PROGRESSIVE LENS Step By Step Definition التعريف Designs التصميمات Lens Design Selectionإختيار التصميم للعدسة Marking and Fitting علامات العدسة والتركيب لملائمة المرتدي Success with PAL النجاح مع العدسات المتدرجة Troubleshoot إستكشاف المشاكل وحلها DEFINITION There is a continuous downward transition of lens power from a stable distance power in the upper portion of the lens through a progressive zone to a stable near vision portion in the lower area of the lens. يوجد تغير مستمر لقوة العدسة نحو الأسفل من قوة مسافة ثابتة في الجزء العلوي من العدسة عبر منطقة متدرجة إلى الجزء الثابت للرؤية القريبة في المنطقة السفلية من العدسة. A lens designed for presbyopia with power gradually increasing from the distance zone, through a progression (Umbilical line) to the near zone. عدسة مصممة لطول النظر العمري مع زيادة القوة تدريجيًا من خلال التدرج في الممر السري Umbilical (IP) من منطقة الرؤية البعيدة DP إلى المنطقة الرؤية القريبة NP

1. Mohamed Said Ibrahim
mm.Said2004@ymail.Com

2. Mohamed Said Ibrahim
mm.Said2004@ymail.Com

3. » Definition ‫التعريف‬
» Designs ‫التصميمات‬
» Lens Design Selection ‫للعدسة‬ ‫التصميم‬ ‫إختيار‬
» Marking and Fitting ‫المرتدي‬ ‫لمالئمة‬ ‫والتركيب‬ ‫العدسة‬ ‫عالمات‬
» Success with PAL ‫المتدرجة‬ ‫العدسات‬ ‫مع‬ ‫النجاح‬
» Troubleshoot ‫وحلها‬ ‫المشاكل‬ ‫إستكشاف‬
Topics
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

4. Presenter
Mohamed said Ibrahim
Careers:
• Key Account sales Manger and training, Nikon Lenswear middle east
• Sr.Optometrist, Hadi Hospital
• International Member of the American Optometric Association
• Certified International Professional Trainer (CIPT)
• Ambassador of the Arab British Academy for Higher Education
• Advanced Member of the UK Professional Board
• Trainer of BARAKA AND C&CO. Optics (earlier)
• Demonstrated and lecturer of the High optics technology institute (earlier)
Educational:
 PhD researcher in visual behavioural rehabilitation for vision defects
 Master Degree of projects management in optics and vision sciences by the
faculty of projects management at Maryland University, USA
 BS.C in optics technology and vision science
 achieved degree of many short diplomas in health, patient care, customer
service, business administration.
Experience:
 More than 15 years of experience for optical shops, optical products, and
optometry clinic
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

5. » There is a continuous downward transition of lens power from a stable distance power in the
upper portion of the lens through a progressive zone to a stable near vision portion in the lower
area of the lens.
‫تغير‬ ‫يوجد‬‫نحو‬ ‫العدسة‬ ‫لقوة‬ ‫مستمر‬‫األسفل‬‫من‬‫منطقة‬ ‫عبر‬ ‫العدسة‬ ‫من‬ ‫العلوي‬ ‫الجزء‬ ‫في‬ ‫ثابتة‬ ‫مسافة‬ ‫قوة‬‫متدرجة‬‫إلى‬‫ا‬‫لجزء‬
‫في‬ ‫القريبة‬ ‫للرؤية‬ ‫الثابت‬‫العدسة‬ ‫من‬ ‫السفلية‬ ‫المنطقة‬.
Distance
Progressive Zone
Near Vision
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

