An Assessment of Diabetic Retinopathy and Diabetes Management System in Nepal.

BACKGROUND: Visual damage due to diabetic retinopathy is a major concern which can be reduced through appropriate coordination and cooperation between the diabetes management services and diabetic retinopathy services. The study assessed the existence, availability and accessibility of health care services for diabetes mellitus and diabetic retinopathy in Nepal. METHODS: The study was carried out from 1 April to 24 June 2015. The tool for assessment of diabetic retinopathy and diabetes management systems developed by the World Health Organization was used for the assessment of major stakeholders like endocrinologists, ophthalmologists, ophthalmic assistants, nurses involved in diabetes care, patients and human resources from Ministry of Health and Population and international non-governmental organizations dealing with eye care services in Nepal. RESULTS: Thirty-seven key stakeholders were selected for the study. Six out of fifteen ophthalmologists were unaware about the prioritization of diabetes as national health concern. The main function of diabetes association included patient education and awareness 18(48.6%), clinician education and awareness 16(43.2%). Thirteen professionals (35.1%) said that the patients were not found to be aware about diabetic patients' organizations. The information to community is provided occasionally and only through national-level media. All forms of diabetes care were funded out-of-pocket by the patients themselves. CONCLUSIONS: Coordination should be strengthened for an effective and holistic management of diabetes mellitus making diabetes care and diabetic retinopathy services more accessible. Diabetes mellitus and its complications are becoming a public health threat in Nepal.

Prevalence of blindness and visual impairment and its causes among people aged 50 years and above in Karnali Zone, Nepal.

OBJECTIVE: To estimate the prevalence of blindness and visual impairment and its causes among those aged 50 years and above in Karnali Zone. MATERIALS AND METHODS: Stratified cluster sampling method was used. Twenty four clusters of 50 people aged 50 years and above were selected for the study. Visual acuity was recorded with simplified vision testing card with one optotype "E" of size 60 on one side and size 18 on the other side. Examination by ophthalmologist under mydriasis was done for those with a pinhole visual acuity of less than 6/18. RESULTS: Of 1200 enumerated persons 1,174 were examined (97.8% response rate). The prevalence of blindness (VA less than 3/60 in better eye) with available correction was 3.4% (40), (95% CI=2.36-4.44); 2.3% (15) for male and 4.8% (25) for female; with best correction it was 1.6% (19), (95% CI=0.9-2.34), 1.1% (7) for male and 2.3% (12) for female. Untreated cataract was the cause of blindness in 67.5%. Severe visual impairment (less than 6/60 - 3/60 BCVA in better eye) was seen in 2.1% (1.1% male and 3.4% female). Refractive error was the cause of visual impairment in 36.8% and untreated cataract in 58.8%. CONCLUSION: Cataract and refractive error are the commonest cause of blindness and visual impairment. Females are 3 times more prone to blindness than their male counterpart. Accessible and equitable services are necessary for blindness prevention.

Prevalence and correction of near vision impairment at Kaski, Nepal.

INTRODUCTION: Presbyopia is an important cause of avoidable visual disability. OBJECTIVE: To estimate the prevalence of near vision impairment and spectacle coverage among middle and older-aged adults in rural Nepal. MATERIALS AND METHODS: The surveys was carried out among the people of age 35 and over in randomly-selected cluster samples in rural settings of Kaski district of western Nepal, Near visual acuity, with and without presenting near correction, was measured at 40 cm using a LogMAR near vision tumbling E chart under ambient indoor lighting. Subjects with uncorrected binocular distance vision of 20/40 or worse were refracted and those with near vision of 20/40 or worse tested with plus sphere to obtain the best-corrected binocular near visual acuity. RESULTS: A total of 2,360 persons aged 35 years and over were enumerated and 2,156 (91.3%) were examined. The age- and gender-standardized prevalence of uncorrected near visual impairment (vision of 20/40 or worse) in study population was found to be 66.1 %. Near vision could not be corrected (>20/40) even after distance and near vision correction in 6.4 % . Using the multiple logistic regression models, uncorrected visual impairment was associated with an older age (odds ratio [OR] = 1.13, P less than 0.001) and a lower educational level (OR = 1.11, P = 0.01) was less associated with female gender (OR = 0.72, P = 0.038). Over 90 % of people with near visual impairment did not have spectacles. CONCLUSION: The prevalence of presbyopia appears to be higher with an earlier onset and over 90 % of people in need of near correction do not have spectacles in this setting.

