, mechanism of injury, best-corrected visual acuity (BCVA), intraocular pressure (IOP), degree of iridodialysis, lens status, concomitant ocular damage, number of sutures, complications, and follow-up time were collected and compared between the 2 groups. RESULTS: Iridodialysis was repaired and the pupil shape was restored to nearly round in all eyes. Standard phacoemulsification or lens removal was performed in all eyes. A final BCVA ≥20/60 was achieved in 13 eyes (48.1%) in Group A and 13 eyes (54.2%) in Group B. The IOP remained stable during the follow-up period in all eyes except 2 eyes (7.4%) in Group A and 3 eyes (12.5%) in Group B with angle recession. There were no statistically significant differences in BCVA and IOP between group A and group B. Intraoperatively, A significantly lower percentage of extensive subconjunctival hemorrhage occurred in Group A compared to Group B (1 eye versus 24 eyes, χ2 = 47.1, P = 0.00). Hyphema was observed in 2 eyes (7.4%) in Group A and 1 eye (4.2%) in Group B. Postoperatively, two eyes (7.4%) in Group A and 2 eyes (8.3%) in Group B developed retinal detachment. No other complications were noted during the follow-up period. CONCLUSIONS: The reversed scleral tunnel technique is a safe and effective approach for repairing iridodialysis after blunt force trauma with few complications, favorable cosmetic and visual outcomes.

Posterior corneal surface differences between non-laser in situ keratomileusis (LASIK) and 10-year post-LASIK myopic eyes.

PURPOSE: To evaluate the posterior corneal surface differences between non-laser in situ keratomileusis (LASIK) and 10-year post-LASIK myopic eyes. METHODS: The study included 130 eyes from 65 patients, who were treated with myopic LASIK 10 years ago. In addition, 130 eyes from 65 unoperated myopic patients of matching present age and preoperative refraction were divided into control group. Data on the posterior corneal surface and anterior chamber were obtained from Pentacam software and compared between the groups. Postoperative visual acuity (VA) and refractive error were also analysed. RESULTS: The mean preoperative spherical equivalent (SE) was -6.99 ± 1.78 dioptre (D) in the LASIK group. Ten years after surgery, the mean SE was -0.45 ± 1.22 D, the efficacy index was 0.98, and the safety index was 1.01. The posterior corneal elevations of the LASIK group at 2 mm corneal diameter were significantly lower than those of the control group. However, posterior corneal elevations at 6 mm corneal diameter were higher in the LASIK group than the controls (p < 0.01 for all). The mean Q-values of posterior corneal surface demonstrated significant positive direction compared to that of control eyes at 6 and 7 mm corneal diameters (p < 0.05 for both). At the thinnest point of the cornea, the anterior chamber depths were shallower in the LASIK group than in controls. Meanwhile, the anterior chamber volumes (ACV) were smaller in the LASIK group than in the control group. CONCLUSION: Our results demonstrated that the posterior corneal surface tends to show signs of central flattening and peripheral steepening 10 years after myopic LASIK surgery compared to that of non-operated myopic eyes.