Medical Device & Equipment
An auto-refractor or optometer is an automated instrument used for assessing refraction, providing an alternative to the traditional manual refractive assessment. This automated process is known as refractometry or optometry. Optometry is undertaken for various reasons, including addressing conditions like myopia, hyperopia, astigmatism, presbyopia, as well as for prescribing eyeglasses and contact lenses. These serve as initial references for subjective...
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Country of origin
India
Speciality
Ophthalmic Equipment
Ophthalmology
Brand
Dayal
Justice
Category
Medical Device & Equipment
Ophthalmology
Type Of Product
Refractometer
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See why?Dayal Ophthalmic Refraction Unit with Stool Optical Model
₹89,880
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Dayal Ophthalmic Refraction Unit with Stool Compact Model with Control
₹78,819
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Dayal Ophthalmic Refraction Unit with Stool Compact Model
₹73,287
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Dayal Ophthalmic Refraction Unit with Stool Compact Open Tray
₹84,349
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Dayal Auto Refractometer FA6500 with Motorized Table
₹1,93,588
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Dayal Auto Refractometer FA6800 with Motorized Table
₹1,93,588
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Dayal Auto Refractometer FA6100B with Motarized Table
₹1,82,526
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Dayal Digital Refraction Unit with Stool And Automated Phoropter Arm Kepler - 17
₹2,35,071
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Justice Auto Refractometer with Motorised Table AR 800A
₹1,75,612
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Justice Auto Refractometer with Motorized Table AR-810A
₹1,82,526
Save 7% with MEDISAVE07
An auto-refractor or optometer is an automated instrument used for assessing refraction, providing an alternative to the traditional manual refractive assessment. This automated process is known as refractometry or optometry. Optometry is undertaken for various reasons, including addressing conditions like myopia, hyperopia, astigmatism, presbyopia, as well as for prescribing eyeglasses and contact lenses. These serve as initial references for subjective refraction, aiding ophthalmologists, and optometrists in assessing refractive errors, especially in paediatric and visually impaired populations requiring corrective eyewear.
Refractometers are widely used in various applications, each with specific instrument requirements. These include as mentioned below:
Abbe refractometer- The Abbe refractometer, named after Ernst Abbe, precisely measures the refractive index of liquids based on total internal reflection. It uses prisms, a microscope, and a mirror to locate a light/dark boundary. Results can vary between users due to manual interpretation. Semi-automatic refractometers offer digital displays for more consistent readings but still require manual adjustment.
Handheld refractometers- Handheld refractometers are versatile and easy to use, offering multiple measurement scales. They are used in various applications, from beekeeping to wine production and aquaria. A drop of liquid on the prism is sufficient for determining refractive index, and results are read through the eyepiece. Some models feature Automatic Temperature Correction (ATC) for accurate readings with temperature-compensated liquids.
Digital refractometer- Digital refractometers function similarly to handheld ones but automatically determine and display the boundary line. They provide higher precision, reduced inter-operator variability, and often come with various measurement scales.
Automatic refractometer- Automatic refractometers ensure high precision and eliminate operator variability. They are used in laboratories for precise measurements. Modern models use LEDs as light sources and are equipped with interference filters for accurate readings. They can measure a wide range of samples, including dark and opaque substances, with ease. Automatic refractometers are commonly used in the food and beverage industry for sugar content determination and quality control.
Process refractometer- Process refractometers offer continuous, real-time...