Profile of pediatric ocular trauma in mid western hilly region of Nepal.

INTRODUCTION: Majority of blinding ocular injuries can be prevented. OBJECTIVE: To describe the epidemiology of ocular trauma in children. MATERIAL AND METHODS: A retrospective review of medical records of the patients aged below 16 years who attended the Himalaya Eye Hospital, Pokhara with history of ocular injury. RESULTS: Of 6,829 pediatric patients, 554 (8.1 %) had ocular trauma. The ocular trauma was more prevalent (38.1 %) in the age group of 5 - 10 years followed by 10-15 years (16.6 %). The boys (62 % vs 38 %) were more prone to ocular trauma than girls (RR = 1.7 and 95 % CI = 1.41 - 2.02). Of 554 ocular injuries, 32 (5.8 %) were open globe injuries. Sub-conjunctival hemorrhage was the commonest presenting finding in 96 (17.3 %) subjects. Forty-seven (8.5 %) of them attended the hospital after 15 days of injury. Home was the most common place for trauma (n =204, 36.8%), followed by playground (n = 140, 25.3 %). CONCLUSION: Children between the ages of 5-10 years are most vulnerable to ocular trauma.Home is the commonest place for ocular injury followed by playground. By adopting some common safety factors or by reducing the ocular injury risks factor, ocular trauma can be greatly reduced.

Blindness prevalence and cataract surgical coverage in Lumbini Zone and Chetwan District of Nepal.

AIM: To determine the prevalence of blindness, visual impairment and the cataract surgical coverage for people aged 50 years and older in the Lumbini Zone and the Chitwan District (Narayani Zone) of Nepal. METHODS: A population-based cross-sectional study in 2006 selected subjects aged 50 years and older through a random multistage cluster sampling and door-to-door enumeration. Ophthalmic examination included visual-acuity assessment and refraction, and anterior and posterior segment examination of the eyes carried out by a trained ophthalmologist and two ophthalmic assistants at centralised locations. RESULTS: The survey examined 5138 of 5196 persons enumerated (response rate of 86.8%). The mean age of the subjects was 61 (SD 9.2) years, and 2701 (52.6%) subjects were women. The age-sex-adjusted prevalence of blindness (best presenting vision <6/60) and visual impairment (better-eye presenting visual acuity of <6/18 to > or = 6/60) were 4.6% (95% CI 3.4 to 5.8) and 18.9% (95% CI 16.4 to 21.4), respectively. Blindness was significantly lower in the hill (3.3%) compared with the plain (5.8%) regions (OR 0.6; 95% CI 0.4 to 0.9). The primary causes for blind eyes were cataract (n = 228, 48.1%), refractive error (n = 149, 31.4%), retinal disorders (n = 19, 4.0%) and corneal opacity (n = 18, 3.8%). The overall cataract surgical coverage was 66.6%. Cataract surgical coverage was not significantly associated with age, sex, literacy or District. CONCLUSION: Although the prevalence of blindness and visual impairment is lower than 10 years ago, particularly among women, correctable blindness due to cataract and refractive error (79.5% of blind people) remains a significant population health problem in Lumbini Zone and Chitwan District.

Prevalence of blindness and cataract surgery in Gandaki Zone, Nepal.

