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Preface 

Thanks for purchasing and using SLY-100 vision tester. 

 Please read this User Manual carefully before using this device. We sincerely 

hope that this User Manual will provide you with sufficient information to use the 

device. 

Our pursuit is to provide people with high-quality, complete-function and more 

personalized devices. Information in promotional materials and packing boxes is subject 

to changes due to performance improvement without additional notice. Chongqing 

Yeasn Science - Technology Co., Ltd. reserves the rights to update the devices and 

materials. 

If you have any questions during using, please contact at our service hotline: (86-023) 

62797666, we will be very happy to help you. 

 

Your satisfaction, our impetus! 

 

Information of manufacturer 

Name: CHONGQING YEASN SCIENCE - TECHNOLOGY CO., LTD 

Address: 5 DANLONG ROAD, NAN’AN DISTRICT, CHONGQING, CHINA. 

Tel: 86-23 62797666 

 

Содержание SLY-100

Страница 1: ...SLY 100 Vision Tester User Manual Version 1 2 Revision Date 2022 06...

Страница 2: ...d do manual do usu rio www yeasn com en Manual de usuario Enlace de descarga www yeasn com en Kullan m K lavuzu ndirme linki www yeasn com en Manuale d uso Link per il download www yeasn com en Link z...

Страница 3: ...mation in promotional materials and packing boxes is subject to changes due to performance improvement without additional notice Chongqing Yeasn Science Technology Co Ltd reserves the rights to update...

Страница 4: ...Auxiliary Lens 12 6 4 Cross Cylindrical Lens 13 6 5 Rotary Prism 14 6 6 Corneal Aligning Device 15 6 7 Near Point Card 19 6 8 Examination Procedures 19 7 Maintenance 32 7 1 Daily Care 32 7 2 Checking...

Страница 5: ...all sided visual functions accurate and comfortable in measurement Exquisite manufacturing technique with comfortable feel High quality plated film used in all optic lenses Technology and design pate...

Страница 6: ...te Manufact Date of m Serial num CE marki Expiratio Unique D est 16m 13 7 335 4 5k ticked on th ticked well e sticked on turer manufacture mber ing n date Device Ident 2 mm 75mm 5mm Lengt kg he instru...

Страница 7: ...Gross We Humidity identifica Country o Fragile h care Keep dry ging e sticked on eight y range ation of manufact handle with 3 n the packag DIM ture ging M Dim Atm iden Tem This Stac mension mospheric...

Страница 8: ...of lens and do not touch lens by hand The instrument shall not be put in a damp and dusty room All moving parts can be turned in dual direction However care must be taken to do it and do not turn it b...

Страница 9: ...3 Confi figuration 5 Fig 3 Fig 4...

Страница 10: ...attach near point testing mark rod to hanger frame 6 Pupil Distance Knob Used to adjust pupil distance 7 Pupil Distance Scale Used to display pupil distance 8 Vergence Lever Used to adjust corner of d...

Страница 11: ...sed to indicate level direction 19 Rotation Knob Used to adjust astigmatic axis of cross cylindrical lens 20 Cross Cylindrical Lens Used to precisely check astigmatic power and axis 21 Auxiliary Lens...

Страница 12: ...attached to position of near point measuring on this rod 32 Near Point Card Including near point sight mark 33 Dust Cover Use dust cover to cover instrument when it is not in use to protect it from du...

Страница 13: ...hole of mounting handle 2 and fix it with fixing hand wheel 16 Then tighten tightening screw 17 under mounting handle 2 Tightening screw 17 is stored in standard accessories box 34 b Turn leveling adj...

Страница 14: ...nto 31 Secondly put the near point card 32 into 31 and tighten the top screws of the near point rods Fig 8 Thirdly install the 31 onto the 5 tighten the 3 When 31 is out of use lift it up Fig 9 Fig 8...

Страница 15: ...7 until 0 value S is ng or decre ing quickly vely in 3 00D will appear shown it sh 1 b 27 the 6 00D an ens axis kn h range of 0 11 t of the dete ed as S 00 is show displayed asing progr y use stron D...

Страница 16: ...b spherical len ce er Maddox rods Maddox rods 13 the require will appear in Fig 15 the light pat with horizo rism used fo nhole is pro bnormity or ns and sphe s RH Re s RV Re 12 ed symbol n the exami...

