A Comparative Assessment of Near Point of Convergence between Goldsmiths and Normal Population
Abstract:
The
process of jewelry making involves minute visual tasks at closer working distance
for goldsmiths, which demands high visual ability that eventually might result with
receded near point of convergence (NPC). Hence the aim of our study is to compare
the near point of convergence between goldsmiths and normal population. One group
of 72 male experienced goldsmiths and other group of 72 male normal populations
were evaluated. Binocularly the near point of convergence was tested with sharpened
tip of pencil. The patient age ranges between 30 to 60 years with best corrected
visual acuity of 6/6, N6 monocularly without any ocular pathology were included
in both the groups. The other near occupational work was excluded for normal population.
The p-value for subjective comparison of NPC is 0.008 and for the objective comparison
of NPC is 0.0005 which showed a highly statistical significant changes between goldsmiths
and normal population for both subjective and objective comparison. Hence this test
can be used as a clue to suspect whether the goldsmiths having convergence insufficiency
and to decide on referring the patient for further binocular vision assessment and
treatment accordingly.
Keywords:
Goldsmiths, near point of convergence,
sharpened pencil tip.
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