20D  Retina Aspheric lens For slit lamp fundus contact lens--ophthalmic instrument Diagnostic Optometry 

Packaging

Specifications 

Aspheric lens ( for slit lamp ) is used to observe patient's fundus and examine the internal situation of patients' eyes through 

Aspheric lens ( for slit lamp ) is used to observe patient's fundus and examine the internal situation of patients' eyes through their papillary in coordination with slit lamp microscope. It helps doctors to make correct diagnosis of patient's eye diseases and other symptoms.

Magnification ratio: 2.97X 

Static FOV: 50 

Working distance: 47mm 

Clear aperture: Ø47mm 

Dimension: Ø56 X20mm 

Default color: Black,other colors need to customize 

CLEAN:Clean with alcohol wipe. 

DISINFECT:Soak 20 minutes in glutaraldehyde(2% or 3.4% solution), or 10 minutes in 10% bleach solution,mixed 1 part bleach to 9 parts water.Caution: To avoid lens damage,do not exceed recommended exposure times.Rinse with cool or tepid water,3 cycles of 1 minute is recommended.Dry and store in case. 

STERILIZE:Ethylene oxide gas 1 hour at 130F(54C),aerate 12 hours. 

WARNING:NEVER STEAM AUTOCLAVE OR BOIL. 

There are four types of retina lens(20D,78D,90D,90DLR) available.

Maintenance

slit lamp microscope is a kind of sophisticated equipment, typically, the instrument 

should be placed in ventilated, dry environment, no more than 50% of the indoor 

relative humidity, otherwise the surface coating of metal parts and optical parts has 

bad influence.

2, slit lamp show badge mirror lens is the key to ensure equipment normal use, be 

sure to always keep clean.When the lens from dust, dust dust pen of available 

random spare parts will gently brushed;If the lens is smeary, usable degreased 

cotton dips in 60% alcohol and 40% ethyl ether mixture gently wipe, remove the 

oil pollution.

3, optical lens surface to do basin to avoid contact with hands and other body parts, because the body sweat and oil will directly affect the quality on the surface of the 

optical components is the most;If operation is not ao after contact. Just in time to 

wipe clean. To ensure the lens can be used for a long period.

4, instrument of the top of the condenser accumulate dirt easily, desirable under light cover and lamp holder, pen with dust or dirt gently brushed to ensure the quality of equipment in normal work of the light source.

5 a proud, instrument movement at the base of the shaft part should often wipe 

clean keeling outside. And evenly coated with a thin layer of lubricating oil, to keep 

the smooth;Otherwise it is easy to rust or infected with dirt and directly affect the 

flexible operation of instruments

.6, instrument in move, the movement base, slit lamp arm and fastening screw to 

tighten on the arm of the microscope in order to prevent the instrument when 

handling instrument guide or lose instrument focus. Broken equipment.Instrument 

during normal use of the three bolts should be loosen.

7, after using, instrument should be set on the instrument of dust outside leather. 

In order to prevent the instrument from dust and dirt.

8, and optical instruments and spare parts (or attachments) should be stored in the 

containing desiccant drying cylinder.

9, instrument before use, please pay attention to the local power supply is in 

compliance with the instrument for the use of the power supply requirements.

About

We established in 2008, headquarters lies in Shanghai, China. We are committed to providing ophthalmologists and optometrists with high quality products, high quality technologies and high quality services.

Throughout 8 years in business, we have built ourselves as a value-oriented, service minded,ophthalmic equipment and glasses&lens process equipment with reputation. We become “the Chinese state-of-the-art ophthalmic instrument and your practice. There're over 100,000 ophthalmologists and optometrists all over world using our equipments.

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