6. » A lens designed for presbyopia with power gradually increasing from the distance zone,
through a progression (Umbilical line) to the near zone.
Trifocal Line Multifocal - Umbilical Line
‫مصممة‬ ‫عدسة‬‫مع‬ ‫العمري‬ ‫النظر‬ ‫لطول‬‫ا‬ً‫ي‬‫تدريج‬ ‫القوة‬ ‫زيادة‬‫من‬‫خالل‬‫السري‬ ‫الممر‬ ‫في‬ ‫التدرج‬Umbilical (IP)
‫البعيدة‬ ‫الرؤية‬ ‫منطقة‬ ‫من‬DP‫إلى‬‫المنطقة‬‫القريبة‬ ‫الرؤية‬NP
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

7. » The rate of change in cylinder power away from the progressive corridor increases as the length
of the progressive corridor decreases
‫يزداد‬‫معدل‬‫التغيير‬‫في‬‫قوة‬‫التشوهات‬‫األسطوانية‬‫الطرفية‬‫ًا‬‫د‬‫بعي‬‫عن‬‫الممر‬‫مع‬‫انخفاض‬‫طول‬‫الممر‬‫التدريجي‬
Plano Add +2.50
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

8. » The rate of change in cylinder power away from the progressive corridor increases as the Add
power of the lens increases
‫يزداد‬‫معدل‬‫التغيير‬‫في‬‫قوة‬‫التشوهات‬‫األسطوانية‬‫الطرفية‬‫ًا‬‫د‬‫بعي‬‫عن‬‫الممر‬‫التدريجي‬‫مع‬‫زيادة‬‫القوة‬‫المضافة‬‫للعدس‬‫ة‬
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

9. Hard Design
‫سريع‬ ‫تصميم‬
Soft Design
‫ناعم‬ ‫تصميم‬
Asymmetrical Design
‫متماثل‬ ‫غير‬ ‫تصميم‬
Symmetrical Design
‫متماثل‬ ‫تصميم‬
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

10. » MONO DESIGN ‫أحادي‬ ‫تصميم‬
- Describe range of power for a given
design ‫معين‬ ‫لتصميم‬ ‫القوة‬ ‫مدى‬ ‫وصف‬
- It classify hard & soft ‫والناعم‬ ‫السريع‬ ‫يصنف‬
- It describe the characteristics of
progressive zone
‫التدرج‬ ‫منطقة‬ ‫خصائص‬ ‫يصنف‬
- Maintain design principles throughout the
range of addition
‫المحافظة‬‫االضافة‬ ‫تغير‬ ‫مع‬ ‫التصميم‬ ‫علي‬
» MULTI DESIGN ‫متعدد‬ ‫تصميم‬
- According to add power lens design
changes
ً‫ا‬‫بناء‬‫التصميم‬ ‫يتغير‬ ‫االضافة‬ ‫قوة‬ ‫علي‬
- It start from soft design for low add power
& as the add power increase it will turn to
hard design
‫غالبا‬‫و‬ ‫منخفضة‬ ‫اضافة‬ ‫لقوة‬ ‫الناعم‬ ‫بالتصميم‬ ‫يبدأ‬‫تصميم‬
‫عالية‬ ‫اضافة‬ ‫لقوة‬ ‫سريع‬
» PRESCRIPTION BASED
‫النظر‬ ‫قياس‬ ‫علي‬ ً‫ا‬‫بناء‬ ‫تصميم‬
- Design by RX ‫بناءا‬‫النظر‬ ‫قياس‬ ‫علي‬
- Design by Add ‫وقوة‬‫االضافة‬
- Near inset position varies
‫ومسافة‬‫القراءة‬ ‫في‬ ‫العينين‬
- Corridor length
‫الممر‬‫سبق‬ ‫ما‬ ‫علي‬ ‫بناءا‬ ‫يتغير‬

