All categories
Featured selections
Trade Assurance
Buyer Central
Help Center
Get the app
Become a supplier
(2721 products available)
Ready to Ship
Ready to Ship
Ready to ShipManual
The instrument used for precise vision assessment with better quality, manual portable autorefractometers, can be inexpensive compared to other types. These instruments are known for providing precise measurements, making them very helpful in any medical field. These were some of the old types of equipment, and their price reflects how infrequently they were used. Today, the market is more inclined to automatic versions of these instruments as it is easier to measure the setup time, but there are places where a manual instrument can be used. The cost of manual instruments generally falls in the mid-range of costs, making them affordable for even small clinics.
Auto Refractometer
The instrument is predominately automated, with the patient focusing on the device and pushing the button. These instruments allow the operators to obtain the readings with a very small effort and better accuracy. These versions are more expensive than the paper data collection instruments, which are quite expensive due to their features. Multi-principle measurement types of refraction meters cost more than simple ones, which use one principle only. However, most refractomer's costs are generally in the lower price ranges, making them affordable for even small shops.
Comprehensive Auto Refractometers
Some specialized refractometers measure, such as keratometry readings or pupil size and distance, are also available in an autofocus version. These auto refractometers measure all needed parameters for an optical prescription in one step. These instruments generally have a high price according to their measurements, which is beneficial for ocular departments or contact lens fitting centers. These all-in-one machines may give some cost advantages to clinics who do not want to keep many machines.
Portable Auto Refractometer
ARV precision portable auto refractometers are just the advanced technology versions of the autorefractometers, which are well known for their small and light weight. Because these are compact, they can easily be carried around for field work, and the convenience factor is significant, even among doctors who visit patients for health checks. The smaller machines are generally more expensive than the conventional autorefractometers due to the new technology; however, they are very useful for traveling ophthalmic doctors and health workers in remote areas.
Key specifications
ARV digital metres are known for their differing characteristics. The principal items to be measured are accuracy, refraction ranges, and keratometry, astigmatism accommodation, and pupil size to check. While all specifications are preferable to be present in the refractometer, the most critical specifications are at least the distance of approximately six diopters convergence and the accuracy of around plus or minus a half diopter. Many portable types also include other measurements, such as corneal curvature, intraocular pressure, etc. Optometrists who want to take more readings with one instrument prefer these autorefractometers.
Health of the device
The portability indicates that the instrument can be used in fieldwork, which requires tough operational endurance. Since it is usually encased in compact coverings, the refractometer is not damaged if it is taken to different locations. However, severe environments may affect measurements, such as the humidity and temperature factors that affect the readings. Periodic calibration is necessary to maintain the instrument's accuracy. A portable auto refractometer is ideal for field consultants, though careful storage and use are necessary for its durability and accuracy.
Maintenance and care
It is essential to ensure proper maintenance of the portable auto retractor if one expects long-lasting and accurate performance from it. It is paramount to keep the device away from moisture and extreme temperatures. One should cover the instrument to avoid dust and foreign materials on the lens when not in use. Optical lens cleaners, which are dry cloths, must be used to avoid scratches on the lens. The device should be sent for calibration at the given period or by the manufacturer when the readings appear to be irregular. The absence of batteries in many models dispels the need for frequent battery checks, and if batteries are in use, they should be replaced on time so that there is no disruption in performance. The autorefractometer is portable, and routine maintenance is want to assure the equipment gives accurate results for a long time.
Ophthalmology Clinics
Ophthalmic clinics use these instruments for highly accurate and quick refractions. These aparatus are useful for making the traditional techniques of refraction obsolete by providing a mechanized means of obtaining refractive measurements in a few seconds. The autorefractometers measure distances and give the physician the ability to obtain accurate numbers without any errors during the examination. In large volume practices, the most used type of machine is the one that measures automatically, its efficiency and accuracy making it very helpful in such conditions. With portable types, physicians can get the measurements without moving the patients who cannot travel for treatment.
