TX Vision & Hearing Testing questions
well answered
Refractive error - correct answer ✔✔ a cornea or lens issue causes the eyes to receive and send
different signals to the brain due to not being able to bring light rays into a single focus
What are myopia and hyperopia? - correct answer ✔✔ nearsightedness and farsightedness,
which have to do with a large difference in visual acuity between the right and left eyes. the
focus is off at either far or close distances
what is an astigmatism? - correct answer ✔✔ irregular curvature of the cornea which results in
unequal refraction within the same eye. images looked blurred together
what is strabismus? - correct answer ✔✔ a muscle imbalance between both eyes resulting in
either esotropia (cross-eyed) or exotropia (lazy eyes)
what is amblyopia? - correct answer ✔✔ the eye and brain don't work together causes one eye
to "dim". it is the MOST COMMON vision impairment in children and IMPROVES SIGNIFICANTLY
if caught early
what are s/s of vision problems? - correct answer ✔✔ crossed eyes
red/watery eyes
squinting
covering one eye
turning the head to use one eye
leaning in
, Which distance acuity charts are approved for Texas screenings? - correct answer ✔✔ HOTV and
Sloan Letter
When is the HOTV chart appropriate? - correct answer ✔✔ 4-5yo or children that don't know
the alphabet
Must know/learn concept of matching
When is the Sloan letter chart appropriate? - correct answer ✔✔ Ages 6yo+ and know the
alphabet
A screening area should consist of - correct answer ✔✔ -a quiet area
-room at least 2ft longer than screening chart requirements (so min. 12-22ft)
-uncluttered, nonpatterned wall for chart mounting
normal lighting without shadows or glares on chart
What supplies do you need for screening? - correct answer ✔✔ -cover cards for revealing one
line at a time or revealing one symbol/letter at a time
-steel measuring tape to measure distance
-masking tape to mark where child stands
-footprints to mark where the child should stance
-occluders to completely block vision in one eye
-plain or brown butcher paper to provide uncluttered background by chart
-1+ gooseneck lamps
-DHS screening forms
-visual acuity charts
T/F the child can use their hand as the occluder if you don't have one - correct answer ✔✔ False
well answered
Refractive error - correct answer ✔✔ a cornea or lens issue causes the eyes to receive and send
different signals to the brain due to not being able to bring light rays into a single focus
What are myopia and hyperopia? - correct answer ✔✔ nearsightedness and farsightedness,
which have to do with a large difference in visual acuity between the right and left eyes. the
focus is off at either far or close distances
what is an astigmatism? - correct answer ✔✔ irregular curvature of the cornea which results in
unequal refraction within the same eye. images looked blurred together
what is strabismus? - correct answer ✔✔ a muscle imbalance between both eyes resulting in
either esotropia (cross-eyed) or exotropia (lazy eyes)
what is amblyopia? - correct answer ✔✔ the eye and brain don't work together causes one eye
to "dim". it is the MOST COMMON vision impairment in children and IMPROVES SIGNIFICANTLY
if caught early
what are s/s of vision problems? - correct answer ✔✔ crossed eyes
red/watery eyes
squinting
covering one eye
turning the head to use one eye
leaning in
, Which distance acuity charts are approved for Texas screenings? - correct answer ✔✔ HOTV and
Sloan Letter
When is the HOTV chart appropriate? - correct answer ✔✔ 4-5yo or children that don't know
the alphabet
Must know/learn concept of matching
When is the Sloan letter chart appropriate? - correct answer ✔✔ Ages 6yo+ and know the
alphabet
A screening area should consist of - correct answer ✔✔ -a quiet area
-room at least 2ft longer than screening chart requirements (so min. 12-22ft)
-uncluttered, nonpatterned wall for chart mounting
normal lighting without shadows or glares on chart
What supplies do you need for screening? - correct answer ✔✔ -cover cards for revealing one
line at a time or revealing one symbol/letter at a time
-steel measuring tape to measure distance
-masking tape to mark where child stands
-footprints to mark where the child should stance
-occluders to completely block vision in one eye
-plain or brown butcher paper to provide uncluttered background by chart
-1+ gooseneck lamps
-DHS screening forms
-visual acuity charts
T/F the child can use their hand as the occluder if you don't have one - correct answer ✔✔ False
