Movement of Retinosope Reflex

There are two ways to explain how does movement of retinoscope reflex happens. 1) aerial image-blurred image orientation/ position on retinoscopist's retina, 2) Secondary Source-Far point location , MR. Always remember 1) the aerial image will be located either in front of or at  behind examiner's eye, and 2) the Far point, MR will be located either in front of or at  behind patient's eye.

Minimum Fitting Height

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Here are the values of minimum fitting height for each of progressive lenses by ILT, ESSILOR dan HOYA.

ILT

Lens Type	Description	Min Fitting Height
Calligraphy-atoral	Aspheric Progressive Free-form Design	14 mm (ES design) 17 mm (S design) 19 mm (C design)
Bravo	One-Fit Progressive Free-form Design	13 mm (ES design) 18 mm (1-Fit design)
Allegro-atoral	Aspheric Progressive Free-form Design	17 mm (N design) 19 mm (D design)
Architec	Deskwork Progressive Free-form Design	16 mm
Shamir Office	Deskwork Progressive Free-form Design	13 mm above 16 mm below
Kidz FM / Kidz FM 50	Progressive for Children Free-form Design	13 mm
Finite C-12	Designed for Small Frames Extra-Short Design	15 mm
General Design	General Use Progressive Spherical FS-Add Design	20 mm
Regular Short Corridor	Wide Intermediate & Near Zones	17mm
High Index Progressive	Aspheric Slim Design, Balance Distance & Near	18 mm

ESSILOR

Lens Type	Description	Min Fitting Height
Varilux IPSEO	Personalised	18mm 21 mm (RFH)
Varilux Physio 360	W.A.V.E Technology Recommended	17 mm 20 mm (RFH)
Varilux Comfort	Sharp Vision at all Distance	18 mm 21 mm (RFH)
Varilux Ellipse	Natural Vision in Small Frame	14 mm 15 mm(RFH)  18 mm (MaxFH)
Adaptar II	Wide Reading Area	18 mm 21 mm (RFH)
Adaptar Petite	Wide Reading Area & Small Frame	15 mm 17 mm (RFH) 19 mm (MaxFH)
Nikon Presio I Trend	The Finest Optics in Spectacle Lenses	17 mm 19 mm (RFH)

RFH-RECOMMENDED FITTING HT

MAXFH- MAXIMUM FITTING HT

HOYA

Lens Type	Description	Min Fitting Height
Hoyalux ID / Hoyalux FD	Integrated Double Surface	Not given
Summit CD / Summit Pro	Spiral Aspheric Lenses	Not given
Hoyalux GP / GS / TACT	Aspheric Lenses	Not given
Stellify PAL Mini	Aspheric Lenses	Not given

Assignment 2: Lens Shapes

Deadline is next tuesday before 5.00 p.m

For your info, this assignment is just an exercise and is not compulsory to submit.

No mark will be given for this assignment.

Assignment 1:ELD

The deadline for this task is on next Thursday before 10.30 a.m.

For your info, this assignment is just an exercise and is not compulsory to submit.

No mark will be given for this assignment.