!)! CAUSES OF BLINDNESS TABLE 6-5. SHORT FORM OF CATEGORIES OF OCULAR DISORDER (COD-S) FOR %+#MAJOR DIAGNOSES OF CAUSES OF BLINDNESS IN NEPAL (NBS %+,%- Code Description COD ,,,, '$&.# '%".# '%&.# '++.# *$&.# *%"//*++. ($&.(%"/(+,# "%*/"++# &%*/&++# ,%$/,++# %$%.#%&$%.#&&$%.#,,$%# %$!.#%&$!.&&$!.,,$!.++$!# %$'.#%&$'.#&&$'.,,$'.++$'# %$*.+$".#%%$".#%&$*.&&$*.,,$*# +$+# %$$&/%$++.# %%$&.# %%$+.# %%%"/%!$+. %!%"/%!++# %'$&/%'++# %*$&.#%*$+.#%*%"/%*++# %($&.#%(%"/%(++# %"$&.#%"%"/%"++# %&%&/%&++# %$&.#%$+.#%%".#%%&.#%++# %%*.#%%(.+%*.+%(.#%&%*.#%&%(.#&&%*. &&%(.,,%*.,,%(.++%*.++%(# %%$/%%'.# '%$.# '%!.# *%$.# *%!.# (%$. (%!.# +%$.# +%!.# %%%$.# %!%$.# %!%!. %*%$.#%(%$.#%(%%.# %"%%.# %&%$/%&%'. &&%$/&&%'.,,%$/,,%'.#++%$/++%'# %$,.#%"$,.#%&$,.#&&$,.,,$,.++$,# +%&.# +++.# &&$&.# &&$+.# &&%".# &&%&. &&++.,,$&.,,$+.,,%".,,%&.,,++# '&%.#'&*.#'&".#'&+.#%'&%.#%'&".#%(&%. %(&,.#%"&%.#%"&'.#%"&".#++&%.#++&*# ++$&.++$+.++%".++%&.++++# Unimpaired, no ocular disorder Cataract After-cataract Aphakia Couching Trachoma Measles Smallpox Infection Vitreous opacity Retinal disease Glaucomatous optic atrophy Other optic atrophy Refractive error Amblyopia Phthisis, undetermined etiology Corneal scars, miscellaneous, and other etiologies Iatrogenesis 0 1 2 3 4 5 6 7 8 9 10 11 %! %' %* %( %" %& %, && +& +, ++ Trauma Nutritional disorder Other causes Multiple causes Undetermined causes curable or nonpreventable form of blindness (e.g., retinal disease, which is considered beyond the scope of the Nepal Blindness Programme as a public health program) we assigned that person the preventable or curable disease as the summary cause of blind- ness. This rule was adopted because we reasoned that blindness was avoidable if cataract blindness was cured or if preventable blindness were prevented, thus removing the person from the WHO category of "blind." As a final example, if a person had different diagnoses (COD- S) in each eye and one was curable and the other preventable, we assigned the person the diagnosis (COD-8) which was curable (e.g., cataract) rather than preventable (e.g., trachoma) reasoning that sight could be restored by an operation while the ini-
