Glossary

 

A  B  C  E  G  H  I  L  M  N  O  P  R  S  T  V  W

 

A

Aim
A general statement of what is intended to be achieved
AC-IOL Anterior chamber intraocular lens
Aphakia Without a lens
APOC Africa Programme for Onchocerciasis Control
Assessment A collection of all information on a certain subject, including an opinion on its status
Avoidable blindness Blindness which could reasonably be prevented or cured within the limits of resources likely to be made available

B

Baseline data Measurements of the situation at the beginning of an intervention
Used for planning and to measure progress after implementation of the intervention
Blindness (WHO definition) visual acuity of less than 3/60 (or equivalent) in the better eye with best correction, or visual field in each eye restricted to less than 10 degrees from fixation

C

CDTI worker Community directed treatment with ivermectin worker
CO Corneal opacity (simplified grading of trachoma)
Cochrane Eyes and Vision Group An international network of individuals working to prepare, maintain and promote access to systematic reviews of interventions to treat or prevent eye diseases or visual impairment
CSC Cataract Surgical Coverage: the proportion of people (or eyes) with ‘operable’ cataract who have already received surgery at a certain point in time
CSR

Cataract Surgical Rate: the total number of cataract operations performed per year per million population

E

ECCE Extracapsular cataract extraction
Efficiency A measure comparing achievement with the efforts andresources expended
EHSA Eye Health Service Area
Evaluation The overall analysis of project achievements at intervals

G

Gantt chart Detailed graph of the start and end dates of various activities under a plan

H

HRD Human resources development: all activities aimed to improve people’s abilities to achieve defined objectives and targets

I

IAPB International Agency for the Prevention of Blindness
ICCE Intracapsular cataract extraction
IEC Information, education and communication
Impact The overall long-term effect of a programme on health and general socioeconomic situation
Incidence The number of new cases with a defined characteristic occurring in a defined area in one year
IOL Intraocular lens

L

LFA

Logical Framework Approach: a systematic approach to analyse the current situation, formulate objectives in a logical hierarchy, identify potential risks, establish how outputs and outcomes might best be monitored and evaluated, present a summary of the project in a standard format, and monitor and review the action plan during implementation


M

Monitoring Day-to-day assessment of project activities and progress

N

NGDO Nongovernmental development organisation
NGO Nongovernmental organisation

O

Objectives A measurable and time-bound statement of what has to be achieved, e.g. 10 refractionists trained within 2 years
OEPA Onchocerciasis Elimination Programme in the Americas
Outcome

General: the results of an intervention programme
More specifically: visual acuity or visual function after cataract surgery

Outlay The total costs of an intervention strategy
Output The total amount of work done under an intervention strategy,
e.g. number of cataract operations, trichiasis operations done

P

PEC Primary eye care
PHC Primary health care
PC-IOL Posterior chamber intraocular lens
Practical Student activity, e.g. learning a skill or group work
Prevalence The number of cases of a clearly-defined condition in a defined area at a defined point in time

R

RACSS Rapid Assessment of Cataract Surgical Services
Resources (a) Any source of information from which students are able to learn, e.g. library, teaching materials, human resources (other students, teachers, etc.). All these are referred to as “learning resources”
(b) Funding, staffing, equipment, anything required to accomplish one's goals, e.g. conduct a training course, upgrade a health care facility, etc.
ROP Retinopathy of prematurity

S

SAFE A strategy adopted by WHO for the control of trachoma: Surgery; Antibiotics; Facial cleanliness; Environmental change
Seasonal trend Variations in a certain characteristic by season
SICS Small incision cataract surgery
Simulation Similar to a case study
Situation Analysis Assessment of all aspects of the present status of a health programme: its needs, the current output, unmet needs, constraints, available resources, costs, barriers, etc.
Social marketing A process of generating demand for health-care services from the community from those who need health interventions but are not seeking them
Survey Systematic examination of a few individuals from a defined population in order to know more about the entire population

T

Target Steps or markers on the way to achieve an objective
TF Trachoma follicular (simplified grading of trachoma)
TI Trachoma infectious (simplified grading of trachoma)
Trichiasis One or more eyelashes rubbing on the globe of the eye
TS Trachoma scarring (simplified grading of trachoma)
TT Trachoma trichiasis (simplified grading of trachoma)

 


V

VA<3/60

VA<3/60 A person or eye that cannot see a standardized character at 3 metres distance, what a person or eye with normal vision can see at 60 metres distance. Equivalent systems exist using other notations, such as feet (VA<20/400), decimal system (0.05) and the logMar system


W

WHO World Health Organization

 

© World Health Organization and International Agency for the Prevention of Blindness, 2004