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CONTACT LENS (RNH) > HISTORY & TYPES OF CONTACT LENS > Flashcards

HISTORY & TYPES OF CONTACT LENS Flashcards

1
Q

An artificial device whose from surface substitute the anterior surface of the cornea

a. Spectacles
b. Contact Lens
c. Eye glasses
d. Shades

A

b. Contact Lens

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2
Q

He sketched the first forms of new refracted surface on the cornea

a. John Herschel
b. Thomas Young
c. Rene Descartes
d. Da Vinci

A

d. Da Vinci

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3
Q

He sketched an elongated tube filled with water placed against an eyeball

a. John Herschel
b. Thomas Young
c. Rene Descartes
d. Da Vinci

A

c. Rene Descartes

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4
Q

He used wax to affix water-filled lenses to his eyes, neutralizing their refractive power, which he corrected with another pair of lenses.

a. John Herschel
b. Rene Descartes
c. Da Vinci
d. Thomas Young

A

d. Thomas Young

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5
Q

He posed two ideas for the visual correction: the first “a spherical capsule of glass filled with animal jelly”

a. John Herschel
b. Thomas Young
c. Rene Descartes
d. Louis J. Girard

A

a. John Herschel

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6
Q

He helped to popularize contact lens fitting as a medical procedure.

a. John Herschel
b. Thomas Young
c. Rene Descartes
d. Louis J. Girard

A

d. Louis J. Girard

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7
Q

He discussed the need for lens disinfection and the concept of adaptation to lens wear.

a. Adolf E Fick
b. Louis J. Girard
c. Carl Zeiss
d. Fa Müller And Ac Müller

A

a. Adolf E Fick

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8
Q

Made lenses from blown glass

a. Adolf E Fick
b. Louis J. Girard
c. Carl Zeiss
d. Fa Müller And Ac Müller

A

d. Fa Müller And Ac Müller

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9
Q

Made lathe cut lenses from molds which resulted in a better optical performance

a. Adolf E Fick
b. Louis J. Girard
c. Carl Zeiss
d. Fa Müller And Ac Müller

A

c. Carl Zeiss

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10
Q

He produced the first fully plastic contact lens

a. Heinrich Wöhlk
b. István Györffy
c. Carl Zeiss
d. William Feinbloom

A

b. István Györffy

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11
Q

He introduced a hybrid lens composed of glass and plastic

a. Heinrich Wöhlk
b. István Györffy
c. Carl Zeiss
d. William Feinbloom

A

d. William Feinbloom

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12
Q

He produced his own version of plastic lenses

a. Heinrich Wöhlk
b. István Györffy
c. Carl Zeiss
d. William Feinbloom

A

a. Heinrich Wöhlk

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13
Q

What year/era when the scleral lens was first made of glass blown shells with large size

a. 1880s
b. 1940s
c. 1970s
d. 2000

A

a. 1880s

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14
Q

What year/era did people prefer soft CL and RGP

a. 1880s
b. 1940s
c. 1970s
d. 2000

A

c. 1970s

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15
Q

What year/era when PMMA was discovered

a. 1880s
b. 1940s
c. 1970s
d. 2000

A

b. 1940s

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16
Q

It’s a type of CL that are more durable and resistant to deposit buildup, and generally give a clearer, crisper vision.

a. Soft contact lenses
b. Rigid gas permeable contact lenses

A

b. Rigid gas permeable contact lenses

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17
Q

It’s a type of CL that are are made of soft, flexible plastics that allow oxygen to pass through to the cornea.

a. Soft contact lenses
b. Rigid gas permeable contact lenses

A

a. Soft contact lenses

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18
Q

This type of CL has a is short adaptation time due to minimal movement and less tearing

a. Soft contact lenses
b. Rigid gas permeable contact lenses

A

a. Soft contact lenses

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19
Q

This type of CL is not as comfortable initially; and it may take a few weeks to get used to

a. Soft contact lenses
b. Rigid gas permeable contact lenses

A

b. Rigid gas permeable contact lenses

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20
Q

This type of CL has new materials that include silicone-hydrogels to provide more oxygen to your eye while you wear your lenses.

a. Soft contact lenses
b. Rigid gas permeable contact lenses

A

a. Soft contact lenses

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21
Q

This type of CL provides better quality of vision and is more durable

a. Soft contact lenses
b. Rigid gas permeable contact lenses

A

b. Rigid gas permeable contact lenses

22
Q 
The list enumerates the advantages of a Soft CL EXCEPT for:
a. Very comfortable & easy to adapt
b. Relatively inexpensive
c. With Spectacle Blur
d. Opti Larger & adhere more tightly to
the cornea
A

c. With Spectacle Blur

23
Q

The list enumerates the advantages of RGP CL EXCEPT for:

a. Better Quality of Vision
b. More durable
c. Less comfortable, tough adaptation
d. Costs more

A

d. Costs more

24
Q

A CL classification based on purpose: It is also called a bandage CL

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

b. Therapeutic Lens

25
Q

It used to enhance epithelial healing, prevent epithelial erosions,

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

b. Therapeutic Lens

26
Q

A CL classification based on purpose: It is also known as decorative or costume CL

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

c. Cosmetic Lens

27
Q

A CL classification based on purpose: It is used alter the appearance of the eyes; change eye color

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

c. Cosmetic Lens

28
Q

A CL classification based on purpose: It is used to rectify refractive errors and provide clear vision

