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Standard |
Posted: 03/17/08
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R State Standard £ Institutionally
Developed College: N/A |
OPD
111 – Soft Contact Lenses
Course
Description
This course introduces students to soft contact lens fitting techniques. Emphasis is placed on fitting trial and prescribed lenses. Topics include: lens selection; inspection and verification; fitting guidelines and regulations; follow-up care; lens care and storage; and fitting specialty soft contact lenses.
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Competency Areas |
Hours |
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Lens
Selection |
Class |
2 |
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Inspection
and Verification |
D.
Lab |
4 |
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Fitting
Guidelines and Regulations |
P.
Lab/O.B.I. |
6 |
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Follow-Up
Care |
Credit |
6 |
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Lens
Care and Storage |
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Fitting
Specialty Soft Contact Lenses |
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Prerequisite: |
OPD
108 |
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Corequisite: |
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Course
Guide |
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Competency |
After completing
this section, the student will be able to: |
Hours |
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Class |
D.Lab
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P.Lab/ O.B.I. |
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LENS SELECTION |
2 |
4 |
6 |
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Methods |
Name
the selection methods used for soft contact lenses. |
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Contrast
the advantages and disadvantages of each soft contact lens selection method. |
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Source
of trials |
Describe the ways
of maintaining a trial lens for soft contact lens selection. |
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Contrast
the advantages and disadvantages of various methods of maintaining a trial
soft contact lens. |
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Discuss
the number and power range of trial soft contact lenses maintained at the
clinic for use in initial selection. |
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INSPECTION
AND VERIFICATION |
6 |
8 |
12 |
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Diameter |
Describe
the methods of verifying the lens diameter of soft contact lenses. |
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Compare
accuracy and ease of measuring a lathe-cut gel soft contact lens with a
spin-cast lens. |
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Measure
the diameter of a soft contact lens. |
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Posterior
curve |
Describe
the methods of verifying the posterior curve of soft contact lenses. |
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Compare
accuracy and ease of various methods used to measure the posterior curve of
soft contact lenses. |
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Measure
the posterior curve of a soft contact lens. |
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Refractive
power |
Describe
the methods used to measure the refractive power of a soft contact lens. |
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Compare
and contrast the various methods of measuring the refractive power of a soft
contact lens. |
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Measure
the refractive power of a soft contact lens. |
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Surface
inspection |
Describe
the procedure for performing a surface inspection of a soft contact lens. |
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Inspect
the surface of a soft contact lens. |
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Lens
water content |
Name
the instrument used to determine water content of a soft contact lens. |
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Describe
the procedure for measuring the water content of a soft contact lens. |
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Measure
the water content of a soft contact lens. |
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FITTING GUIDELINES AND REGULATIONS |
6 |
8 |
12 |
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Patient
evaluation |
Discuss
patient characteristics which indicate successful wear of contact lenses. |
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Discuss
patient characteristics which indicate possible problems from the wear of
soft contact lenses. |
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Advantages
of soft lenses |
Give
examples of lifestyles that favor successful wear of soft contact lenses. |
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Three-point
touch |
Discuss
the parameters of soft contact lenses that favor establishing three-point
touch. |
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Lens
size |
State
the general rule for determining the lens diameter for a specific customer. |
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Tight
lens |
Describe
the technique used to identify a tight fitting soft contact lens. |
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Discuss
the corrective procedures for a tight fitting soft contact lens. |
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Loose lens |
Describe
the technique used to identify a loose fitting soft contact lens. |
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Discuss
the corrective procedures for a loose fitting soft contact lens. |
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Describe
the use of the retinoscope reflex method of identifying a loose fitting soft
contact lens. |
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Insertion/removal |
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Describe
the technique used by a fitter when inserting a customer's soft contact lens. |
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Describe
the soft contact lens insertion technique the fitter recommends to customers. |
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Taco test |
Describe
the purpose and procedure of the taco test. |
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Regulations |
Discuss
the federal regulations which govern the dispensing of soft contact lenses. |
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Discuss
the purpose and coverage areas of The American National Standards Institute
Z80. |
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Discuss
the soft contact lens dispensing standards established by professional
agencies and associations. |
