NAO FINAL EXAM STUDY GUIDE
2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Reflex tears - ANSWER ✔ Produced by lacrimal glands & are caused by
stimulus such as coughing, sneezing, strong smells & emotions
2. Layers of tear film (outer-innermost) - ANSWER ✔ Lipid, aqueous, mucin
3. Tear lake, tear prism, tear meniscus - ANSWER ✔ Collection of the thin
film of tears on the lower lid margin
4. Ectropia - ANSWER ✔ Eyelids turn outward
5. Entropion - ANSWER ✔ Eyelids turn inward
6. Conjunctiva - ANSWER ✔ Mucous membrane lining lids & globe
7. Goblet cells - ANSWER ✔ produce mucus
,8. Conjunctivitis - ANSWER ✔ inflammation of the conjunctiva
9. First tunic (outer tunic) - ANSWER ✔ Sclera, cornea, limbus
10.2nd tunic (middle tunic) - ANSWER ✔ Sclera-retina (iris, ciliary body,
choroid)
11.3rd tunic (inner tunic) - ANSWER ✔ Retina
12.The correct transposed RX for -1.00-.50x37 is? - ANSWER ✔ -1.50 + 0.50
x 127
13.The correct transposition for +2.00 -2.00 x 060 is? - ANSWER ✔ Plano
+2.00 x 150
14.An uncut lens must be at least _______ mm in diameter to allow the edging
of a 54 mm round lens decentered 3 mm in: - ANSWER ✔ 60 mm
15.A +3.00 sphere lens has a front base curve of +6.25. What is the back
surface curve? - ANSWER ✔ -3.25
16.A -2.00 -1.00 x 045 lens has a front base curve of +6.25. What are the back
surface curves? - ANSWER ✔ -8.25 -1.00
,17.Moving the optical center of a plus lens inward from the correct PD results
in _____ - ANSWER ✔ Base in prism
18.Where will the optical center appear in a lensometer when neutralizing a left
lens for base in prism? - ANSWER ✔ To the left of the target center
19.Glazing is a term used to indicate _____ - ANSWER ✔ A defect that occurs
when an anti-reflective lens is tinted
20.Frequently, bicentric grinding (slab-off) is used as a means of obtaining
prism in the reading field to correct induced prism imbalance. The usual
correction during the fabrication process is achieved by grinding prism in the
following direction: - ANSWER ✔ up
21.some people describe the effect as a cloud or curtain coming down over their
vision symptoms include flashes of light and floaters as well as a veiling
effect to the vision. they are describing - ANSWER ✔ retinal detachment
22.'retinopathy' is a general term that describes - ANSWER ✔ damage to the
retina
23.which of the following conditions will cause a peripheral field loss? -
ANSWER ✔ retinitis pigmentosa
24.the symptoms of vision problems in children can include any of the
following: - ANSWER ✔ all the above-squinting, closing or covering one
, eye, constantly holding materials close to the face, turning or tiling the head
to one side
25.a reason children really need UV protection - ANSWER ✔ children are more
vulnerable to damage from short term exposure to the sun and UV
26.which type of glare does a polarized lens eliminate? - ANSWER ✔ blinding
27.which type of glare does photochromic lenses eliminate? - ANSWER ✔
discomforting
28.which photochromic lens manufacturing process distributes the
photochromic molecules through the lens - ANSWER ✔ in-mass
29.what is the major feature of drive wear lenses? - ANSWER ✔ they activate
behind the wheel of the car
30.what kind of lenses does transitions make - ANSWER ✔ transitions does not
make lenses it a process not a lens type
31.this form of glare comes from light reflected off the front of your lenses so
that others cant see your eyes or from light reflected off the back or inside of
your lenses so that you see the reflection of your own lenses in your field of
vision - ANSWER ✔ distracting
2026/2027 COMPLETE QUESTIONS
WITH VERIFIED CORRECT ANSWERS ||
100% GUARANTEED PASS
<NEWEST VERSION>
1. Reflex tears - ANSWER ✔ Produced by lacrimal glands & are caused by
stimulus such as coughing, sneezing, strong smells & emotions
2. Layers of tear film (outer-innermost) - ANSWER ✔ Lipid, aqueous, mucin
3. Tear lake, tear prism, tear meniscus - ANSWER ✔ Collection of the thin
film of tears on the lower lid margin
4. Ectropia - ANSWER ✔ Eyelids turn outward
5. Entropion - ANSWER ✔ Eyelids turn inward
6. Conjunctiva - ANSWER ✔ Mucous membrane lining lids & globe
7. Goblet cells - ANSWER ✔ produce mucus
,8. Conjunctivitis - ANSWER ✔ inflammation of the conjunctiva
9. First tunic (outer tunic) - ANSWER ✔ Sclera, cornea, limbus
10.2nd tunic (middle tunic) - ANSWER ✔ Sclera-retina (iris, ciliary body,
choroid)
11.3rd tunic (inner tunic) - ANSWER ✔ Retina
12.The correct transposed RX for -1.00-.50x37 is? - ANSWER ✔ -1.50 + 0.50
x 127
13.The correct transposition for +2.00 -2.00 x 060 is? - ANSWER ✔ Plano
+2.00 x 150
14.An uncut lens must be at least _______ mm in diameter to allow the edging
of a 54 mm round lens decentered 3 mm in: - ANSWER ✔ 60 mm
15.A +3.00 sphere lens has a front base curve of +6.25. What is the back
surface curve? - ANSWER ✔ -3.25
16.A -2.00 -1.00 x 045 lens has a front base curve of +6.25. What are the back
surface curves? - ANSWER ✔ -8.25 -1.00
,17.Moving the optical center of a plus lens inward from the correct PD results
in _____ - ANSWER ✔ Base in prism
18.Where will the optical center appear in a lensometer when neutralizing a left
lens for base in prism? - ANSWER ✔ To the left of the target center
19.Glazing is a term used to indicate _____ - ANSWER ✔ A defect that occurs
when an anti-reflective lens is tinted
20.Frequently, bicentric grinding (slab-off) is used as a means of obtaining
prism in the reading field to correct induced prism imbalance. The usual
correction during the fabrication process is achieved by grinding prism in the
following direction: - ANSWER ✔ up
21.some people describe the effect as a cloud or curtain coming down over their
vision symptoms include flashes of light and floaters as well as a veiling
effect to the vision. they are describing - ANSWER ✔ retinal detachment
22.'retinopathy' is a general term that describes - ANSWER ✔ damage to the
retina
23.which of the following conditions will cause a peripheral field loss? -
ANSWER ✔ retinitis pigmentosa
24.the symptoms of vision problems in children can include any of the
following: - ANSWER ✔ all the above-squinting, closing or covering one
, eye, constantly holding materials close to the face, turning or tiling the head
to one side
25.a reason children really need UV protection - ANSWER ✔ children are more
vulnerable to damage from short term exposure to the sun and UV
26.which type of glare does a polarized lens eliminate? - ANSWER ✔ blinding
27.which type of glare does photochromic lenses eliminate? - ANSWER ✔
discomforting
28.which photochromic lens manufacturing process distributes the
photochromic molecules through the lens - ANSWER ✔ in-mass
29.what is the major feature of drive wear lenses? - ANSWER ✔ they activate
behind the wheel of the car
30.what kind of lenses does transitions make - ANSWER ✔ transitions does not
make lenses it a process not a lens type
31.this form of glare comes from light reflected off the front of your lenses so
that others cant see your eyes or from light reflected off the back or inside of
your lenses so that you see the reflection of your own lenses in your field of
vision - ANSWER ✔ distracting
