OPTOM FASLU MUHAMMED

Safety eyewear has been an extremely important factor in reducing eye injuries.

Eye injuries most often occur because of a failure to wear eye protection.

OSHA Regulates safety eyewear standardsThe occupational safety and health

administration (OSHA).

It would be difficult to list every situation in which eye protection must be worn.

Stating that “protective eye and face equipment shall be required where there is a reasonable probability of injury that can be prevented by such equipment”.

The American National Standards institute has established standard ANSI Z87-1 for safety glasses in the United States, then established elsewhere.

OSHA provides guidance on type of safety eye wear, that should used for a particular application

In a no: of work situations ,workers are cleaning their glasses constantly.

In these situations, plastics and polycarbonate lenses may scratch.

Glass lenses withstand scratching better and will not have to be replaced constantly.

Badly scratched lenses are irritating to wear and, if vision is impaired, may create a safety hazard.

Basic impact thickness requirements

For a number of years, thickness requirements for prescription safety lenses have been a minimum of 3.0mm.

The reason for the exception is because high plus lenses are much thicker in the center.

Therefore these lenses may be thinned to a 2.5mm minimum edge thickness and still remain strong because of their overall thickness.

Basic impact testing requirementsDress lenses are required to withstand the impact of 5-8 inches of steel ball dropped

from 50 inches.

Safety lenses must withstand the impact of a 1 inch steel ball dropped from 50 inches.

WHY SHOULD WE BE CONCERN WITH EYE SAFETY?EYE INJURIES OF ALL TYPES OCCUR AT

THE RATE OF ABOUT 2OOO/DAY

10% TO 20% OF THESE INJURIES RESULT IN TEMPORARY OR PERMENENT VN LOSS.

3 OUT OF 5 PEOPLE WHO RECEIVE SUSTAINABLE EYE INJURIES WERE NOT WEARING EYE PROTECTION.

What are some causes of eye injuries?Flying objects – A survey

conducted by the Bureau of Labor Statistics, found that about 70% of eye injuries were caused by flying debris or falling objects

Contact with ChemicalsMisuse of tools:

improper guards, poor maintenance, poor safety habits

You should always use the appropriate eyewear for the job

Different kinds of eye protectionGlass

Plastic

Polycarbonate

Shielded safety glasses

Goggles

Full Face shields

GlassGlass lenses provide

good scratch resistance

They can withstand chemical exposure

They can accommodate a large number of prescriptions

Plastic and polycarbonateLight weight

Protect against welding splatter

Less likely to fog up

Not very scratch resistant

Will not accommodate prescriptions

Safety glasses should be shieldedShielding provides

better protection from flying debris

It provides protection against chemicals which may be suspended in the air

GogglesGoggles provide

greater protection from splashes, liquids and dusts than shielded safety glasses

They should fit tightly against your face

They provide the best protection against liquid pesticides and other toxic chemicals

Face shieldsFace shields are used

where you have a very high chance of exposure to an airborne substance

A face shield is not enough to protect your eyes by itself; It should be worn with approved safety glasses

Hazard Type Hazard Type Common related tasks

Impact Flying objects such as large chips, fragments, particles, sand, and dirt.

Chipping, grinding, machining, masonry work, wood working, sawing, drilling, riveting, sanding, etc.

HeatHeat Anything emitting extreme heat.

Furnace operations, pouring, casting, hot dipping, welding, etc.

ChemicalsChemicals Splash, fumes, vapors, and irritating mists.

Acid and chemical handling, degreasing, plating, and working with blood.

DustDust Harmful dust. Woodworking, buffing, and general dusty conditions.

Optical Optical RadiationRadiation

Radiant energy, glare, and intense light

Welding, torch-cutting, -brazing, -soldering, and laser work.

Impact Hazards: Safety Spectacles

Safety spectacles are intended to shield the wearer's eyes from impact hazards such as flying fragments, objects, large chips, and particles. Workers are required to use eye safety spectacles with side shields when there is a hazard from flying objects.

Impact Hazards: Safety Goggles Safety goggles are intended to

shield the wearer's eyes from impact hazards such as flying fragments, objects, large chips, and particles.

Goggles fit the face immediately surrounding the eyes and form a protective seal around the eyes. This prevents objects from entering under or around the goggles. 

Impact Hazards: Face Shields

Face shields are intended to protect the entire face, or portions thereof, from impact hazards such as flying fragments, objects, large chips, and particles.

