- The eye is the organ of vision that detects light and converts it into electro-chemical signals. It regulates the amount of light entering through the iris and focuses light onto the retina. - The eyelids and tears help lubricate and protect the eye. The iris controls the pupil size to regulate light. The cornea and lens refract light to focus images on the retina. Aqueous humor flows through the anterior chamber and is drained through outflow channels. - Regular eye exams every 1-2 years after age 40 can check external structures, accommodation, visual fields, eye movement and identify common vision conditions like nearsightedness, farsightedness, presbyopia, astigmat

2. •Organ of the visual system
•Detect light and convert it into electro-
chemical impulses and neurons
•The ability to interpret visible light
information reaching the eyes

3. •Relevant to the health of the ocular surface.
•It regulates the amount of light that
enters the eye
•Lets light into your eye as the muscles of
your iris change its shape.

4. •keeps your eye lubricated and prevents
irritants from getting in..
•plays an integral role in the lacrimal duct
system
•gives support to the eyelids.

5. • to help maintain tear drainage via the
lacrimal lake, and to permit greater
rotation of the globe
•Forms the border between the transparent
cornea and opaque sclera, contains the pathways
of aqueous humour outflow, and is the site of
surgical incisions for cataract and glaucoma.

6. •Drains out of the eyeball through outflow
channels located where the iris meets the
cornea.
•To collect the aqueous humor from the
anterior chamber of the eyeball and deliver
it to the veins of the eyeball.

7. •Controls the amount of light that enters
the eye by opening and closing the pupil
•to refract, or bend, light.
•The main pathway for drainage of aqueous
humor (AH) out of the eye Dr

8. •Moving the eyes as they place an image
on the fovea to get maximum resolution
•To transmit light, focusing it on the retina.

9. • <40 years old without family history of
hypertension, diabetes or eye disease: every 3-5
years
• >40 years old: every 2 years
• If the client wears reading glasses, let the client
wears it during the examination
• Checks for:
•External eye structure
•Accommodation
•Visual fields
•Extraocular muscle
•Visual activity

10. •Millimeter ruler
•Penlight
•Snellen chart or E-chart
•Opaque card
•Working gloves
•Jot down notebook
•Pen

11. Millimeter ruler
Penlight
Snellen Chart
Opaque card Jot down notebook
Pen

13. •Hair evenly distributed; skin intact
•Eyebrows symmetrically aligned; equal movement
•Skin intact; no discharge; no discoloration
•Lids close symmetrically
•Approximately 15 to 20 involuntary blinks per minute;
bilateral blinking
•When lids open, no visible esclera above corneas, and
upper and lower borders of cornea are slighty cover

14. •Transparent capilliaries sometimes evident;
sclera appears white
• Transparent, shiny, and smooth; details of the
iris are visible

15. Nearsightedness (myopia) is a common vision condition in
which near objects appear clear, but objects farther away
look blurry
Farsightedness (hyperopia) is a common
vision condition in which you can see
distant objects clearly, but objects nearby
may be blurry.

16. Presbyopia is a refractive error that makes it hard for
middle-aged and older adults to see things up close
Astigmatism is a common and generally
treatable imperfection in the curvature of
the eye that causes blurred distance and
near vision

17. A cataract is a cloudy area in the lens of
your eye