15. PARTS OF THE FRAME
-:FRONT:-
NOSE BRIDGE:-Area between the Rim of two eyes.
TEMPLE:-Portion of frame resting on the ears.
RIM:-Hold or contains the lenses.
LENSES:-Grinded According to patient refractive power.
-:BACK:-
NOSE PADS:-Holds frame by resting on nose.
END PIECE:-Temple attach to frame front at end piece.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
16. TYPES OF NOSE BRIDGE
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
17. TYPES OF NOSE BRIDGE
SADDLE BRIDGE: Smooth curve shape
following contour of nose.
KEY HOLE:- Old fashion come along with nose pad,
rest on side of the nose but not on the crest.
PRE FORMED: Sits directly on the nose.
MODIFIED SADDLE: Same as saddle but nose pad on
the back to bear the weight.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
18. TYPES OF NOSE BRIDGE
METAL SADDLE:-Out dated ,now comes with nose pads
PAD BRIDGE:-Have nose pads which are attached to
frame by pad/guard arms.
COMFORT BRIDGE:-Clear plastic saddle type for metal
frame.
STRAP BRIDGE:-Similar to Comfortable but more
flexible.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
19. TYPES OF TEMPLE IN USE
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
20. TYPES OF TEMPLE
Skull: For Every one and For longer use.
Bends down behind the ear, Follow the contour
of skull.
Library: Who unmount spectacle frequently
Increase the width posteriorly,Hold glass by
pressure on side of head. Also called straight temple.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
21. TYPES OF TEMPLE
Riding bow: For Children and active job person
Curve around the ear, following its contour.
Convertile: Can convert in different shapes
similar to straight temple , can be bent/curved to take
form of a skull temple.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
22. TYPES OF TEMPLE
Comfort Cable:- Similar to riding bow ,Post-ear
portion is made from a flexible coil.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
23. MATERIAL OF THE FRAME
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
PLASTIC METAL
25. PLASTIC FRAME MATERIAL
BAKELITE AND GALALITH:-
First material, Very brittle and hence not in use.
CELLULOSE ACETATE:-
Mostly used Available in Various color/shades.
Easy to adjust for alignment.
CELLULOSE ACETO-PROPIONATE:-
Similar to CA but less colour stability hence
fades easily. More sensitive to heat.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
26. PLASTIC FRAME MATERIAL
CELLULOSE NITRATE(ZYL-ONITE)
Flammable at high temperature. Baned by USA-FDA.
POLYMIDE:-
Nylon base and very strong material.
Good resistance to chemical.
Poor resistance to heat.
OPTILE:-
Thermo elastic material and hence retain memory.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
27. PLASTIC FRAME MATERIAL
CARBON FIBRE:-
Strong but brittle(cold weather), Hypo allergic
and has good shape retention, Not adjustable,
Restrict colour option.
NYLON:-
Strong and flexible, Poor adjustability, used for occasion
wear or sports eyewear.
TR90:-
New generation polymer material.
Ultra light, toughest ,Flexible,high resistence
To chemical and high temp.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
29. METALIC FRAME MATERIAL
GOLD:-
Pure gold (18 Cart) doesn’t corrode. Usually combined
with nickel, Durable and easy to adjust but too costly.
TITANIUM:-
Very strong, lighter and expensive.40% lighter then
ussualy metal frame, can’t repaired or soldering
NICKEL SILVER:-
Made with copper, nickel and zinc, Copper gives
flexibility and nickel the white colour.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
30. METALIC FRAME MATERIAL
MONEL METAL:-
Commonly used, Easily to adjustable and good flexy.
Resistance Corrosion and takes good police.
ALLUMINIUM:-
Strong,durable and light weight,Can’t soldering and
hence joined with screw.
BERYLLIUM:-
Steel grey metal, low cost,resists corrosion, light
weight,strong , flexible and wide range of colour.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)
31. METALIC FRAME MATERIAL
STAINLESS STEEL:-
Nickel free and hence hypoallergenic , Excellent
resistance to corrosion, abrasion and heat.
TICRAL:-
Alloy of titanium, copper & chrome. Light weight and
can be cut bit thicker than titanium
FLEXON:-
Made with 50% titanium and 50% nickel, flexible,
retain its shape , suitable for kids and active lifestyle.
Sharp Vision Centre, Haspura, Aurangabad(Bihar)