When worn alone, face shields do not protect employees from impact hazards. Use face shields in combination with safety spectacles or goggles for additional protection. 

Heat Hazards: Safety Spectacles

Safety spectacles with side shields are used as primary protection to shield the eyes from heat hazards.

To adequately protect the eyes and face from high temperature exposure, use safety spectacles in combination with a heat-reflective face shield.

Heat Hazards: Safety Goggles

Safety goggles are used as primary protection to shield the eyes from heat hazards. Goggles form a protective seal around the eyes, preventing objects or liquids from entering under or around the goggles. This is especially important when working with or around molten metals that may splash. 

Heat Hazards: Face Shields

Heat-reflective and wire-screen face shields are intended to shield the entire face from a range of heat hazards.

Face shields are considered secondary protectors to be used in addition to primary protection such as safety spectacles or goggles.

Chemical Hazards: Safety Goggles

Safety goggles protect the eyes, eye sockets, and the facial area immediately surrounding the eyes from a variety of chemical hazards. Goggles form a protective seal around the eyes, preventing objects or liquids from entering under or around the goggles.

Chemical Hazards: Face Shields

Face shields are intended to protect the entire face from a variety of chemical hazards.

All face shields are considered secondary protection and must be used in addition to safety goggles to provide adequate protection.

Dust Hazards: Safety Goggles

Goggles form a protective seal around the eyes, preventing nuisance dust from entering under or around the goggles. Ventilation should be adequate, but well protected from dust entry.

Optical Radiation: Filter Lenses Wearing protection with the

correct filter shade number is required to protect workers’ eyes from optical radiation. When selecting PPE, consider the type and degree of radiant energy in the workplace.

Optical Radiation: Welding

Welding helmets are secondary protectors intended to shield the eyes and face from optical radiation, heat, and impact. Use welding helmets in

addition to primary protection such as safety spectacles or goggles to provide adequate protection. 

strong unpleasant light that disturbing normal vision

Optical Radiation: GlareControl Glare with:Special-Purpose Spectacles that include filter or special-purpose lenses to provide protection against eye strain.Changes in your work area or lightingTinted eyeglass lenses or visor-type shade

 

A

Safety Glasses & Face ShieldsRequired whenever there is

a hazard from flying objects, acids, caustic chemicals, fertilizers, pesticides, solvents, molten metal and hot water.

ONE DESIGN DOES NOT PROTECT FROM ALL HAZARDS.

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Tips to protect your eyes Wear goggles or a face shield

around flying chips or particles, electrical arcing or sparks, chemical gases or vapors, harmful light liquid chemicals, acids, or caustics, molten metal, dusts, or swinging objects like ropes or chains

Turn containers away from the face when opening

Remove protective eye wear only after turning off the tool

Outdated or scratched prescription lenses can distort vision

Replace cracked, pitted or damaged goggles or glasses

Concentrate on task at hand when using power tools

Stop and relax the eyes if they are becoming strained

Be certain that protective eye wear is approved for the hazardous environment you are in

Keep sharp or pointed objects away from the face and eyes

What to do in case of an eye injury If you get dust, a wood chip or another small particle in your eye, look down and flush it out with eyewash solution. Use water if eyewash solution is not available

If a pesticide gets into your eyes, immediately use a portable eye flush dispenser or call for help if needed to get to an eyewash station

Flush your eye with eyewash solution for 15 minutes. Have someone call for medical attention while you are flushing

The Material Safety Data sheet and label will give first aid instructions

Remember:Safety Glasses WORK!!SO USE THEM!These glasses saved the

vision of a laboratory worker. He was using a small amount of an unstable chemical. The flask containing the chemical exploded. His eyes were without injury.

REFERENCEWWW.OPTOMETRY .UK .INSYSTEM FOR OPHTHALMIC DISPENSING

PROFICIENCY TEST1.What is the name of instrument used to check

to see if a glass lens has been heat treated?AlphascopeBetascopeColmascope Deltascope

The correct ophthalmic terminology for eye wear used daily

Casual eye wearEvery day eye wearFormal eye wearDress eye wear

Which lens is most likely to break?An unscratched lensA lens that has been scratched on the front

surfaceA lens that has been scratched on the back

surfaceAll lenses are equally likely to break

What are basic-impact safety eye wear minimum thickness?2.0 mm2.2mm3.0mm4.0mm

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