Spectacle Lenses and Frames (5 cr)

Objective

Students are able to:
Distinguish between the correction of myopia, hyperopia and astigmatism
Explain prescription entries
Distinguish between different lens types and coatings and describe their intended use
Compare the properties of different lens materials and lens designs, including high powers
Identify different frame materials and know how to handle them as required by the material
Measure the pupil distance for spectacles distance and near vision
Measure fitting height for different lens types
Calculate the required lens size for the frame
Adjust the frame to the customer
Describe the specific structures and viewing limitations of the progressive lenses
Describe how to act in case of accidental damage, manufacturing error or in cases where the customer is unsatisfied with their spectacles.

Content

Ametropias and correction with spectacles
Eyeglass prescription
Spectacle lenses; materials, refractive indices, different surface treatments, optical properties, different lens types
The optical center of a spectacle lens
Pupil distance and fitting height
Spectacle frames; materials, parts, manufacturing, frame markings, frame selection for the customer
Presbyopic lens types
Consumer law practices

Location and time

Autumn semester 2025, the 1st period. Lectures are conducted either on campus or remotely (Teams or Zoom).

Materials

Pointed literature
Spectacle Lenses: Theory and Practice. Colin Fowler, Keziah Latham Petre. Boston: Butterworth-Heinemann, 2001
SYSTEM FOR OPHTHALMIC DISPENSING. Clifford Brooks, Irvin Borish. Elsevier Health Sciences 2006
Ophthalmic Lenses & Dispensing. Mo Jalie SMSA FBDO(Hons) HonFCGI HonFCOptom MCMIgt. 1999
Materials & Treatments, Essilor
Pinnoitteet, Essilor
Lecture materials
Pointed articles

It is not allowed to use or distribute any tasks, assignments or MATERIALS in any other way than in student's own studies. Distributing ONLY with teacher's personal permission.

Teaching methods

Interactive lecture
Lecture
Guided assignments
Individual or group assignment
Workshop work

Exam schedules

Written exam on campus: XX.XX.2025
First retake: Exam
Second retake: Exam

Student workload

Spectacle lenses 3 ECTS
Spectacle Frames 2 ECTS
1 ECTS is approximately 27 hours of student work

If the student has a decision of special educational need, shall this student contact the teacher of the course immediately after the end of the registration period (or latest before the start of the course.)

Further information

Instructions on the use of artificial intelligence during the course are given separately. Students should familiarise themselves with Metropolia's AI guidelines and follow them in their study attainments.

Evaluation scale

0-5

Assessment criteria, satisfactory (1)

Assessment: 0-5
For evaluation criteria, see the attachment.
Assessment criteria for beginners are applied.

Assessment criteria, good (3)

Assessment: 0-5
For evaluation criteria, see the attachment.
Assessment criteria for beginners are applied.

Assessment criteria, excellent (5)

Assessment: 0-5
For evaluation criteria, see the attachment.
Assessment criteria for beginners are applied.

Assessment criteria, approved/failed

Assessment: 0-5
For evaluation criteria, see the attachment.
Assessment criteria for beginners are applied.

Assessment methods and criteria

Written exam
Written assignments
The grade of the course is determined based on the exam.

Qualifications

No previous requirements

Objective

Students are able to:
Distinguish between the correction of myopia, hyperopia and astigmatism
Explain prescription entries
Distinguish between different lens types and coatings and describe their intended use
Compare the properties of different lens materials and lens designs, including high powers
Identify different frame materials and know how to handle them as required by the material
Measure the pupil distance for spectacles distance and near vision
Measure fitting height for different lens types
Calculate the required lens size for the frame
Adjust the frame to the customer
Describe the specific structures and viewing limitations of the progressive lenses
Describe how to act in case of accidental damage, manufacturing error or in cases where the customer is unsatisfied with their spectacles.

Content

Ametropias and correction with spectacles
Eyeglass prescription
Spectacle lenses; materials, refractive indices, different surface treatments, optical properties, different lens types
The optical center of a spectacle lens
Pupil distance and fitting height
Spectacle frames; materials, parts, manufacturing, frame markings, frame selection for the customer
Presbyopic lens types
Consumer law practices

Qualifications

No previous requirements