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International Participants El Salvador, Guatemala, Nicaragua. UNESCO Chair in Visual Health and DevelopmentOpt. Anna RiusLic. Astrid VillalobosJanet Leasher, ODMaria CillerosVOSH/UAB, NECO/UES/U. GALILEO/ MINSA/MECDWendy Marsh-Tootle, ODMarcela Frazier, ODPatti Fuhr, OD, PhDBruce Moore, O
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1. Pre/School Vision Screening in Nicaragua A Pilot Project
in cooperation with the
UNESCO Chair in Visual Health and Development
VERAS
(Vision, Education, Achievement, Learning, and Sustainability) project.
2. International ParticipantsEl Salvador, Guatemala, Nicaragua UNESCO Chair in Visual Health and Development
Opt. Anna Rius
Lic. Astrid Villalobos
Janet Leasher, OD
Maria Cilleros
VOSH/UAB, NECO/UES/U. GALILEO/ MINSA/MECD
Wendy Marsh-Tootle, OD
Marcela Frazier, OD
Patti Fuhr, OD, PhD
Bruce Moore, OD
Erik Weissberg, OD
Lic. Natalia Colome
Nelson Rivera, OD
John Gehrig, JD
Miguel Silva, OD
Ing. Sergio Romero
Elise Harb,OD
Kayla Smith
Kimberly ChanKate Moore
Marsha Feist-Moore
Carolina Toledo
Jose Salinas A.
Vilma Chavez de Pop, MD
Milago del C. Meduia
Rosa Elana Alfaro
Samuel Alanso, OD
Jose Salinas Andreade
Juan Carlos Aresti, OD
Rommel Izaquirre, MD
Milton Eugarrios Najlis, MD
Jacqueline Castellon R, MD
Johanna Ramirez Villalobo, MD
3. Central America Belize
Guatemala
Honduras
El Salvador
Nicaragua
Costa Rica
Panama
4. Central America < $2/Day Belize -
Guatemala -37.4%
Honduras – 44.4%
El Salvador – 45%
Costa Rica – 14.3%
Panama – 17.9%
Nicaragua – 94.5% < $2/Day
33%$ < $1/Day
5. Nicaragua Nicaragua (and Haiti)
poorest nations in Western Hemisphere
Population 5 million
1 million in Managua
Literacy rate 66%
800,000 without access to health services
Human Poverty Index - ¼ are fully deprived of decent standard of living (drinkable water, etc)
6. Nicaragua – Visual Health Opticians or optometrists without specialized training = 35 (CR=50)
Opticians or optometrists with university training = 15 (CR=350)
Ophthalmologists with university training = 55, CR = 100
No optometry school
Optometry laws exist only in Panama, Guatemala and Costa Rica UNESCO CHAIR IN VISUAL HEALTH AND DEVELOPMENT
REPORT ON VISUAL HEALTH IN CENTRAL AMERICA
7. VERASVision Education Achievement Learning Sustainability Vision, Educacion, Rendimiento, Aprendizaje y Sostenibilidad Cooperative project
UNESCO Chair in Visual Health and Development
VOSH
MINSA and MECD
Guatemala, El Salvador, Nicaragua
Universities in Spain, El Salvador, Guatemala, & US
NGO - FOR Nicaraguan Health
Planning meeting in El Salvador September 2005
8. Role of Volunteer Optometric Service to Humanity (VOSH) Enlist support of Nicaraguan Minister of Health and Minister of Education
Expert advisors to help develop vision screening and examination protocols
Help to train local persons to follow the protocol
Ministers identify screeners
Examine and treat the children in Nicaragua
9. VERAS September 2005
Planning Meeting
Protocols developed
January 2006 Summit
Introduced protocols
Trained and certified
participants from
El Salvador
Guatemala
Nicaragua
“superscreeners”
11. VERAS in Central America Goals
Detect, diagnose and treat vision problems in preschool and first grade children
Increase awareness of children's vision problems among health care providers, teachers and parents
Design a feasible system that is culturally appropriate and sustainable in the local community
12. VERAS Pilot Project in Nica Goals:
Test the screening and examination protocols
Training screeners / super-screeners
Initial training of supervisors
Follow-up training
MECD 20 volunteer teachers
MINSA 5 volunteer nurses
On site observation of initial screenings (1000)
13. School-based screening
14. VERAS Screening protocol
Target population preschool and first grade
VERAS visual acuity test 20/40 targets
Screening acuity at 5 feet
15. VERAS Standardization of Vision Screening
Present cards 1-12 at 5 ft
both eyes together (cards 1-4)
right eye alone (cards 5-8)
left eye alone (cards 9-12)
Communication:
teach child to name or match symbols
do not answer for child
Test conditions:
ambient lighting
hold test straight
keep 5 foot string tight
16. Screening Form
17. VERAS Screening criteria
Fail at least 2 symbols in any condition
(eyes together, right eye alone or left eye alone)
Protocol testing:
All children failing and equal number who passed to be examined
18. VERAS Examination Acuities
Test targets from 20/100 to 20/20 size
Monocular
10 feet
19. Examination Acuity Form
20. Pilot Project Goal of Examiner training:
Standardized form
Standardization of Methods
Cycloplegic
Standardized approach to correction of refractive errors in children
21. Examination Cover test
detect strabismus
detects latent strabismus
with prism measure
22. Examination External inspection
determine safety for dilation
detect external eye disease
detect media opacification
23. Examination Cycloplegia
proparacaine
2 drops 1% cyclopentolate
1 drop 1% Tropicamide
45 minute wait
24. Internal Examination
25. Retinoscopy and Rx
26. Treatment Plan Spectacle Treatment
Exact prescription
Retinoscopy
New frames
New lenses
Fabricated in Nicaragua
27. Treatment Plan Surgical Evaluations
Corneal specialist
EOM surgeon
Low vision care not available in community
Coordination of care with local MDs
28. Pilot Study Results 5673 Children Screened!
350 Failed the screening (~6% referral rate)
Examination
365 Children in protocol examined
211 who had passed the screening
154 who had failed the screening
Masked to examiners
29. Pilot Study Results True Positives
Failed the screening and needed glasses = 53
False Positives
Failed the screening and did not need glasses = 101
True Negatives
Passed the screening and did not need glasses = 195
False Negatives
Passed the screening and did need glasses = 16
30. Pilot Study Results
31. Efforts to Decrease False Positive Rate High false positive rate can destroy a screening program
Increase cost
Decrease confidence in screening program
32. Efforts to Decrease False Positive Rate What can we do?
Require re-screening by a supervisor of those who failed screening initially
Or increase training of first screeners
Continue monitoring program for outcome until improvements are documented
33. Pilot Study Results Quality control
Track and compare results per individual screener
Individuals beliefs about medical care may influence referral rates
Teachers appeared more committed to finding children with vision problems
They see the day-to-day problems
Some individuals get better cooperation from pre-schoolers
34. Pilot Study Results Lessons Learned
Our test is inexpensive and well accepted in the community
Process is labor intensive requiring training
Tracking of results
Re-training
Re-testing before examination
Lay people can be excellent screeners
35. Pilot Study Results
Parents were very interested
Teachers are the key
Sustainability occurs when local providers can continue the protocols and the care
36. Vision Screening in NicaraguaAcknowledgements
First VOSH cooperative project with UNESCO Chair in Visual Health and Development
Very productive partnership
Pilot phase completed in 8 months!
Grant from VOSH International
UAB School of Optometry
Department of Veterans Affairs
GoodLite
A&A Optical of Texas
All planning, implementation, and evaluation participants
37. It’s the glasses!
38. It’s the vision!
39. It’s the children!