| Syllabus Home |
| CERTIFIED DISPENCING OPTICIAN - Duration 8 Months |
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| SUBJECTS AND PAPERS |
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| Module 1 | 1. Basic ocular anatomy & physiology
2. Basic optics |
| Module 2 |
3. Ophthalmic optics
4. Lenses- types, optics etc
5. Transposition: types, importance exercises
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| Module 3 | 6. Frames- measurement, datum & boxing system, selection
7. Principles of functional & cosmetic dispensing
8. PD, IPD, centration, on face measurement, pentascopic angle,
measurement of height
9. Problems & solutions in measurements
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| Module 4 | 10. Basics of refractive errors
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| Module 5 | 11. Progressive lenses
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| Module 6 | 12. Common complaints on optical counter & scientific solutions
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| Module 7 | 13. Coatings
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| Module 8 | 14. Sales techniques
15. Question paper: objective type & case study |
| 1. Basic ocular anatomy & physiology: |
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Objective:
The course is an essential part that will give basic idea about structure &
functions of various parts of an eye & visual system. This help student to
understand the seriousness & how wrong dispensing can affect patient’s
visual acuity. The understanding of basic optical structures helps
understand the Physiology of vision. Ultimately the student will be able to
answer the patient questions & queries effectively.
The course contains following topics:
- The structure of an Eye
- Structures in anterior eye ball
- Structures in posterior eyeball
- Basic anatomy & physiology of cornea
- Basic anatomy & physiology of anatomical lens
- Basic anatomy & physiology of Sclera
- Basic anatomy & physiology of Choroid, Iris
- Basic anatomy & physiology of Retina & Optic nerve
- Functions of all the structures
- Physiology of Vision
Assignmentz
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| 2. Basic optics: |
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Objective:
- Introduction
- Refraction, reflection, absorption
- Angle of incidence, reflection & refraction
- Terminology: focus, diopter, cardinal points
- Prisms
- Refractive index
- Light & its constituents & properties
- Visual spectrum
- Image formation by lenses
- Sign conventions
- Vergence of rays
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| 3. Basics of Ophthalmic Optics: |
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Objective:
- Introduction to Ophthalmic Optics
- Optical system of an eye
- Vision & visual function
- Difference between normal & abnormal vision
- Measurement/ assessment of vision: methods
- Maximum & minimum vision
- Basic causes of subnormal vision
- Optical considerations for structures of an eye
- Normal values for Optical structures: axial length, curvatures,power, diameters, refractive index etc
Assignment
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| 4. Ophthalmic lenses: |
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Objective:
- Classification & types
- Tinted, polarized, safety, special purpose lenses
- Spherical, cylindrical & sphero-cylendrical lenses
- Materials: composition & properties
- Recognition of ophthalmic lenses
- Terminology of ophthalmic lenses
- Centration
- Segment heights & inset in bifocal lenses
- Measurement units
- Axis notations
- Use of foci meter: procedure
- Measurement of power: foci meter technique & hand neutralization
technique
- Procedure for foci meter technique & hand neutralization
- Terminology associated with lenses
- Surfaces used in lens generating
- Basic manufacturing process (surfacing technique) & terminology
- Standards for ophthalmic lenses, tolerance limits
- Common defects in ophthalmic lenses
- Application in vision correction
Assignment
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| 5. Transposition: |
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Objective:
- Definition
- Types of transposition: simple & toric
- Simple transposition: +cyl to –cyl, optical cross, two cylinder and
vice versa
- Toric transposition: semi finished toric & semi-finished meniscus
- Types of prescriptions & terminology
- Importance
- Uses
- Problems for exercise
Assignment
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| 6. Frames: |
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- Types
- Frame materials
- Terminology
- Frame parts
- Frame measurements: Datum & Boxing system
- Frame selection
Assignment
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| 7. Principles of functional & Cosmetic Dispensing: |
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- Types of faces
- Basics of frame selection by type of face
- Skin tone & color of frame
- Profession & type of frame
- Selection of lens color & enhancement
Assignment
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| 8. Measurements: |
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- Face measurement
- Pd & IPD measurement
- Procedure of PD & IPD measurements
- Importance of measurements
- Pentascopic angle & its importance, normal value
- Vertex distance: definition, measurement, importance, problems
Assignment
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| 9. Problems, effects & solutions in measurements: |
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- PD & IPD measurement
- Centration
- Vertex distance measurement
- Power measurement in lenses
- Height & inset of bifocal lenses
- Adjusting vertex distance & pentascopic angle
Assignment
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| 10. Basics of refractive errors: |
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- Definition
- Types of refractive errors
- Basic etiology of refractive errors
- Effect on vision
- Basic correction guidelines
- Why specific type of lens for specific refractive error?
- Measuring the status of vision: vision taking
- Terminology in vision taking & recording
Assignment
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| 11. Progressive Lenses: |
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- Definition
- Types of refractive errors
- Basic etiology of refractive errors
- Effect on vision
- Basic correction guidelines
- Why specific type of lens for specific refractive error?
- Measuring the status of vision: vision taking
- Terminology in vision taking & recording
Assignment
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| 12. Common complaints on optical counter & scientific solutions: |
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| 13. Sales techniques: |
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| 14. Coatings: |
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- Types: anti-reflective, mirror or reflective coatings, hard coating,
anti-scratch coating.
- Application
- Methods of coating
- How it works?
- Why to coat lenses?
- Optical considerations of coatingsv
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| 15. Question paper & case study: |
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