Optical Retail Stores
These are available in locations that require quick prescriptions to ensure their availability to the customer. These instruments, available with minimum waiting time for the optometrist, give optimum customer service. By having auto-refractors in stock, optical retailers provide instant vision assessments and increase the sales of prescription eyewear. ARV autorefractometers can measure near and provide digital measurements. These refractometers help the retailers fulfill their customers' requirements promptly, providing efficiency in order placing at retail outlets.
Mobile Eye-Care Units
The small size and light weight of the auto refractometers make them suitable for mobile eye care units. These machines are widely used in regions where eye care services are provided through vehicles, such as communities, rural areas, or areas where mobile eye care programs may be used. An objective measure of the refraction enables the provision of eyeglass prescriptions on the same day by these machines. Programs that provide eye care services and have portable auto refractometers help reduce the distance and time taken to reach the optical clinics.
Vision Screening Campaigns
Vision screening campaigns facilitate portable auto refractometry to carry out large-scale community-based screenings. These campaigns aim to provide vision screening services to large populations, such as school-based or community health program based campaigns. The portable instruments work well for mass screening programs for kids and adults. Parents and teachers may be given the prescription for eye care or eyeglasses from these readings. Instrument portability enables eye care service delivery in emergency and industrial areas, satisfying the criteria and the demand.
Technology and Features
There is a direct relationship between the price of portable auto refractometers and the technology used in them. The autorefractometers use advanced technologies, such as wavefront sensing and open-field measurements, and measure several parameters, such as corneal curvature and pupillary distance. These machines tend to be more expensive because they have features that are attractive to premium clients, whereas basic refractometers attract entry and mid-tier clients.
Brand Reputation
Brand prestige plays a role in how much items are sold on the market. The companies which have made a name for themselves in the optical instruments market attract more capital because they have built trust by providing accuracy, quality, and good customer care. When selecting instruments, clinics pay more for the proven brand's autorefractometers due to their technology and reliability. However, some new entrants also offer good devices at a lower cost.
Measurement Accuracy and Range
The scope and accuracy of the measurement also affects the cost. More sophisticated refractometers offer a wider range of refractive errors and can take more accurate measurements. For example, instruments capable of measuring myopia and hyperopia with high precision are more expensive, while those with simple measurement faculty are cheaper. Clinics that intend to provide high standard services will purchase these high-quality instruments.
Durability and Build Quality
Instruments used in portable auto refractometry have to be very strong. Using strong materials with casing to make them shockproof ones, such as portable versions of auto refractometers, tends to be more expensive as it is put through stress and strain. Portable instruments are used for mobile eye care, and they must protect the elements, hence the sturdy constructed instruments.
Accessories and Consumables
The cost of portable autorefractometers often includes the additional items or packages that come with them, such as printer attachments, carrying cases, and software for data capturing. These add-ons make the initial purchase price high but are helpful in reducing the future costs. Keeping the additional cost in mind, clinics make a choice depending on their expectation of the future expenses.
A1:Auto refractometers measure the refractive error by emitting light onto the eye. Then the eye's response to the light is evaluated with the help of internal sensors and software to give the measurement. Most instruments measure spherical equivalents, astigmatism, and other parameters with high accuracy.
A2:All the refractometers and the instruments which are portable are designed to provide refractive measures with the help of small size and weight. It makes them ideal for work in the field, such as eye care units that move or visit rural areas. Still, autorefractometers help provide accurate measures of vision without much effort and time compared to traditional techniques.
A3:Regular cleaning, protection against moisture and dust, lens cover usage, and regular calibration are advised to maintain the apparatus. The temperature extremes should also be avoided to maintain functionality properly.
A4:Yes, portable auto refractometers are made to be used in the field. They are lightweight and compact, which makes them very useful for mobile eye care services. The portable devices are designed to work in various environmental conditions, and their durability makes them convenient for fieldwork.
A5:Key specifications, measurement accuracy, brand reputation, included accessories, and durability determine the price of portable autorefractometers. Advanced features usually increase the cost, while basic models are more affordable.
