Slit-lamp bio-microscopy showed
the cornea to be clear, excluding a
small old traumatic scar in the
inferior right cornea. The bulbar
conjunctiva was very quiet and no
notable redness present. The
anterior angle was 0.3 using the
Van Herrick technique while
gonioscopy showed the angle to be
open with the Schwalbe’s line,
Schlemm’s canal and all of trabecula
network seen.
Ophthalmoscopy showed the maculas
to be healthy however the cup/disc
ratios were 0.8 in the right and 0.7 in
the left with a depth of 1 dioptre. The
neural retina rims exhibited thinning
and the ISNT sign was disrupted.
Intra-ocular pressures were 12 mmHg
in the right eye and 14 mmHg in the
left eye measured by AO Non contact
Tonometer at 1.00 p.m.
Visual fields exhibited superior
arcuate defects in both eyes close to
the fixation and relatively deep.
The patient was referred to an
ophthalmologist for confirmation of
diagnosis of normal tension glaucoma
and to initiate medical treatment.