Страница 17: ...with exam ons a screw xiliary lens nsure it is p ion of cylin The letter P r axis Whe aligns with 13 ng testing o erical lens or vertical p hite Horiz White Verti and polaro e the auxili mination ap w...

Страница 18: ...rism power For example prism power indicated in Fig 22 is 0 that in Fig 23 means base in 3 prism power and that in Fig 24 means base up 3 prism power The purpose of below markings Indicate the prism b...

Страница 19: ...re pro is positione ured when m correctio e is differen d Table 2 15 position of through the ient s corne 10 aligns w distance is ovided by 2m d on secon spectacle is on value of nt from the s Fig 24...

Страница 20: ...ard line the obtained data is S 11 50D It is known when referring the correction factor in Table 2 that for 11 50D and 5mm distance the correction value should be 0 57 0 68 2 0 62D Thus the actual dio...

Страница 21: ...17 Correction Table 1 When Correction Value of Measured Power is in Plus Region...

Страница 22: ...18 Correction Table 2 When Correction Value of Measured Power is in Minus Region...

Страница 23: ...card from apex of the cornea Fig 28 Select the required sight mark on the near point card Turn the rotating portion along the card center by the finger until the required value appears in the sight wi...

Страница 24: ...point rod holder 5 Fig 9 2 Set the spherical lens power value S and cylinder lens power value C to zero 3 Before examination first set pupil distance Turn pupil distance knob 6 so that pupil distance...

Страница 25: ...6 8 3 are not required 4 Turn cylindrical lens knob 27 to change C value 00 25 50 so every line is seen equally When it is turned to 0 50 the chart is as shown as Fig 32 5 Change S by 0 25D steps by t...

Страница 26: ...p at the drical lens t on of red do a compariso ns axially to e cannot rep of 100 urement of 22 Power t of Testee indrical len shown in Fi Testee to com e better side turn cylindr ot so that p on If w...

Страница 27: ...educe which char estee s pow g spherical p s completed 23 ig 34 with s esult is show wn in Fig 38 son If the D because w creased by 0 If Testee re be between Red Green T recise spher art If the gr e s...

Страница 28: ...Now Testee sees two images of chart one at upper side and one at lower side When asked which image is seen clearest Testee replies the upper one is clearest Then add 0 25D to spherical lens value of r...

Страница 29: ...ure ance Test T otation kno on light at t ne see Fig 4 ig 46 The l o tell when ion scale is 25 eyes Projec er side and e is clearer If both row en with equ ns are seen w eyes Add precision of ement Pr...

Страница 30: ...ntal position Now Testee can see red horizontal line with the right eye and the light spot with the left eye Then using same procedure of a ask Testee when he can see red line and light spot meet whil...

Страница 31: ...ter Method a Turn auxiliary lens knob 21 to P and project the polarizing chart Fig 50 b Unless the patient has phoria four lines seen to the patient will be shown as Fig 50 If the patient has phoria t...

Страница 32: ...ism een dispose tation knob ontal lines ar 0 vertical so oria Afterw es are in the s completed not the pre 28 d as shown m rotation k ed as show 11 so th re disposed that the ver wards adjus e middle...

Страница 33: ...vertical line are equally discernible e Change 50 of both eyes to O Turn the near distance card to show small letters Then ask the patient if letters are clear A proper adjustment is required for S v...

Страница 34: ...s 1 Vergence eyeball movement in different direction Set rotary prism 12 in front of both eyes and place 0 setting in uppermost position To measure adduction of eyeball at far point turn the prism out...

Страница 35: ...is patient s vertical abduction power 6 8 11 Transposition of Prescriptions In Comprehensive Optometry Device myopia astigmatic method is used to carry out fogging measurement However when hyperopia...

Страница 36: ...failure do not disassemble and repair it by yourself please contact your local dealer or manufacturer The company promises to provide the user with the necessary parts list and other related materials...

Страница 37: ...e it with a trial lens cloth and a small amount of absolute alcohol 4 Before optometry wipe the forehead and nose pads with medical cotton and a small amount of absolute alcohol 10 Environmental Condi...

Страница 38: ...e manufacturer The company is only responsible for the impact on the safety reliability and performance of the equipment under the following conditions Assembly addition adjustment modification or mai...

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