BACKGROUND/AIM: Himalaya Eye Hospital (HEH), established in 1993, is rendering eye care services in the Gandaki and Dhaulagiri zones. The hospital has extensive community outreach activities along with services for outpatients, emergencies, and subspecialties such as vitreoretinal, paediatric, and low vision. The operation theatre is well equipped to match the surgical needs including phaco surgery for cataract. The hospital has performed more than 14 000 cataract surgeries and 250 000 treatment services during this period. The aim of this study was to estimate the prevalence of blindness, visual impairment, and cataract surgical coverage among the older adult population of three districts of Gandaki Zone, where 80% of the hospital's service recipients reside. METHODS: People aged 45 years and older were enrolled in the study using a stratified cluster design. Subjects in 25 randomly selected clusters from the listed 806 were recruited through door to door visits. Each recruited subject had visual acuity (VA) and clinical examination conducted by an ophthalmologist. The survey was preceded by pre-pilot and pilot studies to refine the operational method. To assess quality assurance the interobserver variation in VA measurement was also carried out in five different clusters. RESULTS: Out of 5863 selected subjects 85.3% were examined. Blindness defined as presenting VA <6/60 in both eyes was found in 2.6% (95% confidence interval (CI): 2.2 to 3.9), whereas 16.8% individuals examined had vision <6/19 in one or both eyes. Cataract was the principal cause of blindness in 60.5%, and refractive error was the dominant cause of vision impairment (<6/19) 83.3%. Cataract surgical coverage was 59.5% among the cataract blind and associated with younger age, literacy, and male sex. CONCLUSION: The finding suggests a positive impact of the HEH programme on the prevalence of blindness and cataract surgical services in the survey area. Strategies to further improve access and utilisation of facilities and increase cataract surgical coverage need to be developed.

Barriers to up take cataract surgery in Gandaki Zone, Nepal.

OBJECTIVE: Cataract though avoidable remains as leading cause of blindness in Nepal. Though, Himalaya Eye Hospital rendering high quality surgical service through its base hospital and out reach service in Gandaki Zone having cataract surgical rate is below 1500 per million. Therefore, it is mater of interest to investigate the reason and the finding would be helpful to plan the future cataract programme to CSR to desirable level, if we know the reason(s) that forced them living as blind in community and not seeking available surgical services. METHOD: All person with cataract affecting their visual acuity to <6/60 (corrected) in either eye found in stratified cluster design sampling were enrolled in the study. They were interviewed with structured questionnaire investigating their knowledge and attitude of their visual impairment and barriers for not seeking cataract surgical service to date. RESULTS: A total of 303 eligible subjects were enrolled in the study. Out of them 57.8% of people knew about the cataract and they also think their vision impairment is due to cataract. But 56.11% of people were not aware their vision will improve. Surgical camp attendant or operated patients were found to be effective media to spread the message that the cataract is curable. Among the barriers: fear for surgery 31.1%, lack of attendant and geographical distance 32.8%, financial 24.1% and other clinical reason were found to be 12% as a reason for not seeking available surgical service. CONCLUSION: The cataract service marketing, eye health education disseminating the information on cataract and its curability is not found to be adequate. Therefore, the future cataract programme should give more concentration on creating awareness on cataract and subsidizing the available surgical service and service need to be brought to more proximity for the needy poor people.

Visual outcome of vitrectomy in seasonal hyperacute pan uveitis.

INTRODUCTION: Seasonal Hyper Acute Panuveitis (SHAPU) is a sight threatening condition often affecting children. Its management as yet is a challenge in ophthalmic practice. Most of the eyes even after treatment end up in pthisis bulbi. MATERIALS AND METHODS: A retrospective hospital based analysis of 18 patients with SHAPU managed with vitrectomy at Himalaya Eye Hospital (HEH) Pokhara over a period of two years was carried out. RESULTS: Out of 18 patients 10 were males. Majority of them were below the age of 15 years. Best corrected visual acuity (BCVA) at presentation was less then 3/60 in 72% of them. BCVA was better then 6/60 in 7 (50%) out of 14 patients, who underwent vitrectomy. CONCLUSION: Vitrectomy is a useful procedure in management of SHAPU.

Acceptability of aphakic correction. Results from Karnali eye camps in Nepal.

Of 235 aphakic patients followed for 1-10 years in Karnali, Nepal, 23% were wearing aphakic spectacles in good condition, 25% had lost or broken their spectacles, 31% were wearing scratched or repaired spectacles, 5% never received spectacles and 16% were dissatisfied, of which 84% still had good phakic vision in the fellow eye. Of 303 aphakic eyes, 89% had a visual acuity of 6/60 or better with +10 spherical correction and 7.3% (22 eyes) were blind (V/A less than 3/60); of which the major causes were pre-existing posterior segment disease unrelated to the cataract operation.