JCAHPO Certified Ophthalmic
Assisting EXAM STUDY GUIDE 2026
COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS
<RECENT VERSION>
1. Disorders associated with headaches? - ANSWER ✔ Hypertension or Brain
Tumor
2. Headaches caused by refractive error will not appear during? - ANSWER ✔
1. Not appear at night
Will not appear during sleep
Will not appear when you wake up
3. Where is the aqueous humor located? - ANSWER ✔ Between the lens and
the cornea.
4. How many rods are there? - ANSWER ✔ 125 million
5. Where are the rods located? - ANSWER ✔ In the retina
,6. How many cones are there? - ANSWER ✔ 6 million
7. Where are the cones located? - ANSWER ✔ In the retina.
8. Rods are best in what lighting condition? - ANSWER ✔ dim light
9. Without rods what condition will occur? - ANSWER ✔ night-blindness
10.Rods are good in what color light? - ANSWER ✔ Red
11.What type of drops are used to dilate the eyes? - ANSWER ✔ Mydriatic
drops
12.What type of drops are used to dilate the eyes and paralyze the fine focusing
muscle for near vision? - ANSWER ✔ Cycloplegic drops
13.Measuring PD starts from where and ends where? - ANSWER ✔ Nasal side
of right pupil to the temporal side of the pupil on the patients left eye.
14.levator palpebrae superioris - ANSWER ✔ Muscle that elevates the lid
15.Sclera - ANSWER ✔ white opaque fibrous shell, main purpose is to protect
eye
,16.Cornea - ANSWER ✔ A transparent convex covering which protects the eye
and helps focus light rays onto the retina and the back of the eye
17.meibomian glands - ANSWER ✔ The largest oil-secreting glands, which are
embedded in the posterior connective tissue substance of the lids
18.Corneal Epithelium - ANSWER ✔ Part of the cornea that is usually injured
by superficial abrasions or small foreign bodies. Is 5-7 cells thick and is
composed of nonkeratinized stratified squamous cells.
19.Corneal Epithelium - ANSWER ✔ Part of the cornea that regenerates
rapidly and heals without leaving a scar.
20.Bowman's membrane - ANSWER ✔ Consists of randomly oriented collagen
fibrils of greater periodicity then the underlaying stroma.
21.Bowman's membrane - ANSWER ✔ Acellular layer of cornea that has no
regenerative capabilities. Function is unclear.
22.Stroma - ANSWER ✔ Layer just under Bowman's membrane. Accounts for
90% of corneal thickness and is composed of 78% water.
23.Descemet's membrane - ANSWER ✔ Layer of the cornea that is composed
of type III collagen, forms the basement membrane of epithelial cells.
, 24.Endothelium - ANSWER ✔ 4-6um thick layer of the cornea made of
500,000 cells that maintains corneal deturgescence. No regenerative
abilities.
25.Limbus - ANSWER ✔ The gray, semitransparent area which demarcates the
junction of the cornea and sclera.
26.Cornea is completely nourished by - ANSWER ✔ 3 sources: A plexus of
fine capillaries at the limbus, the tear film, and the aqueous humor.
27.Vitreous - ANSWER ✔ jelly like structure, thick and viscous, that occupies
the vitreous chamber in the posterior concavity of the globe.
28.Lens - ANSWER ✔ A transparent biconvex structure situated between the
iris and the vitreous.
29.Iris - ANSWER ✔ The most anterior structure of the uveal tract.
30.Uveal tract - ANSWER ✔ Consists of three structures: iris, ciliary body, and
choroid.
31.Retina - ANSWER ✔ The innermost coat of the eye, formed of sensitive
nerve elements and connected to the optic nerve.
Assisting EXAM STUDY GUIDE 2026
COMPLETE QUESTIONS WITH
CORRECT DETAILED ANSWERS ||
100% GUARANTEED PASS
<RECENT VERSION>
1. Disorders associated with headaches? - ANSWER ✔ Hypertension or Brain
Tumor
2. Headaches caused by refractive error will not appear during? - ANSWER ✔
1. Not appear at night
Will not appear during sleep
Will not appear when you wake up
3. Where is the aqueous humor located? - ANSWER ✔ Between the lens and
the cornea.
4. How many rods are there? - ANSWER ✔ 125 million
5. Where are the rods located? - ANSWER ✔ In the retina
,6. How many cones are there? - ANSWER ✔ 6 million
7. Where are the cones located? - ANSWER ✔ In the retina.
8. Rods are best in what lighting condition? - ANSWER ✔ dim light
9. Without rods what condition will occur? - ANSWER ✔ night-blindness
10.Rods are good in what color light? - ANSWER ✔ Red
11.What type of drops are used to dilate the eyes? - ANSWER ✔ Mydriatic
drops
12.What type of drops are used to dilate the eyes and paralyze the fine focusing
muscle for near vision? - ANSWER ✔ Cycloplegic drops
13.Measuring PD starts from where and ends where? - ANSWER ✔ Nasal side
of right pupil to the temporal side of the pupil on the patients left eye.
14.levator palpebrae superioris - ANSWER ✔ Muscle that elevates the lid
15.Sclera - ANSWER ✔ white opaque fibrous shell, main purpose is to protect
eye
,16.Cornea - ANSWER ✔ A transparent convex covering which protects the eye
and helps focus light rays onto the retina and the back of the eye
17.meibomian glands - ANSWER ✔ The largest oil-secreting glands, which are
embedded in the posterior connective tissue substance of the lids
18.Corneal Epithelium - ANSWER ✔ Part of the cornea that is usually injured
by superficial abrasions or small foreign bodies. Is 5-7 cells thick and is
composed of nonkeratinized stratified squamous cells.
19.Corneal Epithelium - ANSWER ✔ Part of the cornea that regenerates
rapidly and heals without leaving a scar.
20.Bowman's membrane - ANSWER ✔ Consists of randomly oriented collagen
fibrils of greater periodicity then the underlaying stroma.
21.Bowman's membrane - ANSWER ✔ Acellular layer of cornea that has no
regenerative capabilities. Function is unclear.
22.Stroma - ANSWER ✔ Layer just under Bowman's membrane. Accounts for
90% of corneal thickness and is composed of 78% water.
23.Descemet's membrane - ANSWER ✔ Layer of the cornea that is composed
of type III collagen, forms the basement membrane of epithelial cells.
, 24.Endothelium - ANSWER ✔ 4-6um thick layer of the cornea made of
500,000 cells that maintains corneal deturgescence. No regenerative
abilities.
25.Limbus - ANSWER ✔ The gray, semitransparent area which demarcates the
junction of the cornea and sclera.
26.Cornea is completely nourished by - ANSWER ✔ 3 sources: A plexus of
fine capillaries at the limbus, the tear film, and the aqueous humor.
27.Vitreous - ANSWER ✔ jelly like structure, thick and viscous, that occupies
the vitreous chamber in the posterior concavity of the globe.
28.Lens - ANSWER ✔ A transparent biconvex structure situated between the
iris and the vitreous.
29.Iris - ANSWER ✔ The most anterior structure of the uveal tract.
30.Uveal tract - ANSWER ✔ Consists of three structures: iris, ciliary body, and
choroid.
31.Retina - ANSWER ✔ The innermost coat of the eye, formed of sensitive
nerve elements and connected to the optic nerve.
