Type
Crossword
Description

the back of the eyeball nerve is called optical nerve
clear lens in front of the eye cornea
the black hole in the iris pupil
colored part of they eye iris
covers all the eyeball except the cornea sclera
converts light to electrical signals retina
On retina where optic nerve leads back into the brain blind spot
Problem seeing close objects HYPEROPIA
Corrected by glasses with converging lenses PRESBYOPIA
Problem seeing objects far away MYOPIA

parts of the eye Word Search

Type
Word Search
Description

aqueous humor
choroid
ciliary body
cornea
eye muscle
fovea
iris
lens
optic nerve
pupil
retina
sclera
vitreous humor

Eye Crossword

Type
Crossword
Description

Disease; lens becomes progressively opaque cataract
In retina; helps us see color & detail Cones
Vision problem caused by error in shape of cornea. astigmatism
When diabetes can cause damage to structures in the eye Diabetic Retinopathy
Clear window that refracts light Cornea
Focuses light onto retina Lens
Diagnosis diseases and performs eye surgery Opthalmologist
Technicians that design, verify and fit eyeglass lenses Optician
Condition of increased pressure in eyeball Glaucoma
Detects light and contains cones and rods Retina
Controls how much light enters; changes size of the pupil Iris
Damage to the part of the retina that perceives light Macular Degeneration
Doctor that examines eyes and prescribes glasses. Optometrist
Helps us see in poor lighting & gives us "night vision" Rods
Tissue that provides oxygen to retina Choroid
The white part of the eye Sclera
Specialize in disorders of eye movements. Orthopist
Allows light to enter by dilating and contracting pupil

Mirrors and Lenses Crossword

Type
Crossword
Description

We use this to see our reflection. mirrors
Light from us bounces off of a mirror to show us how we look reflection
Our eyes go through this process to give us sight refraction
if we look at a table and cannot see through it, the table is _____. opaque
This object uses different lenses to magnify and enhance the apperance of an object we are observing. microscope
This either refracts, reflects, or absorbs light to change the way we view objects. lense
Most windows are ______, because we can see through them and they absorb a little light. Transparent
tranfers impulse to the brain for sight Optic Nerves
Where a wave moves apart Rarefaction
A sensitive membrane at the back of the inside of an eye retina
An outward-curved lens convex
______ makes things visible light
An inward-curved lens concave
A ______ regulates the amount of light entering the eye pupil
The ______ focuses light waves on the retina focal point
The ______ refract light entering the eye and sends it to the back of the eye cornea
The act of seeing sight
This device uses highly concentrated light laser
transmission of some light but can cause it to disort translucent
Able to be seen visible
An optical tool that uses refraction to seperate different wavelengths that make up white light prism

Year 9 light Crossword

Type
Crossword
Description

The trasparent part of the covering of the iris CORNEA
The liquid that the human eye is made up of VITREOUSHUMOUR
The nerve layer that covers the back of the eye RETINA
The dense fibrous opaque white outer coat enclosing the eyeball SCELERA
The cells in the eye that helps us to see colour CONE CELLS
The cells in the eye that helps us to see far away and close-up objects RODCELLS
This nerve carries the electrical signals from the retina to the brain OPTICNERVE
The clear, watery fluid and is used to lubricate the lens and cornea AQEUOSHUMOUR
A flexible structure that enables light to be focused on the retina LENS
An opening in the iris that determines the amount of light entering the eye PUPIL
The scientific word for short sightedness MYOPIA
The scientific word for longsightedness HYPEROPIA
This line divides the angle between the incident ray and reflected ray into two equal angles NORMAL
These angles are always the same ANGLESOFINCEDENCEANDREFLECTION
Change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front. REFRACTION