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Discuss
the soft contact lens dispensing regulations and standards established by the
Georgia State Board of Dispensing Opticians. |
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State
the conditions for obtaining a license to dispense soft contact lenses in |
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FOLLOW-UP CARE |
6 |
8 |
12 |
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Emergency
procedures |
Train
the customer in appropriate emergency responses to soft contact lens
insertion and removal problems. |
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Routine lens
hygiene |
Train
the customer in the selection of specific care solutions for soaking,
wetting, lubricating, disinfecting, and cleaning soft contact lenses. |
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Train
the customer in "after removal" cleaning procedures for soft
contact lenses. |
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Provide
soft contact lens customer with a written list of symptoms and problems and
the recommended actions. |
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Protocols |
Describe
the follow-up protocols for various types of soft contact lenses. |
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Describe
the follow-up protocols for various types of soft contact lens customers. |
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Schedule
follow-up visits compatible with customer physiology and type of soft contact
lens. |
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Screening data |
Obtain,
record, and interpret soft contact lens vision screening data. |
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Slit lamp
techniques |
Use
slit lamp techniques, with and without fluorescein, to determine adequacy of
fit for soft contact lens. |
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LENS CARE AND STORAGE |
3 |
4 |
6 |
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Disinfection |
Name
the methods used to disinfect soft contact lenses. |
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Describe
the steps involved in the heat method of disinfecting soft contact lenses. |
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Describe
the chemical method of disinfecting soft contact lenses. |
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Discuss
customer's symptoms resulting from improper soft contact lens disinfecting. |
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Cleaning solutions |
Discuss
the sources of foreign deposits on soft contact lenses. |
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Name
the types of cleaners used to remove various deposits from soft contact
lenses. |
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Describe
the procedure for using surfactants to remove deposits from soft contact
lenses. |
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Describe
the procedure for using enzymes to remove deposits from soft contact lenses. |
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Describe
the procedure for using oxidants to remove deposits from soft contact lenses. |
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Describe
the procedure for using abrasives to remove deposits from soft contact
lenses. |
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Describe
the procedure for using solvents to remove deposits from soft contact lenses. |
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Accessory solutions |
Discuss
the benefits and limitations of using soft contact lens accessory solutions. |
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Instruct
the customer in the proper use of soft contact lens accessory solutions. |
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Solution contamination |
Describe
the factors involved in contamination of soft contact lens solutions. |
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Discuss
the importance of proper instruction in the use of soft contact lens
solutions as a contamination preventative. |
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Describe
methods of contamination prevention for bottled solutions used in contact
lens care and storage. |
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FITTING SPECIALITY SOFT CONTACT LENSES |
6 |
8 |
12 |
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Goals |
Describe
the goals of fitting soft contact bandage lenses. |
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Types |
Discuss
the availability of bandage style soft contact lenses as to diameter, base
curve, power range, and water content. |
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Indications for
wear |
Define
recurrent erosion as it applies to the cornea. |
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Name
the conditions which indicate erosion of the cornea. |
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Describe
how bandage style soft contact lenses are used to offset erosion of the
cornea. |
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Name
the common causes of corneal edema which leads to bullous keratopathy. |
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Describe
how bandage style soft contact lenses are used to treat the condition of
bullous keratopathy. |
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Describe
the condition of trichiasis and the use of bandage style soft contact lenses
for its treatment. |
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Describe
the use of a bandage style soft contact lens to protect the eye from lid
sutures. |
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Describe
the abnormal conditions of the cornea which are indications for treatment
with bandage soft contact lenses. |
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Discuss
the procedures for matching a specific bandage soft contact lens to a
specific disease. |
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Fitting |
Describe
the method used to fit a bandage style soft contact lens. |
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Instruct
the customer in the proper wear of a bandage style soft contact lens. |
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Contraindications |
Describe
the indications which limit or prohibit the use of bandage style soft contact
lenses. |
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Complications |
Discuss
the treatments used for complications arising from bandage style soft contact
lens wear. |
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Suggested
Resources |
Mandell, R. B. (1988). Contact Lens
Practice (4th ed.).
Soper, J. W., et al. (1984). Adverse
Effects of Contact Lens Wear: An Atlas for Ophthalmic Practitioners. horofare,
NJ: Slack.
Stein & Slatt. (1988). Ophthalmic
assistant: Fundamentals and Clinical Practice (5th ed.).
Stein & Slatt. (1990). Fitting Guide
for Rigid and Soft Contact Lenses (3rd ed.). St. Louis: Mosby.