Vocab

Question 1

What is the Adnexa Oculi

Answer 1

aceessory structures of the eye, such as the lacrimal apparatus and the
eyelids.

Question 2

Albinism

Answer 2

hereditary loss of pigment in the eye, skin and hair; usually associated with lowered visual acuity, nystagmus and light sensitivity.

Question 3

Amblyopia

Answer 3

loss of vision without any apparent disease of the eye.

Question 4

Ametropia

Answer 4

a refractive error in which the eye, when in a state of rest, does not focus the image of an object upon the retina; includes hyperopia, myopia and astigmatism.

Question 5

Aniridia

Answer 5

congenital absence of the iris.

Question 6

Aniseikonia

Answer 6

a condition in which the ocular image of an object as seen by one eye differs
so much in SIZE or shape from that seen by the other eye that the two images cannot be
fused into a single impression.

Question 7

Aniscoria

Answer 7

inequality of the pupils in diameter.

Question 8

Anophthalmia

Answer 8

absence of a true eyeball.

Question 9

Aphakia

Answer 9

absence of the crystalline lens of the eye.

Question 10

Arcus Senilus

Answer 10

grayish white ring in the periphery of the cornea.

Question 11

Asthenopia

Answer 11

eye fatigue caused by tiring of the internal and / or external muscles.

Question 12

Bedewing (Cornea)

Answer 12

an edematous condition of the epithelium of the cornea characterized
by irregular reflecting from a multitude of droplets when the cornea is viewed with the
slit lamp.

Question 13

Blepharoconiunctivitis

Answer 13

inflammation of the eyelid and conjunctiva.

Question 14

Blepharoplasty

Answer 14

plastic surgery of the eyelid.

Question 15

Blepharoptisis

Answer 15

drooping of the upper eyelid.

Question 16

Buphthalmos

Answer 16

enlargement of the eyeball, resulting usually from congenital (infantile)
glaucoma.

Question 17

Canaliculus

Answer 17

passageway for drainage of tears from eyes to tear sac.

Question 18

Chemosis

Answer 18

severe edema of the conjunctiva.

Question 19

Chorioretinitis

Answer 19

Inflammation of the choroids and retina.

Question 20

Coloboma

Answer 20

congenital cleft in the IRIS due to the failure of the eye to complete growth in the part
affected.

Question 21

Cyclitis

Answer 21

inflammation of the ciliary body.

Question 22

Cycloplegic

Answer 22

drug that temporarily puts the ciliary muscle at rest and dilates the pupil;
often used to ascertain the error of refraction.

Question 23

Dacryocystitis

Answer 23

inflanlmation of the lacrimal sac.

Question 24

Dacryocystitis

Answer 24

Inflammation of the lacrimal sac.

Question 25

Dellen

Answer 25

a depressed area on the cornea which shows stain due to lack of wetting from the pre-corneal tear film. It is generally found adjacent to an elevated area.

Question 26

Dendritic Keratitis

Answer 26

fernlike projection on the cornea from herpes simplex.

Question 27

Diplopia

Answer 27

Double Vision

Question 28

Districhiasis

Answer 28

Iashes growing from the openings of meibomian glands.

Question 29

Ectropion

Answer 29

an eversion or turning outward of the eyelid.

Question 30

Entropion

Answer 30

Turning inward of the eyelid.

Question 31

Enucleation

Answer 31

Complete surgical removal of the eyeball.

Question 32

Epiphora

Answer 32

Excessive tearing causing an overflow onto the face.

Question 33

Esophoria

Answer 33

Tendency of the eye to turn inward

Question 34

Esotropia

Answer 34

manifest turning inward of the eye (convergent strabismus or crossed eye).

Question 35

Exophoria

Answer 35

tendency of the eye to turn outward.

Question 36

Exophthalmos

Answer 36

Abnormal protrusion of the eyeball.

Question 37

Exotropia

Answer 37

abnormal turning outward from the nose of one or both eyes (divergent strabismus).

Question 38

Farsightedness

Answer 38

hyperopia.

