ABSTRACT
AIM: To investigate the effects of placement of the absorbable packing material Nasopore around the anastomosis site on postoperative re-bleeding, discomfort, and on the success rate of endoscopic dacryocystorhinostomy(En-DCR).METHODS: Prospective randomized controlled study. A total of 101 patients(101 eyes)diagnosed with chronic dacryocystitis that underwent En-DCR in the ophthalmology department, Renmin Hospital, Hubei University of Medicine from November 2020 to October 2021 were collected. The patients were randomly divided into two groups according to whether they were packed with Nasopore at the end of operation, namely, the packed group(49 eyes)and the non-packed group(52 eyes). The postoperative follow-up was 9 mo, the degree of re-bleeding, discomfort, and postoperative success rate(including anatomical success rate and functional success rate)were compared between the two groups of patients.RESULTS: This study included 94 patients, including 45(45 eyes)and 49(49 eyes)in packed group and non-packed group, respectively. The En-DCR was performed successfully in all patients. Postoperative re-bleeding occurred in 1 eye(2%)in the packed group, and 9 eyes(18%)in the non-packed group(P<0.05); postoperative nasal discomfort occurred in 2 cases(4%)in the packed group, and 9 cases(18%)in the non-packed group(P<0.05); The success rate of postoperative anatomical success rate was 93%(42/45)in the packed group and 88%(43/49)in the non-packed group(P>0.05). The postoperative functional success rate was 89%(40/45)in the packed group and 86%(42/49)in the non-packed group(P>0.05). Other complications such as orbital fat prolapse, cerebrospinal fluid leakage, sinusitis, visual impairment and double vision were not observed in all patients during the follow-up.CONCLUSION: Nasal packing absorbable material Nasopore around the anastomosis at the end of En-DCR operation can reduce postoperative re-bleeding and postoperative discomfort of patients, and it has no obvious effect on the postoperative success rate.
ABSTRACT
Background The incidence of dry eye is increasing among young adults because of wide usage of video display terminal.But the early diagnosis of dry eye still presents challenge to medical practitioners.The accurate diagnosis and treatment of the dry eye,therefore,is a topic of high interest to researchers.Previous examination outcome of dry eye is interferred primarily due to invasive procedure.It is very important to search an examination approach.Objective This study was to use Keratograph 5M,a non-invasive ocular surface analyzer to evaluate the influence of watching video display terminal on ocular surface and tear film.Methods Eighty-one eyes of 81 health volunteers among 18-30 years were enrolled in Affiliated Eye Hospital of Nanchang University from March 1,2015 to November 10,2015 under the informed consent,including 39 males and 42 females.The subjects watched the computer for continuously 3 hours under the nature light,and ocular surface related examinations were performed and compared before and after video display terminal exposure,including non-invasive tear film break-up time (NITBUT),tear meniscus height,conjunctival hyperemia scoring,limbal congestion scoring,corneal fluorescein staining scoring,meibomian gland imaging and lipid layer analysis.Results The number of eyes with visual fatigue,dryness,pain,blurring and conjunctival congestion was significantly increased after 3-hour video display terminal exposure in comparison with before (all at P＜0.01).The initial NITBUT and mean NITBUT were (6.086± 3.701) s and (9.103 ± 4.680) s,and tear meniscus height was (0.190 ± 0.032) mm after trail,which were significantly lower than (11.445 ±4.964) s,(14.626 ±4.467) s and (0.212 ±0.040) mm of before trail,respectively;The conjunctical hyperemia scoring and limbal congestion scoring were 0.869 ±0.311 and 0.572 ±0.276 after trial,which were significantly higher than 0.780 ± 0.306 and 0.509 ± 0.266 before trail,showing significant differences before and after exposure of video display terminal (all at P＜0.01).The intraocular pressure and the eye number of different scores of corneal fluorescence staining,abnormal meibomian gland and different morphological lipid layer of tear were unchanged before and after exposure of video display terminal.Conclusions Long-term exposure of video display terminal results in significant and temporary adverse influence on tear film and ocular surface.Keratograph 5M non-invasive ocular sudace analyzer can objectively assess overall ocular surface conditions.