OBJECTIVE: To understand the clinical and epidemiological characteristics of human ocular thelaziasis patients in China. METHODS: Case reports regarding human ocular thelaziasis cases in China were retrieved in international and national electronic databases, including CNKI, VIP, CBM, Traditional Chinese Medical Literature Analysis and Retrieval System, Wanfang Database, PubMed and Web of Science from 2011 to 2022. Patients' gender, age, clinical symptoms, treatment, recurrence, site of infections, time of onset, affected eye, affected sites, number of infected Thelazia callipaeda, sex of T. callipaeda and source of infections were extracted for descriptive analyses. RESULTS: A total of 85 eligible publications were included, covering 101 cases of human ocular thelaziasis, including 57 males (56.44%) and 44 females (43.56%) and aged from 3 months to 85 years. The main clinical manifestations included foreign body sensation (56 case-times, 22.49%), eye itching (38 case-times, 15.26%), abnormal or increased secretions (36 case-times, 14.46%), tears (28 case-times, 11.24%) and eye redness (28 case-times, 11.24%), and conjunctival congestion (50 case-times, 41.67%) was the most common clinical sign. The most common main treatment (99/101, 98.02%) was removal of parasites from eyes using ophthalmic forceps, followed by administration with ofloxacin and pranoprofen. In publications presenting thelaziasis recurrence, there were 90 cases without recurrence (97.83%) and 2 cases with recurrence (2.17%). Of all cases, 51.96% were reported in four provinces of Hubei, Shandong, Sichuan, Hebei and Henan, and ocular thelaziasis predominantly occurred in summer (42.19%) and autumn (42.19%). In addition, 56.45% (35/62) had a contact with dogs. CONCLUSIONS The human thelaziasis cases mainly occur in the continental monsoon and subtropical monsoon climate areas such as the Yellow River and the Yangtze River basin, and people of all ages and genders have the disease, with complex clinical symptoms and signs. Personal hygiene is required during the contact with dogs, cats and other animals, and individual protection is required during outdoor activities to prevent thelaziasis.
Animals ; Dogs ; Female ; Humans ; Male ; Bibliometrics ; China/epidemiology* ; Seasons ; Spirurida Infections/epidemiology* ; Thelazioidea ; Eye Diseases/parasitology*

BACKGROUND: The efficacy of two artificial tears, carboxymethylcellulose (CMC) and hyaluronate (HA), was compared in the treatment of patients with dry eye disease. METHODS: We conducted a systematic review and meta-analysis on randomized controlled trials in the PubMed, Embase, Cochrane Library, and ClinicalTrials.gov databases. The efficacy was compared in terms of the mean change from baseline in tear break-up time. The meta-analysis was conducted using both random and fixed effect models. The quality of the selected studies was assessed for risk of bias. RESULTS: Five studies were included involving 251 participants. Random effect model meta-analysis showed no significant difference between CMC and HA in treating dry eye disease (pooled standardized mean difference [SMD]=-0.452; 95% confidence interval [CI], -0.911 to 0.007; P=0.053). In contrast, fixed effect model meta-analysis revealed significant improvements in the CMC group when compared to the HA group (pooled SMD=-0.334; 95% CI, -0.588 to -0.081; P=0.010). CONCLUSION: The efficacy of CMC appeared to be better than that of HA in treating dry eye disease, although meta-analysis results were not statistically significant. Further research is needed to better elucidate the difference in efficacy between CMC and HA in treating dry eye disease.
Bias (Epidemiology) ; Carboxymethylcellulose Sodium* ; Eye Diseases* ; Humans ; Lubricant Eye Drops ; Tears ; Xerophthalmia