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

a. Optical Lens

29
Q

A CL classification based on purpose: It is used for correcting astigmatism and presbyopia

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

a. Optical Lens

30
Q

A CL classification based on purpose: It is used in theatrical settings

a. Optical Lens
b. Therapeutic Lens
c. Cosmetic Lens

A

c. Cosmetic Lens

31
Q

FOCUS on Optical Contact Lenses: Below are the list of Key Optical Considerations EXCEPT for

a. Accommodation
b. Field of Vision
c. Tear Lens
d. Color

32
Q

FOCUS on Optical Contact Lenses: This optical consideration refers to the concept of the CL closer to the entrance pupils and lack frames (spectacle frames reduce the field of corrected vision by about 20 degrees).

a. Accommodation
b. Field of Vision
c. Tear Lens
d. Image Size

A

b. Field of Vision

33
Q

FOCUS on Optical Contact Lenses: This optical consideration that is influenced by the vertex distance of a corrective lens.

a. Accommodation
b. Field of Vision
c. Tear Lens
d. Image Size

A

d. Image Size

34
Q

FOCUS on Optical Contact Lenses: This optical consideration refers to the fluid lens

a. Accommodation
b. Field of Vision
c. Tear Lens
d. Image Size

A

c. Tear Lens

35
Q

FOCUS on Optical Contact Lenses: This refers to the tear layer between a contact lens and the corneal surface is an optical lens in its own right

a. Accommodation
b. Field of Vision
c. Tear Lens
d. Image Size

A

c. Tear Lens

36
Q

FOCUS on Optical Contact Lenses: Another term for Tear Lens

a. Liquid Lens
b. Water Lens
c. Tear Layer
d. Water Layer

A

a. Liquid Lens

37
Q

FOCUS on Optical Lenses: Defined as the difference in the vergence at the first principal point of the eye

a. Convergence
b. Accommodation
c. Orthokeratology
d. Keratometry

A

c. Orthokeratology

38
Q

FOCUS on Therapeutic Lenses: Below are the list of indications EXCEPT for

a. Eyelid abnormalities
b. Pink eye
c. Slow Healing Abrasions
d. Bleb leak posttrabeculectomy

A

b. Pink eye

39
Q

FOCUS on Therapeutic Lenses: This generally refers to the process of reshaping the cornea

a. Convergence
b. Accommodation
c. Orthokeratology
d. Corneal Refractive Lens

A

c. Orthokeratology

40
Q

FOCUS on Therapeutic Lenses: This RGP contact lenses designed to flatten the central cornea for a period of time after the lenses are removed

a. Disposable CL
b. Extended wear CL
c. Orthokeratology
d. Corneal Refractive Lens

A

c. Orthokeratology

41
Q

FOCUS on Therapeutic Lenses: The the fitting is simple and is based on the manifest refraction and keratometry readings and a nomogram

a. Disposable CL
b. Extended wear CL
c. Orthokeratology
d. Corneal Refractive Lens

A

d. Corneal Refractive Lens

42
Q

FOCUS on Therapeutic Lenses: This procedure in monocular aphakia improves the functional level of binocular vision

a. Minimizing aniseikonia
b. Maximizing aniseikonia
c. Eliminating aniseikonia
d. Adding Minimizing aniseikonia

A

a. Minimizing aniseikonia

43
Q

FOCUS on Cosmetic Lenses: Below are the list of indications EXCEPT for

a. Change color of the iris
b. Enhance natural eye color
c. For healing
d. Theatrical setting

A

c. For healing

44
Q

FOCUS on Cosmetic Lenses: It’s a type of tin on Cosmetic CL known as handling tint

a. Transparent tint
b. Opaque tint
c. Visibility tint
d. Cosmetic tint

A

c. Visibility tint

45
Q

FOCUS on Cosmetic Lenses: It’s a type of tint used to enhance or change color of your eyes

a. Transparent tint
b. Opaque tint
c. Visibility tint
d. Cosmetic tint

A

d. Cosmetic tint

46
Q

FOCUS on Cosmetic Lenses: It’s a type of tint that absorb or reflect all incoming light

a. Transparent tint
b. Opaque tint
c. Visibility tint
d. Cosmetic tint

A

b. Opaque tint

47
Q

FOCUS on Cosmetic Lenses: It’s a type of tint is available in various shades and the form of a concentric ring with clear pupil

a. Transparent tint
b. Opaque tint
c. Visibility tint
d. Cosmetic tint

A

a. Transparent tint

48
Q

A CL classification based on anatomical location: A very thin plastic lens, often flexible (soft lenses) floats on a layer of tears on the corneal surface of the eye.

a. Scleral Contact Lens
b. Semi Scleral Contact Lens
c. Corneal Contact Lens

A

c. Corneal Contact Lens

49
Q

A CL classification based on anatomical location: This lenses are not a good choice for corneas too diseased to bear lens pressure.

a. Scleral Contact Lens
b. Semi Scleral Contact Lens
c. Corneal Contact Lens

A

b. Semi Scleral Contact Lens

50
Q

A CL classification based on anatomical location: They are much larger than conventional GP lenses but smaller than a full scleral

a. Scleral Contact Lens
b. Semi Scleral Contact Lens
c. Corneal Contact Lens

A

b. Semi Scleral Contact Lens

CONTACT LENS (RNH) (8 decks)

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