Optics Crossword

Type
Crossword
Description

A type of optical telescope that uses a lens as its objective to form an image. refracting
Is an optical telescope which uses curved mirrors that reflect light and form an image. reflecting
The _____lens in a telescope focuses the light to a point in front of the eyepiece. objective
Another word for nearsightedness myopia
Images are formed behind the retina, not on it, and this causes close-up images to be blurry. hyperopia
The most common cause of blindness cataracts
The pupil gets____in bright light. smaller
The aqueous humour is the ____fluid, that fills the front part of the eyeball. clear
The ___ spot is where the optic nerve leaves the retina. blind
The coloured part of the eye. iris
The _____body is a circular muscle that enables the lens to change shape for focusing. ciliary
The _____is a layer of blood vessels that nourishes the eye. choroid
With refraction of light no image is formed when the object is at the_____point. focal
A lens that makes light rays come together is called a _____lens. convex
These lenses make light spread apart. concave
A _____and dark-coloured surface will absorb light the most. rough
Concave mirrors are also called _________mirrors converging
Your image will be upright, but much smaller than what you normally see in this kind of mirror. plane
The ability to let light rays in. transparent
Light can partially get through.. translucent
Allows no light to get through. Opaque
,Light can travel in a straight line just like _____. waves
When the sunlight passes from the air through rain droplets before reaching your eyes, what is this called? dispersion
Different _______of light have different wavelengths. colours
Where does the energy of the electromagnetic spectrum come from? sun
,As the wavelength gets shorter, both the frequency and energy _______. increase
Which rays are the highest forms of electromagnetic radiation? gamma
Waves where the particles of the medium vibrate with an up and down motion. transverse
What is the branch of science called that deals with the study of waves that travel through the Earth? seismology
What kind of wave can you see on the water on a windy day? surface

THE EYE (Ophthalmology) Word Search

Type
Word Search
Description

choroid
cornea
eye
fovea
iris
lens
optic nerve
pupil
retina
sclera
vitreous

The Eye Crossword

Type
Crossword
Description

carries blood away from the heart ARTERY
carries blood to the heart vain
white section of the eye sclera
receives images retina
opening that allows light in pupil
refracts light in order to focus it on the retina. lens
controls light entering the pupil iris
transparent part of the eye that covers the eye cornea
between the cornea and the iris anteriorchamber
between the iris and the lens posteriorchamber
yellow area surrounding the fovea that acts as sunglasses macula
used for central/focused vision fovea
provides oxygen to the retina choroids
provides shape vitreous
signals to the brain to let us see opticnerve
controls viewing on objects from different distances ciliarybody
moves eye downward inferiorrectusmuscle
moves eye upward superiorrectusmuscle

Anatomy of the Eye Crossword

Type
Crossword
Description

Most of the eye's refractive power comes from this structure of the eye cornea
Jelly like structure that occupies the posterior cavity of the globe vitreous
Pigmented tissue lying behind the cornea that gives color to the eye iris
Opaque, fibrous protective outer layer of the eye sclera
Vascular layer of the eye lying between the retina and sclera that provides nourishment to outer layers of the retina choroid
The transparent biconvex structure situated between the iris and the vitreous lens
Transparent mucous membrane covering the outer surface of the eye except the cornea conjunctiva
Clear, watery fluid that fills the space between the back surface of the cornea and the front surface of the vitreous, bathing the lens aqueoushumor
Second cranial nerve. The largest sensory nerve of the eye that carries impulses fro sight from the retina to the brain opticnerve
Contains sensory receptors for the transmission of light, is really part of the brain retina
Black circular opening in the center of the iris that regulates the amount of light that enters the eye pupil
Tiny opening of the lacrimal canaliculus of each upper and lower eyelid punctum
The yellow spot in the center of the retina; area of acute central vision macula
Central pit in the macula that produces the sharpest vision. Contains a high concentration of cones and no retinal blood vessels. fovea
Transitional zone about 1-2 mm wide, where the cornea joins the sclera and the bulbar conjunctiva attaches to the eye limbus
Pink fleshy conjunctival tissue in the nasal corner of each eye over the semilunar fold caruncle
Structures covering the front of the eye, which protects it; distributes tear film over the exposed corneal surface eyelids
Responsible for moving the eye and are considered extrinsic extraocularmuscles
Fluid filled space inside the eye between the iris and the innermost corneal surface anteriorchamber
Radial fibers that suspend the lens from the ciliary body and hold it in position zonules

Eyes and Ears Word Search

Type
Word Search
Description

vibrations
deafness
balance
oval window
sound waves
auditory nerve
cochlea
semicircular canals
vestibule
eustachian tube
ears
inner
middle
outer
cataracts
glaucoma
astigmatism
nearsightedness
farsightedness
cones
rods
optic nerve
retina
lens
pupil
iris
cornea
eyes
sclera

Vision Word Search

Type
Word Search
Description

Optic disc
Epithelium
Eye lid
Lacrimal canal
Fovea
Iris
Blood vessel
Optic nerve
Macula
Choroid
Sclera
Vitreous humour
Retina
Ciliary body
Conjunctiva
Lens
Posterior chamber
Anterior chamber
Pupil
Cornea