PURPOSE: We present clinical results of the use of the multipurpose conical porous synthetic orbital implant (MCOI) in surgical procedures of evisceration, enucleation, and secondary enucleation in ophthalmology patients. METHODS: A retrospective review was performed of 59 eyes in which conical implants were used, including 36 cases of eviscerations, 11 enucleations, and 9 secondary enucleations. In all of the cases, the follow-up period was greater than six months between 2004 and 2013. The results focus on documenting surgical findings, as well as postoperative complications among patients. RESULTS: Superior sulcus deformities were found in six eyes (10.2% of conical implant patients), and two eyes received additional surgical interventions to correct the deformities (3.4%). Blepharoptosis was found in four eyes (6.8%), two of which received upper eyelid blepharoplasty (3.4%). Fornix shortening was reported in only one eye (1.7%). Forty-one eyes had a satisfactory cosmetic appearance after the final prosthetic fitting of conical implants (69.5%). The most frequent postoperative complication was orbital implant exposure, which seemed to occur when the preoperative status of the conjunctiva, Tenon's capsule, and sclera preservation were poor in the eyes of the patients. CONCLUSIONS: There was a lower incidence of blepharoptosis and fornix shortening with the MCOI in comparison to spherical implants, while the incidence of orbital implant exposure was similar with the MCOI in comparison to other types of orbital implants. In addition, the MCOI may have advantages with respect to postoperative cosmetic outcomes.
Adult ; Eye Diseases/*surgery ; *Eye Enucleation ; *Eye Evisceration ; Female ; Follow-Up Studies ; Humans ; Incidence ; Male ; Middle Aged ; *Orbital Implants ; Postoperative Complications/*epidemiology ; Prosthesis Implantation/*methods ; Republic of Korea/epidemiology ; Retrospective Studies ; Time Factors ; Treatment Outcome

PURPOSE: To investigate the patterns and risk factors of the ocular manifestations of acquired immunodeficiency syndrome (AIDS) and their correlation with CD4+ count in the era of highly active antiretroviral therapy (HAART). METHODS: This retrospective study examined 127 AIDS patients who presented to Soonchunhyang University Hospital. Data were collected from patient interviews, clinical examinations, and laboratory investigations. Ophthalmologic examinations included the best-corrected visual acuity, intraocular pressure, anterior segment and adnexal examination, and dilated fundus examination. RESULTS: Of the 127 patients with AIDS, 118 were on HAART and 9 were not. The mean CD4+ count was 266.7 +/- 209.1 cells/microL. There were ocular manifestations in 61 patients (48.0%). The incidence of anterior segment manifestations was higher than posterior segment manifestations at 28.3% and 19.7%, respectively. The mean CD4+ count was significantly (p < 0.05) lower in the patients with posterior versus anterior segment ocular manifestations. The most common ocular manifestation was retinal microvasculopathy (15.0%), followed by keratoconjunctivitis sicca (14.2%), conjunctival microvasculopathy (9.4%), cytomegalovirus retinitis (3.1%), herpes zoster ophthalmicus (2.4%), and blepharitis (1.6%). Retinal microvasculopathy and cytomegalovirus retinitis were common in patients with CD4+ counts <200 cells/microL, while keratoconjunctivitis sicca and conjunctival microvasculopathy were common in patients with CD4+ counts of 200 to 499 cells/microL. There was a significant (p < 0.05) association between ocular manifestation and CD4+ count or age. CONCLUSIONS: The introduction of HAART has changed the landscape of ocular presentations in patients with AIDS. In this study, anterior segment and external ocular manifestations occurred more frequently than posterior segment manifestations. Also, the mean CD4+ count was significantly lower in patients with posterior segment ocular manifestations versus anterior segment ocular manifestations. We found that CD4+ count and age >35 years were independent risk factors for developing ocular manifestations.
Acquired Immunodeficiency Syndrome/*complications ; Adult ; Aged ; Eye Diseases/diagnosis/epidemiology/*etiology ; Female ; Humans ; Incidence ; Male ; Middle Aged ; Republic of Korea/epidemiology ; Retrospective Studies ; Risk Factors ; Visual Acuity ; Young Adult

The Korea National Health and Nutrition Examination Survey (KNHANES) is a national program designed to assess the health and nutritional status of the noninstitutionalized population of South Korea. The KNHANES was initiated in 1998 and has been conducted annually since 2007. Starting in the latter half of 2008, ophthalmologic examinations were included in the survey in order to investigate the prevalence and risk factors of common eye diseases such as visual impairment, refractive errors, strabismus, blepharoptosis, cataract, pterygium, diabetic retinopathy, age-related macular degeneration, glaucoma, dry eye disease, and color vision deficiency. The measurements included in the ophthalmic questionnaire and examination methods were modified in the KNHANES IV, V, and VI. In this article, we provide detailed information about the methodology of the ophthalmic examinations in KNHANES in order to aid in further investigations related to major eye diseases in South Korea.
*Epidemiologic Methods ; Eye Diseases/*epidemiology ; Humans ; Nutrition Surveys/*statistics & numerical data ; Ophthalmology/*methods ; Prevalence ; Republic of Korea/epidemiology ; Risk Factors ; *Surveys and Questionnaires

