LAB 1_Zharifah

FACULTY OF HEALTH SCIENCE
UNIVERSITI TEKNOLOGI MARA KAMPUS PUNCAK ALAM

BACHELOR OF OPTOMETRY(HONS.)
HS246

OPT507
LAB 1:
INTRODUCTION TO CONTACT LENS PRODUCTS AND
KERATOMETER

NAME STUDENT ID
ZHARIFAH FATHANAH BINTI ZAMKHURI 2020455268

GROUP:
HS2464A

LECTURER:
DR. NOOR HAZIQ BIN SALIMAN

1. Introduction to different types of contact lenses, care systems and instrument at
the contact lens clinic

a. Types of contact lenses

Brand Name Type Material Parameter Wearing
Johnson & (power/cyl/bc/diameter) Modality
(soft/RGP)
Johnson -5.00/-1.25x90/8.6/14.5 mm Daily wear,
Bausch & Acuvue Oasys Soft Senofilcon monthly
A disposable
Lomb
Alcon Bausch & Soft Alphafilcon -5.00/-1.75x180/8.5/14.5 mm Daily wear,
monthly
Alcon Lomb disposable

Menicon Softlens Daily wear,
daily disposable
Menicon Toric Dailies Soft Nelfilcon A -4.00/-1.25x90/8.8/14.4 mm
Daily wear,
Menicon Aqua Comfort monthly
disposable
Menicon Plus
Daily wear,
Air Optix Plus Soft Lotrafilcon -1.00/8.6/14.2 mm Monthly
disposable
Hydra Glyde B
Daily wear,
Menicon Z RGP Tisilfocon -3.00/7.8/9.2 mm Monthly
A disposable

Menicon Z RGP Tisilfocon -4.00/7.8/9.2 mm Daily wear,
A Monthly
disposable
Menicon Z RGP Tisilfocon -4.00/7.6/9.2 mm
A Daily wear,
Monthly
Menicon Z RGP Tisilfocon -4.00/7.9/9.4 mm disposable
A

b. Contact lens care and maintenance systems

Brand Name Type Purposes
Alcon Optic Free Pure
Multi-purpose • Cleaning & disinfect
Alcon Moist solution for soft • Retain lens moisture
• Remove protein deposit
Alcon AO Sept Plus lens • Deep cleanse lens
• Neutralize solution to H2O
Tears Naturale*II H2O2 • Storage
(For silicone • Moisturize dry eye during
hydrogel lens)
wearing cl
Artificial tears • Improve comfortable of wearer
• Disinfect lens
Johnson & Complete Multi- Multi-purpose • Storage the lens
Johnson Purpose Solution solution for soft
• Moisturizes the lens with
Johnson & Blink Contacts lens sodium hyaluronate
Johnson Eye drop
• To rewet lens before insertion
Bausch & Lomb Boston Simplus Multi-purpose and lubricate during wear
solution for RGP
• Refresh tired and dry eyes
Bausch & Lomb Re-Nu Multiplus Eye drop • Remove protein debris
• Cleans the lens
Menicon Menicare Plus Multi-purpose • Disinfects
solution for RGP • Lubricating & rewetting the

lens
• Moistens lens
• Cleaning
• Disinfecting soaking
• Rinsing lubricating

2) PRELIMINARY EVALUATION

A. History Taking
Patient’s information: Nurul Asyiqin binti Azrul Hisam
Purpose of visit:

- Contact lens fitting
- Correct refractive error and improve cosmetic appearance
External observation: patient’s posture, head and eyes have no abnormalities
Ocular History:
- Wears spectacles for 12 years (current spectacles for 2 years)

▪ Chief of complain: Dry eyes when driving (didn’t blink as much as needed)
▪ Frequency: every time driving
▪ Problem on both RE and LE
▪ Problem starts: 6 months ago
▪ Level of severity: 2/5
▪ No pain in any eye movement
▪ Relief by closing eyes for few seconds
▪ No other underlying symptoms
- First time visit for contact lens fitting
- Never use contact lens
- Eye trauma/surgery/disease: -
▪ Family ocular history: 4 out of 6 wears spectacles
▪ Ocular disease: -
Medical History:
- No systemic disease
- Medication/allergic/supplement: -
▪ Family medical history: - pt’s mother has diabetes mellitus (currently with

insulin injection)
Contact lens history:

- Never wear contact lens
Examiner’s evaluation: - pt need to do a few eyes examination especially TBUT
concurrent to her dry eyes and to check if she compatible to wear cl. Other than that, need
to consult patient about proper way to handle cl since its her first time.

B. Keratometry 1 (Asyiqin) 2 (Ain Husna)
RE: RE:
Subject 43.5 D @ 90 44.50 D @ 90
Keratometry reading 43.25 D @ 180 43.125 D @ 180
7.84 mm @ 90 7.58 mm @ 90
7.80 mm @ 180 7.82 mm @ 180
LE: LE:
44.375 D @ 90 44.50 D @ 90
43.25 D @ 180 42.75 @ 180
7.60 mm @ 90 7.58 mm @ 90
7.80 mm @ 180 7.90 mm @ 180

Cornea astigmatism RE: RE:
-0.25 DC x 180 -1.375 DC x 180
LE: LE:
-1.13 DC x 180 -1.75 DC x 180