Question 39

Fornix

Answer 39

a loose fold of the conjunctiva, occurring where that part of the conjunctiva covering the eyeball meets the conjunctiva lining the eyelid

Question 40

Fuch's Dystrophy

Answer 40

Edema in the stroma associated with scarring on both the endothelium and the epithelium

Question 41

FundUS-

Answer 41

inside of the eye, primarily the retina, the optic disc and the retinal vessels that can be seen with an ophthalmoscope.

Question 42

Heterotropia

Answer 42

-an obvious or manifest deviation of visual axis of an eye out of alignment with the other eye. Synonyms are "cross-eye" and "strabismus."

Question 43

Hyphema

Answer 43

Pooling of blood in the anterior chamber of the eye.

Question 44

Keratectomy

Answer 44

removal of a portion of the cornea.

Question 45

Keratitis

Answer 45

-inflammation of the cornea; frequently classified as to type of inflammation and layer of cornea affected; for example, interstitial keratitis and phlyctenular kerati tis.

Question 46

Keratitis Sicca

Answer 46

dryness of the cornea.

Question 47

Keratoconus

Answer 47

a non-inflammatory corneal dystrophy in which the cornea becomes curved or conical in shape

Question 48

Keratoplasty

Answer 48

Corneal transplant operation.

Question 49

Lagophthalmos

Answer 49

a condition in which the lids do not completely close.

Question 50

Lamellar Keratoplasty

Answer 50

Operation in which only the diseased outer layers of the cornea are removed and the healthy donor cornea is sutured on as a replacement.

Question 51

Macrophthalmia

Answer 51

Abnormally large eyeball, resulting chiefly from infantile glaucoma.

Question 52

Microphthalmia

Answer 52

An abnormally small eyeball.

Question 53

Miotic

Answer 53

drug that causes the pupil to contract.

Question 54

Mydriatic Agent

Answer 54

drug that dilates the pupil.

Question 55

Nebula

Answer 55

FAINT or SLIGHTLY misty corneal opacity

Question 56

Nystagmus

Answer 56

An involuntary oscillating, rapid movement of the eyeball. It may be lateral, vertical, rotary or mixed.

Question 57

Pannus

Answer 57

invasion of the peripheral cornea by infiltration and formation of new blood vessels.

Question 58

Penetrating Keratoplasty

Answer 58

Operation to restore vision by replacing a section of opaque | cornea.

Question 59

Phacoemulsification

Answer 59

emulsification of a cataractous lens by ultrasound, permitting the material to be removed by aspiration.

Question 60

Proptosis

Answer 60

Protrusion of the eye.

Question 61

Ptosis (Blepharoptosis )-

Answer 61

a drooping of the upper eyelid.

Question 62

The index of refraction of the crystalline lens is:

Answer 62

1.42

Question 63

The cornea has an index of refraction of:

Answer 63

1.37

Question 64

The index of refraction of any given transparent material can be determined by:

Answer 64

dividing the speed of light in air by the speed of light in the material.

Question 65

The speed of light in air is approximately

Answer 65

186,000 miles per second

Question 66

The theory describes light as traveling through space in minute bursts of energy

Answer 66

corpuscular

Question 67

The range of wavelengths which are perceived as visible light can vary with the individual, it is generally understood to lie between:

Answer 67

390 and 750 nanometers

Question 68

To determine the power of a thin lens in air, it is necessary to consider:

Answer 68

front curve, back curve and index of refraction

Question 69

Toric transposition is used to determine

Answer 69

lens power in the principal meridians

Question 70

Corrected curve lenses are designed to

Answer 70

increase the useful area of the lens

Question 71

The power of a cylinder along its axis contains

Answer 71

no cylinder power

Question 72

It is important to consider vertex distance in spectacle lenses when the power exceeds:

Answer 72

7.00 D

Question 73

The refractive index of polycarbonate is

Answer 73

1.590

Question 74

The minimum fitting height for most progressive addition lenses is

Answer 74

22-25 mm depending on the brand