ABSTRACT
Objective:To investigate the efficiency and safety of pneumatic retinopexy for rhegmatogenous retinal detachment (RRD).Methods:A prospective case series study. From January 2020 to December 2021, 27 eyes of 27 RRD patients in Joint Shantou International Eye Center were included. Among them, there were 10 males and 17 females; the mean age was 36.0±11.8 years old. There was recurrent retinal detachment in 4 eyes. Best corrected visual acuity (BCVA) and optical coherence tomography were performed. According to whether the retina was successfully reattached after a single intravitreal injection, the patients were divided into a single operation group and a second operation group. All eyes underwent pneumatic retinopexy, the patients received intravitreal injection of 0.3-0.5 ml 100% C 3F 8. On the next day, laser photocoagulation was performed around the retinal breaks. The mean follow-up time was 15.0±6.0 months. Outcome measures included single operation success rate, the BCVA at the last follow up and complications. The age, gender, extent of retinal detachment, number of retinal breaks, and preoperative and postoperative BCVA of patients in the single operation group and the second operation group were compared using Mann-Whiteney test or Fisher's exact test. Results:Twenty of the 27 eyes (74.1%, 20/27) had retinal reattachment after single operation, 7 of the 27 eyes (25.9%, 7/27) had retinal reattachment after the second operation. Among the 7 eyes, retinal detachment recurrence after operation, retinal detachment recurrence after tear opening, and retinal detachment recurrence with new tears occurred in 1, 4, and 2 eyes, respectively; retinas were all reattached after scleral buckling or vitrectomy. The BCVA was stable and improved in 14 and 13 eyes, respectively. Compared with the single operation group, the retinal detachment in the second operation group was wider and the BCVA before operation was worse, the differences were statistically significant ( Z=-2.842,-2.233; P<0.05). Transient intraocular pressure elevation occurred in 5 eyes; no complications such as infectious endophthalmitis, intraocular hemorrhage and lens damage occurred. Conclusion:Pneumatic retinopexy is safe and effective in the treatment of RRD.
ABSTRACT
Objective To investigate the factors correlated with the visual outcome of idiopathic macular holes (IMH) after vitreoretinal surgery.Methods A total of 57 eyes of 57 patients with IMH were included.There were 43 females (43 eyes) and 14 male (14 eyes),mean age was (60.46±4.79) years.All the eyes underwent best corrected visual acuity (BCVA),slit-lamp microscope,three-mirror contact-lens and optical coherence tomography (OCT) examinations.BCVA were examined with interactional visual chart and recorded with logarithm of the minimum angle of resolution (logMAR) acuity.The minimum diameter and base diameter of macular holes and central retinal thickness (CRT) were detected by OCT.The average logMAR BCVA of 57 eyes was 0.98 ± 0.41.The minimum diameter and base diameter of macular holes were (479.53±164.16) μm and (909.14±278.65) μm.All the patients underwent pars plana vitrectomy combined with phacoemulsification cataract extraction and intraocular lens implantation.The mean follow-up period was (173.44 ± 147.46) months.The relationships between final BCVA and these parameters were examined by single and multiple regression analysis.The valuable influence factors were filtrated and formulated using multiple linear regression models.Results At the final follow-up,the logMAR BCVA of 57 eyes was 0.44±0.31,the CRT was (158.79±86.96) μm.The final BCVA was positive related to minimum diameter of macular holes and preoperative BCVA (r =0.420,0.448;P =0.001,0.000),negative related to postoperative CRT (r=-0.371,P=0.004).There was no relationship between the final BCVA and base diameter of macular holes,age and follow-up (r=0.203,-0.015,0.000;P=0.130,0.913,0.999).The incidence of preoperative BCVA for postoperative BCVA was bigger than preoperative minimum diameter of macular holes (P=0.008,0.020).Conclusion The preoperative minimum diameter of macular holes and BCVA are related to postoperative BCVA in IMH eyes.