Itp 18.03.16 trachoma - problem based learning, dr.k.n.jha

1. Proposed Lesson Plan
Name of the teacher: Prof K N Jha Class: VI & VII Semester MBBS
Topic: Trachoma Date & Time: 18-03-2016 : 2-4 pm
Number of students: 140 Venue: 2nd floor lecture hall
Departments: Ophthalmology (In charge),Community Medicine – Dr. SACHIN, and
Microbiology Dr. PRAVIN
Specific Learning Objectives (SLO)
At the end of class, students will be able to
a. Know the cause of foreign body sensation in the eyes
b. Cause of upper eyelid entropion, trichiasis, and corneal opacities
c. Pathogenesis and clinical features of trachoma
d. Laboratory diagnosis of trachoma
e. Describe the epidemiology of trachoma in terms of distribution, determinants, mode of spread
and its Incubation period.
f. Enlist the various preventable causes of corneal blindness in India.
g. Mention the WHO simplified grading system for community assessment of trachoma.
h. Describe the public health intervention or strategy advocated by WHO at community level for
elimination of blinding trachoma.
i. Surgical treatment of trichiasis and upper eyelid entropion
S.No Content Method & Media Duration
(Min)
1 Set induction, Explaining the strategy for task Oral instruction 10
2
Student group work (4 groups)
Books (Parson's Diseases of the
Eye, Park Textbook of PSM &
Text book of Microbiology)
25
3 Final touch to group presentation -Do- 5
4 Group presentation
Group 1: Presentation followed by discussion
(Characterisation of entropion and corneal Opacity
, trachoma – clinical features & management)
Plenary
10
Group 2: Presentation followed by discussion
(Epidemiology of corneal opacities and Trachoma
and WHO classification of Trachoma)
Plenary
10
Break 5
Group 3: Presentation followed by discussion
( Microbiological work-up of a case of red eye)
Plenary & LCD
15
5 Questions from the students Verbal interactions 5
6 Summary Verbal interactions 5

2. 7 Feedback Questionnaire 5
Evaluation 5
Attendance 5
TOTAL 120
Case Scenario:
During field visit to a village with poor civic amenities and poor environmental cleanliness in
your neighbourhood an elderly female presented to you with following complaints:
Redness of the eyes off and on for last 5 years
Foreign body sensation both the eyes 1year
Blurring of vision both eyes for last 6 months
On questioning, the patient said there are a number of other people in her village with similar
complaints.
Examination revealed:
Visual acuity Right eye 4/60 not improving with pin hole
Left eye 6/18 not improving with pin hole
Other findings included
Upper eyelids thickened over their tarsal portion
Entropion of both upper eyelids with numerous eyelashes touching cornea
Lacrimation both eyes
There were numerous follicles over the upper tarsal conjunctiva, and the tarsal
conjunctiva was scarred.
There was circumcorneal congestion in her right eye
Both eyes, cornea showed superficial vascularisation ( pannus) in the upper parts.
Right cornea showed nebulomacular opacity. Left cornea had central nebula.
Corneal sensation was normal.

3. REFERENCES :
1. V V R Seshu babu. Review of community medicine. 2nd
edition. Reprinted 2011.
2. 10th
Meeting of Get 2020 report. Making progress towards the global elimination of blinding
trachoma. WHO alliance towards the global elimination of blinding trachoma by 2020. World
Health Organization.n
http://www.who.int/blindness/GET%2010%20REPORT%20FORMATED%20FINAL.pdf
3. Theme of the Issue: Managing corneal blindness – NPCB. India. April- June. 2012
http://npcb.nic.in/writereaddata/mainlinkfile/File285.pdf
4. Trachoma simplified grading card. Prevention of blindness and visual impairment. World health
organization. http://www.who.int/blindness/causes/trachoma_documents/en/
5. Sreejith P S. Community Medicine Simplified. 384-386
6. J. Kishore. NationalHealth Programs of India. 11th
Edition. Content Part I. World Health
Assembly: 51:11. Resolution. Global elimination of blinding trachoma. 498
7. K.Park. 23rd
Edition. Textbook of preventive and social medicine. Surface infections.
Trachoma.