With the support of the World Vision, in June 2004, the district Chi Linh Health Centre (Hai Duong province) co-operated with Institute of Ophthalmology to survey on blindness and some eye diseases in 3,370 people. Objectives: identify the situation of blindness and some eye diseases in Chi Linh in the year 2004; identify the trachoma prevalence after 4 years implementing the project of trachoma control in Chi Linh. Methods: cross sectional study; Target population: all people. Results of survey has shown the prevalences of blindness and some eye diseases are so high compared with the figures of country survey, the leading causes of blindness are cataract, glaucoma, corneal opacity and pterigium. Conclusion: Thank to project of trachoma control supported by WV conducted in Chi Linh from 1999, the prevalence of active trachoma now has dropped to level under the criteria of WHO on active trachoma elimination. However, the rate of trichiasis is very far from criteria of WHO. Results of survey has shown also the serious situation of blindness. That is the big challenge for health workers and ophthalmologists in Hai Duong province and Chi Linh district in order to reduce the blindness prevalence in the next years.
Eye Diseases, Blindness, Epidemiology

OBJECTIVE: To describe the distribution and clinical characteristics of endogenous uveitis among patients in a Philippine eye clinic. METHODS: The demographic and clinical data of 103 uveitis patients consulting at the Asian Eye Institute over an 18-month period were analyzed and compared with a previous report. RESULTS: The mean age at consultation was 43 +/- 17 years (range 5 to 83). The maleto-female ratio was 1:1.3. The racial distribution consisted of Malay (77 %), Chinese (22%), and Indian (1%). Forty-one patients (40%) presented with anterior uveitis, 15 (15%) with intermediate uveitis, 19 (18 %) with posterior uveitis, and 28 (27%) with panuveitis. The most frequent diagnoses were idiopathic anterior uveitis (24 %), pars planitis (14 %), multifocal choroiditis and panuveitis (9 %), Vogt-Koyanagi-Harada syndrome (9 %), and Behcets disease (8%). Long-term systemic therapy was needed for control of uveitis in 66 (64%) patients. Twenty patients (20 %) developed sight-threatening ocular complications. Twelve patients (12%) with panuveitis became bilaterally blind. CONCLUSIONS: The patterns of uveitis in the Philippines have markedly changed over the past 2 decades. Significant rates of ocular complications and blindness were found in this series, particularly among patients with panuveitis. These patients should be treated aggressively with corticosteroids and long-term immunosuppressive therapy.
Human ; UVEITIS ; EYE DISEASES ; EPIDEMIOLOGY ;

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

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

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*

This study was undertaken to evaluate the clinical features of a cohort of Behcet's disease (BD) followed up from January 1997 to July 2001 in Yongdong districts in Korea, and to compare the results with the literature. Overall features of clinical manifestations were similar to those described in the literature. However, the frequency of gastrointestinal (GI) ulcerations was much higher than those of other Korean studies. The Korean studies including ours revealed a lower frequency of vascular lesions and epididymitis compared with studies of other countries. The most common site and pattern of inflammatory arthritis were knees and monoarticular involvement, respectively. In addition, in most patients, the ocular lesions involved the posterior uveal tract, and the terminal ileum and cecum were the most common sites of GI involvement. Patients with ocular lesions or GI lesions showed a good prognosis during the follow-up. The HLA-B51 antigen was positive in 50.7% of patients, and it was more commonly found in patients with a familial BD.
Adult ; Age Factors ; Arthritis/*epidemiology ; Behcet Syndrome/*epidemiology ; Cohort Studies ; Eye Diseases/epidemiology ; Female ; Follow-Up Studies ; Gastrointestinal Diseases/epidemiology ; Humans ; Korea ; Male ; Middle Aged ; Sex Factors

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

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

This survey comparing the primary causes of eye disease and visual impairment between rural and urban areas was conducted from the beginning of February through May of 1989. The outcome of that research on 686 residents (1372 eyes) of Buan-Kun, Chunbuk, and 997 residents (1994 eyes) of Dobong-Ku, Seoul, is as follows: 1. Of the basic ocular affections, pterygium was the most prevalent in Baun-Kun with 178 eyes (13.0%), while allergic and chronic conjunctivitis were in the majority in Dobong-Ku with 170 eyes (8.5%). 2. In causes of visual impairment, refractive error showed to be the main one in both Buan-Kun with 135 eyes (9.8%) and Dobong-Ku with 132 eyes (6.6%). 3. In rate of blindness, Buan-Kun had 7.0% monocular blindness and 3.2% of binocular blindness, while 4.1% of monocular blindness and 1.7% of binocular blindness were found in Dobong-Ku. 4. In causes of blindness, cataract (51.1%) was followed by macular degeneration (17.4%), corneal opacity (13.0%), and vascular retinopathy (9.8%) in Buan-Kun, while cataract (56.0%), macular degeneration (6.7%), corneal opacity (6.7%), and phthisis (6.7%) were recorded in that order in Dobong-Ku.
Adolescent ; Adult ; Aged ; Blindness/epidemiology ; Child ; Child, Preschool ; Eye Diseases/*epidemiology ; Female ; Humans ; Infant ; Infant, Newborn ; Korea/epidemiology ; Male ; Middle Aged ; Random Allocation ; Vision Disorders/*epidemiology

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