Our Technologies

optical equipment for testing and measuring vision acquity

In the last 20+ years, technology has advanced far beyond we could have ever imagine especially when it comes to medicine. NeoVision knows how important a role equipment plays in diagnosis and treatment accuracy. For this reason we make it part of our mission to invest in the latest, state-of-the-art diagnostic and surgical tech so that we are always providing you with the best available eye care. Furthermore, we only trust our machines to their original manufacturers for any servicing.

If you are ever curious about the equipment we use during your appointment, feel free to ask us about it. Dr. Tandon and our technicians are more than happy to answer any questions you might have. We want your visit with us to be as comfortable as possible.

DGH Scanmate A-Scan

The A-Scan is a type of ultrasound device used for differentiating normal and abnormal eye tissue or for measuring the length of the eyeball. It also helps in determining the refractive power of the intraocular lens implant that is used to replace your eye’s own cloudy lens in cataract surgery.

Automatic Lensometer

An auto-lensometer measures the prescription of eyeglass lenses. A lensometer is also used to accurately mount lenses into their frames as well as for orienting and marking lenses prior to cutting the lenses.

Humphrey HARK 599 Automatic Refractor

An autorefractor is used during an eye examination to provide an objective measurement of a person’s refractive error and prescription for glasses or contact lenses. This is achieved by measuring how light is changed as it enters a person’s eye.

Brightness Acuity Tester

A Brightness Acuity Tester (BAT) is a simple hand-held device that conveniently measures the effects of glare without leaving the exam room.

Tomey TMS-2N Corneal Topographer

Corneal topography is a special photography technique that maps the surface of the clear, front window of the eye (the cornea). The image produced provides a detailed 3D map of the cornea’s shape and curvature which is used to detect corneal diseases, deformities and irregular astigmatisms.

Digital Fundus Camera

A digital fundus camera is used to take an image of the fundus — the back portion of the eye that includes the retina, macula, fovea, optic disc and posterior pole. 

VISX Star S4 Excimer Laser

The VISX Star S4 IR excimer laser system is the latest generation of VISX technology. It incorporates many new and exciting technology features including variable spot beam technology, 3D active tracking, variable spot scanning and iris registration (IR).

Hilco Deluxe Frame Warmer

A Frame Warmer is a professional, durable heater specifically designed for plastic frame glazing and adjustments.

Heidelberg Retinal Tomograph

Heidelberg Retinal Tomography is a diagnostic procedure used for precise observation and documentation of the optic nerve head, essential for the diagnosis and management of glaucoma.

IntraLase Laser

IntraLase is the first blade-free laser technology for performing the first step of the LASIK procedure: creating the corneal flap. IntraLase improves the overall safety profile and visual results of LASIK because it is dramatically less likely to produce seriously thin flaps or extremely thick flaps, events which could lead to devastating complications. 


This device measures the radius of curvature of the cornea before cataract surgery, for pre- and post-LASIK analysis as well as for contact lens fitting.


A microkeratome is a precision surgical instrument with an oscillating blade designed for creating the corneal flap in traditional LASIK surgery.

a direct and an indirect ophthalmoscope side by side

An ophthalmoscope is an instrument that enables a doctor to examine the inside of your eye. With it, a doctor can see the vitreous humor (the jellylike substance in the eye), the retina, the optic nerve, and the retinal veins and arteries. It comes in two types: a direct and an indirect ophthalmoscope.

A direct ophthalmoscope is a handheld device while an indirect ophthalmoscope is a binocular device that is worn on the patient’s head.


A pachymeter measures the thickness of the cornea to detect, assess and track a variety of ocular conditions such as glaucoma, for routine inspections, and prior to refractive procedures.

AMO Sovereign Phacoemulsifier

A Phacoemulsifier is used in modern-day cataract surgery to break up and remove the cloudy lens of the cataract. It employs ultrasound energy to emulsify the nucleus, a vacuum to catch the nuclear material, and irrigation and aspiration for cortex and viscoelastic removal.

Marco PAM-1000 Potential Acuity Meter

A Potential Acuity Meter (PAM) assesses visual acuity through mild to moderate ocular media (cataracts, corneal scar, etc.) to get an idea of what vision would be like if there were no opacities present. This test may be performed prior to cataract surgery.

hilco hx-400 pupilometer

The Pupillary Distance Meter is a hand-held portable instrument that measures the precise inter-pupillary distance to ensure proper lens placement in a frame.

Ellman Surgitron FFPF EMC

Radiosurgery is surgery using radiation, that is, the destruction of precisely selected areas of tissue using ionizing radiation rather than excision with a blade.

The Ellman Surgitron FFPF EMC is a highly reliable radio frequency source that coagulates and cuts soft tissue.


A retinoscope is a device for measuring an eye’s refractive error.

Slit Lamp

A slit lamp is a table-mounted binocular microscope that shines a light into the eye allowing Dr. Tandon to examine the entire eye under high magnification.

Hilco UV 400 Sun Meter

A Sun meter allows Dr. Tandon to measure the transmittance or absorption rate of ultra-violet light in any lens material.

Leica M822 Surgical Microscope

A surgical operating microscope allows a surgeon to view the anatomy of a patient in high magnification, making it possible to clearly see the finest details with very good resolution and contrast.


A tonometer measures the fluid pressure inside your eyes to screen for glaucoma as well as to measure how effective glaucoma treatment is working.

Medtronic Tonopen

The Medtronic tonopen is a portable, hand-held instrument that provides a safe, fast and accurate method of testing intraocular pressure. In an emergency, a tonopen can provide a quick measurement of sudden increases in intraocular pressure.

TRS Automated Refraction System

The Total Refraction System analyzes massive amounts of visual measurement data and computes “the most comfortable visual acuity value” for the patient automatically. The TRS allows patients to simultaneously view their potential Rx options including day and night vision differences, delivering immediate appreciation for their new Rx.

Hilco Value Line Ultrasonic Cleaner

An Ultrasonic Cleaner cleans frames and lenses quickly and thoroughly. This compact device uses ordinary tap water and vibrating sound waves to safely loosen and remove years of dirt, makeup, grime and oil, without heat or harsh chemicals.

The Humphrey 740 Visual Field Analyzer is optimized so patients may be tested using their own glasses (no requirement for trial lenses or eye patches), takes approximately 40s per eye, and produces simplified results interpretations.

On occasion, Dr. Tandon may prefer the Goldmann visual field test rather than the Humphrey. Goldmann visual field perimetry is the preferred method to clinically assess visual fields in patients with low vision or complex scotomas.

WaveScan WaveFront

Like a topographic map of the surface features of a landscape, the WaveScan WaveFront captures the unique imperfections and irregularities in your vision and creates detailed map of your eye’s optical system.

YAG Laser

YAG capsulotomy is a type of laser eye surgery that’s used to treat a specific complication of cataract surgery known as posterior capsule opacification (PCO). This problem is caused by scar tissue forming behind a lens implant after cataract surgery. The complication may occur a few weeks after cataract surgery, but also could take years before it appears.

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