PURPOSE: To investigate the epidemiology of contact lens (CL)-related complications in Korea. METHODS: A questionnaire regarding CL-related complications including patient's gender, age, causative factors, and signs and symptoms was distributed to members of the Korean Ophthalmological Society by The Korean Contact Lens Study Society and the results of the questionnaire analyzed. RESULTS: Responses to the questionnaire written by ophthalmologists from 22 institutes and clinics were collected from 499 subjects over a 20-month period starting in October 2008 and analyzed. The mean age of respondents was 22.9 years and the male-to-female ratio was 1:8.1. The soft CL and cosmetic colored lens comprised the majority (46.6% and 42.1%, respectively) of the reported cases, followed by the rigid gas permeable lens (RGP lens; 10.6%) and orthokeratology lens (0.8%). In subjects using a cosmetic colored lens, 62.2% showed emmetropia and 89.1% of the lenses were prescribed by opticians. The main complications included corneal erosion, sterile corneal infiltrate, allergic disease, conjunctival injection, corneal ulcer, and dry eye syndrome. The most common causative factor of complications was excessive lens wear. Comparing main causative factors according to the RGP lens prescriber, the most common factor was poor lens fit. CONCLUSIONS: The number of cosmetic colored lens-related complications in the emmetropic eyes of young patients is increasing rapidly. Considering opticians are the main CL prescribers in CL-related complications, Korean ophthalmologists need to pay more attention to CL fitting and constant education of patients regarding proper CL wear and care.
Academies and Institutes ; Conjunctival Diseases ; Corneal Ulcer ; Surveys and Questionnaires ; Dry Eye Syndromes ; Emmetropia ; Epidemiology ; Humans ; Korea* ; Patient Education as Topic

OBJECTIVEThis study aimed to review the available literature on vitreomacular traction (VMT) syndrome and propose the future study prospect in this field.

DATA SOURCESThe data used in this review were mainly obtained from articles listed in Medline and Pubmed (1970-2013). The search terms were "vitreomacular traction", "optical coherence tomography", "vitrectomy", and "ocriplasmin".

STUDY SELECTIONArticles regarding the pathophysiology, diagnosis, and treatments of VMT were selected and reviewed.

RESULTSVMT syndrome is a persistent attachment of vitreous to the macula in eyes with an incomplete posterior vitreous detachment and considered to be an uncommon status which correlated with some other macular disorders. Optical coherence tomography (OCT) can support a new way to examine and classify VMT. Nonoperative and operative intervenes on this disease have been developed recently, especially the intravitreal medical therapy.

CONCLUSIONSVMT syndrome may be associated with various disorders in the macular region, depending in part on the size and strength of the residual vitreomacular adhesion. Regular OCT monitoring is recommended to detect it. Patients with asymptomatic VMT should be observed for at least 2-3 months; nonoperative treatment with ocriplasmin should be considered when disorders persist; surgery is recommended if VMT-related disease is significant.

Eye Diseases ; diagnosis ; epidemiology ; surgery ; Humans ; Retinal Diseases ; diagnosis ; epidemiology ; surgery ; Risk Factors ; Tomography, Optical Coherence ; Vitreous Detachment ; diagnosis ; epidemiology ; surgery

OBJECTIVETo investigate the situation of video-contact and eye diseases for IT industry video operation workers, and to analyze the influencing factors, providing scientific evidence for the make of health-strategy for IT industry video operation workers.

METHODSWe take the random cluster sampling method to choose 190 IT industry video operation workers in a city of Jiangsu province, analyzing the relations between video contact and eye diseases.