11. » Identify patient’s requirements & expectations ‫المريض‬ ‫وتوقع‬ ‫احتياجات‬ ‫علي‬ ‫التعرف‬
» Consider how the wearer uses their lenses ‫للنظارة‬ ‫استخدامهم‬ ‫طريقة‬ ‫االعتبار‬ ‫في‬ ‫االخذ‬
- for most wearers a good modern progressive lens design is the best solution
‫المرضي‬ ‫لمعظم‬ ‫مناسبة‬ ‫الحديثة‬ ‫التصميمات‬
» consider the design that will suit the wearer ‫االستخدام‬ ‫من‬ ‫بالغرض‬ ‫االهتمام‬
- general purpose : balanced fields of view ‫الشامل‬ ‫االستخدام‬:‫للعدسة‬ ‫الرؤية‬ ‫مناطق‬ ‫فيه‬ ‫يتوازن‬ ‫تصميم‬
- mainly for reading : wide near visual fields ‫للقراءة‬:‫اتساع‬ ‫أكثر‬ ‫القراءة‬ ‫منطقة‬ ‫تصميم‬
- mainly for computer : wide intermediate visual fields ‫لالجهزة‬:‫اتساع‬ ‫أكثر‬ ‫فيه‬ ‫التدرج‬ ‫منطقة‬ ‫تصميم‬
Not All Designs Provide Wide Fields of View at Distance, Intermediate and Near.
‫واسعة‬ ‫رؤية‬ ‫مجاالت‬ ‫التصميمات‬ ‫جميع‬ ‫توفر‬ ‫ال‬‫والقريبة‬ ‫والمتوسطة‬ ‫البعيدة‬ ‫المسافة‬ ‫في‬
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

12. Red Marks ‫العالمات‬‫الحمراء‬ = Temporary ‫مؤقتة‬
Black Marks ‫السوداء‬ ‫العالمات‬ = Permanent ‫دائمة‬
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

13. +
CONFIRM FIT ON PATIENT

14. Measuring Tools for Personalization Parameters:
Visioffice
• PDs • PANTO
• FH • DEYE
• VD • WD
• WRAP • H/E
Vscope
• PDs • PANTO
• FH • DEYE
• VD • WD
• WRAP
PD : Pupillary Distance
FH : Fitting Height
• PDs
• FH
• VD
• PDs
• FH
• VD
• WRAP
• PANTO
360 Ruler
• PDs
Pupilometer
Deye : Dominant Eye
WD : Working Distance
H/E : Head Eye
VD : Vertex Distance
Wrap : Wrap Angle
Panto : Pantoscopic Tilt
PD Ruler
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

15. IDENTIFY
PATIENT’S
REQUIREMENTS
Far vision, near
vision and
intermediate
Outdoor, indoor
or sport
EDUCATE HOW
TO USE LENSES
Explain The extent
of the visual fields
The transition
between distance,
intermediate and
near zones
Side-to-side head
movement for
peripheral viewing
CONFIRM
MEASUREMENTS
Power PD, HT and fitting
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

16. DEMONSTRATE VIEWING AREAS ‫الرؤية‬ ‫مناطق‬ ‫تمثيل‬
6m
40cm
60cm
Distance Near
PeripheryIntermediate

17. » Understand the precise complaint ‫الشكوى‬ ‫افهم‬‫بدقة‬
» Remark the lenses ‫للعدسة‬ ‫العالمات‬ ‫رسم‬
» Recheck lens prescription ‫العدسة‬ ‫قياس‬ ‫فحص‬ ‫إعادة‬
» Check the centration of the lenses ‫المركز‬ ‫مالئمة‬
» Validate the wearer’s prescription ‫النظر‬ ‫قياس‬
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

