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  Acronyms and Codes
I K Jalili



Notes on terminologies used

Codes used in family sequence



ACS Anterior Cleavage Syndrome
Acq Acquired
AI Amelogenesis imperfecta
AMD Atrophic macular degeneration
APOC African Programme for Onchocerciasis Control
ARMD Age related macular degeneration
BL Blind/Blindness
Cn Type of cousin marriage eg C1 is first cousin marriage
CACR Congenital amaurosis of cone-rod
CAR Central African Republic
CB Childhood Blindness
cb Coloboma
CC Congenital cataract
CCO Congenital corneal Oedema
CD Cone degenerations/dystrophies
CG Congenital (developmental) glaucoma
CDH Congenital dislocation of the hip
CDK Climatic droplet keratopathy
CHI China
CMV Cytomegalovirus
CNS Central nervous system
co Corneal opacity
cong Congenital
cons Consanguineous
CRD Cone-rod dystrophies
CRDAI Cone-rod dystrophy and amelogenesis imperfecta
CRS Congenital rubella syndrome
CS or cs Convergent squint
CSR Cataract Surgical Rate per million populations
CV Colour vision
dd Deceased
DHSS Department of Health and Social Security
DVM Delayed visual maturation
ED Extra digit
EL Ectopia lentis
EME Established market economies
esot Esotropia
EWCL Extended wear contact lenses
GET Global Elimination of Trachoma
goa Glaucomatous optic atrophy
Gaza Strip The Gaza Strip
HDI Human Development Index
HSK Herpes simplex keratitis
HSU Homocytinurea
IAPB International Agency for the Prevention of Blindness
IDDM Insulin dependant diabetes mellitus
IL Israel
IND India
IOP Intraocular pressure
ITI The International Trachoma Initiative
JMD Juvenile macular degeneration
ksc Kyphoscoliosis
LAC Latin America and the Caribbean
LCA Leber’s congenital amaurosis
MC Microphthalmos
MD Macular degeneration
MEC Middle East Crescent
M/F Male/Female ratio
MR Mental retardation or mentally retarded
M/R Mortality rate
MSN Mentally subnormal/ mental subnormality
NB Night blindness
NGOs Non-governmental organisations
NIB The National Institute for the Blind
NLDO Naso-lacrimal duct obstruction
NLP No Light Perception
oa Optic atrophy
OA Ocular albinism
OAG Open angle glaucoma
Glossary of Acronyms, Definitions and codes
OAI Other Asian countries and islands
OCA Oculocutaneous albinism
OCP Onchocerciasis Control programme
OEOA Onchocerciasis Elimination Program-me for the Americas
O/N Ophthalmia neonatorum
ON Optic nerve
ONH Optic nerve head
OPT The Occupied Palestinian Territories
PBL Prevention of blindness
PCG Primary congenital glaucoma
PHC Primary healthcare
POAG Primary open angle glaucoma
PSE The former socialist market economies
RCD Rod-cone dystrophy
RD Retinal dystrophies
RM Rod monochromatism
Rn/Ln Corneal diameter right and left e.g R10/L9
RNIB The Royal National Institute for the Blind
retinopathy of prematurity Retinopathy of prematurity
RP Retinitis pigmentosa
RPE/rpe Retinal pigment epithelium
rpea Retinal pigment epithelial atrophy
SAFE Surgery, antibiotics therapy, facial cleanliness and environmental improvement.
SJOH St John’s Ophthalmic Hospital, Jerusalem
SLO Scanning laser ophthalmoscope
SNB Stationery night blindness
SNM Subnormal mentation
SSA Sub-Saharan Africa
STD Sexually transmitted disease
SVI Severe visual impairment
SVI/BL Sever visual impairment and blindness
TEM Traditional eye medicine
VI (vi) Visual impairment
U5MR Under 5 mortality rate
UAE United Arab Emirates
UN The United Nations
UNRWA United Nation Relief and Welfare Agency
VA Visual acuity
VC Vernal catarrh
VR Vitreoretinopathy
West Bank The West Bank
WG Whole Globe
WHO World Health Organisation

  Notes on Terminologies used  

1. Unless stated otherwise, when blindness or visual impairment (low vision) is quoted it:

a) Follows the WHO criteria and categories for visual acuities including figures from the USA literature.

b) Indicates the best-corrected acuity in the better eye.
c) Criteria have been converted to those of the WHO criteria, for example when ‘blindness in the USA’ is mentioned in the literature, it will be referred to as SVI/blindness in the dissertation.

2. Total figures for the OPT can also include, in addition to those of the West Bank and Gaza Strip, additional cases from those whose origin is uncertain, i.e can be either from the West Bank, Gaza Strip or other Palestinian communities.

Codes used in sibships sequences
a, Abortion
c, Miscarriage
F, m (lower case) non-affected male or female
F, M (upper case) affected male or female
M, F An affected male of female who is either the prepositor of the patient in question
M, F The affected male or female in question when more than one is affected in the sibship.
n/a Siblings sequence and pedigree information is not available
p Pregnant
s Still birth (followed by f or m if gender is known) e.g sf, sm, indicate a female still birth and a male still birth
U Uncertain gender
[ ] Twins such as [mm], [ff], [mf]
- Minus sign following f, F, m, M indicate deceased sibling.

, * ~ ’ To denote specific information data in the preceding symbol which is explained in the text
{ } To denote specific information contained inside the bracket
? ’?’ preceding a symbol indicates uncertainty of the information that follows eg ‘?-‘ means possibly dead, ?m possibly male.
mfMcFf (underlining): Not in sequence, when several symbols are underlined

Abbreviations Used Referring to Types of Consanguinity

Cn Degree of cousin marriage eg C1 is first cousin and so on.
C1PM Double first cousin (if both paternal and maternal)
NR No relation
SV/ST Same village/same town or locality
Cn1h Cousin once removed e.g C1h is first cousin once removed.
P  Paternal
M Maternal


Ismail K Jalili 2000-2016