RESULTSThe daily video contact time of IT industry video operation workers is 6.0-16.0 hours, whose mean value is (I 0.1 ± 1.8) hours. 79.5% of workers in this survey wear myopic lens, 35.8% of workers have a rest during their working, and 14.2% of IT workers use protective products when they feel unwell of their eyes. Following the BUT experiment, 54.7% of IT workers have the normal examine results of hinoculus, while 45.3% have the abnormal results of at least one eye. Simultaneously, 54.7% workers have the normal examine results of hinoculus in the SIT experiment, however, 42.1% workers are abnormal. According to the broad linear model, there are six influencing factors (daily mean time to video, distance between eye and displayer, the frequency of rest, whether to use protective products when they feel unwell of their eyes, the type of dis player and daily time watching TV.) have significant influence on vision, having statistical significance. At the same time, there are also six influencing factors (whether have a rest regularly,sex, the situation of diaphaneity for cornea, the shape of pupil, family history and whether to use protective products when they feel unwell of their eyes.) have significant influence on the results of BUT experiment,having statistical significance. However, there are seven influencing factors (the type of computer, sex, the shape of pupil, the situation of diaphaneity for cornea, the angle between displayer and workers' sight, the type of displayer and the height of operating floor.) have significant influence on the results of SIT experiment,having statistical significance.

CONCLUSIONSThe health-situation of IT industry video operation workers' eye is not optimistic, most of workers are lack of protection awareness; we need to strengthen propaganda and education according to its influencing factors and to improve the level of medical control and prevention for eye diseases in relevant industries.

Adult ; China ; epidemiology ; Eye Diseases ; epidemiology ; Female ; Humans ; Informatics ; Male ; Middle Aged ; Occupational Diseases ; epidemiology ; Prevalence ; Surveys and Questionnaires ; Young Adult

OBJECTIVETo analyze the risk factors for dry eye syndrome in visual display terminal (VDT) workers and to provide a scientific basis for protecting the eye health of VDT workers.

METHODSQuestionnaire survey, Schirmer I test, tear break-up time test, and workshop microenvironment evaluation were performed in 185 VDT workers. Multivariate logistic regression analysis was performed to determine the risk factors for dry eye syndrome in VDT workers after adjustment for confounding factors.

RESULTSIn the logistic regression model, the regression coefficients of daily mean time of exposure to screen, daily mean time of watching TV, parallel screen-eye angle, upward screen-eye angle, eye-screen distance of less than 20 cm, irregular breaks during screen-exposed work, age, and female gender on the results of Schirmer I test were 0.153, 0.548, 0.400, 0.796, 0.234, 0.516, 0.559, and -0.685, respectively; the regression coefficients of daily mean time of exposure to screen, parallel screen-eye angle, upward screen-eye angle, age, working years, and female gender on tear break-up time were 0.021, 0.625, 2.652, 0.749, 0.403, and 1.481, respectively.

CONCLUSIONDaily mean time of exposure to screen, daily mean time of watching TV, parallel screen-eye angle, upward screen-eye angle, eye-screen distance of less than 20 cm, irregular breaks during screen-exposed work, age, and working years are risk factors for dry eye syndrome in VDT workers.

Adult ; Dry Eye Syndromes ; epidemiology ; Female ; Humans ; Logistic Models ; Male ; Occupational Diseases ; epidemiology ; Risk Factors ; Surveys and Questionnaires

Angiostrongyliasis, caused by Angiostrongylus cantonensis infection, is a food-borne parasitic disease. Its larvae evoke eosinophilic inflammation in the central nervous system, but can also cause pathological changes in the eyes. Among ocular angiostrongyliasis cases, the incidence of optic neuritis is low and only few sporadic reports exist. Some patients with optic neuritis developed obvious hypopsia or even vision loss, which would seriously influence the quality of life of patients. Prompt treatment of optic neuritis caused by A. cantonensis is the key factor for minimizing the incidence of serious complications of this disease. In this review, we first provide a comprehensive overview of ocular angiostrongyliasis, and then focus on the clinical features of optic neuritis caused by A. cantonensis.
Angiostrongylus cantonensis/*isolation & purification ; Animals ; Asia/epidemiology ; Eye Diseases/*epidemiology/*parasitology/pathology ; Humans ; Incidence ; Optic Neuritis/*epidemiology/*parasitology/pathology ; Strongylida Infections/*epidemiology/*parasitology/pathology