18. SYMPTOM SOLUTION
Wearer has narrow reading area
‫ضيقة‬ ‫القراءة‬ ‫منطقة‬
• Verify fitting height and PD Measurements ‫االرتفاع‬ ‫من‬ ‫التأكد‬
• Verify ADD Power ‫قوة‬‫االضافة‬
• Add pantoscopic tilt and decrease vertex distance ‫والنظارة‬ ‫العين‬ ‫بين‬ ‫المسافة‬ ‫وقلل‬ ‫للداخل‬ ‫االطار‬ ‫اثني‬
Peripheral vision blurs and
moves ‫وتتحرك‬ ‫مشوهه‬ ‫االطراف‬ ‫منطقة‬
• Adjust frame to decrease vertex distance and to increase facial wrap
‫الوجه‬ ‫علي‬ ‫االطار‬ ‫تقوس‬ ‫وزيادة‬ ‫والعين‬ ‫النظارة‬ ‫مسافة‬ ‫تقليل‬ ‫االطار‬ ‫ضبط‬
Wearer lifts head orglasses
to read
‫للقراءة‬ ‫النظارة‬ ‫أو‬ ‫الراس‬ ‫رفع‬
Lenses are fitted too low: ‫االرتفاع‬‫منخفض‬
• Adjust the frame to sit higher ‫اعلي‬ ‫الي‬ ‫االطار‬ ‫ضبط‬
• Raise frame by adding nosepads ‫بالتضييق‬ ‫االنف‬ ‫مساند‬ ‫ضبط‬
• If necessary, re-fit lenses ‫العدسات‬ ‫تركيب‬ ‫اعادة‬ ‫االمر‬ ‫لزم‬ ‫اذ‬
Wearer lowers head or glasses
to look at a distance
‫البعيدة‬ ‫للرؤية‬ ‫النظارة‬ ‫أو‬ ‫الراس‬ ‫خفض‬
Lenses are fitted too high: ‫مرتفع‬ ‫االرتفاع‬
• Adjust the frame to sit lower ‫اسفل‬ ‫الي‬ ‫االطار‬ ‫ضبط‬
• Lower frame by adjusting nosepads ‫مساند‬ ‫ضبط‬‫بفتحها‬ ‫االنف‬
• If necessary, re-fit lenses ‫العدسات‬ ‫تركيب‬ ‫اعادة‬ ‫االمر‬ ‫لزم‬ ‫اذ‬
Wearer moves reading
material off to side for better
focus ‫المقروء‬ ‫الشئ‬ ‫تحريك‬‫للجانب‬
PD is off: ‫مضبوطة‬ ‫غير‬ ‫العينية‬ ‫المسافة‬
• Verify monocular PD measurements ‫االحادية‬ ‫العينية‬ ‫المسافة‬ ‫من‬ ‫تأكد‬
• Have lenses re-made with correct PD measurements ‫جديدة‬ ‫عدسات‬ ‫عمل‬
Distance vision is slightly blurry
ً‫ال‬‫قلي‬ ‫واضحه‬ ‫غير‬ ‫المسافات‬ ‫رؤية‬
For central vision, increase pantoscopic tilt, or slightly decrease fitting height
ً‫ال‬‫قلي‬ ‫التركيب‬ ‫ارتفاع‬ ‫قلل‬ ‫أو‬ ‫البانتوسكوبي‬ ‫إمالة‬ ‫بزيادة‬ ‫قم‬ ‫المركزية‬ ‫للرؤية‬
Wearer sees light sourcesdoubled
‫مزدوجة‬ ‫االضاءات‬ ‫رؤية‬
• Verify astigmatism ‫ق‬‫االستجاماتيزم‬ ‫ياس‬
• If necessary, re-fit lenses with new Anti-reflective coating ‫ريفليكشن‬ ‫االنتي‬ ‫تغير‬ ‫مع‬ ‫جديدة‬ ‫عدسات‬

19. » References
I. System for Ophthalmic Dispensing 3rd edition ,W.brooks, M. Borish
II. Clinical Optics 2nd edition, Theodore Grosvenor
III. Borish’s Clinical Refraction, William J. Benjamin
IV. Fundamentals of Progressive Lens Design, Darryl Miester
V. Progressive Addition Lenses, Essilor Academy
VI. www.opticianonline.net
VII. opticampus.opti.vision
Mohamed Said Ibrahim
mm.Said2004@ymail.Com

20. Mohamed Said Ibrahim
mm.Said2004@ymail.Com