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What Every Patient Should Know About Eye Care Investigations

Eye care is important to our general well-being and regular eye checkups are vital in maintaining optimal eyesight. At Vasan Eye Care Hospital, we offer a variety of comprehensive eye checks to keep your eyes fit. Understanding these investigations empowers you to take proactive steps towards preserving your vision as well as dealing with potential eye issues in good time. 

Below is what you need to know about these investigations.

An eye care professional conducting a thorough eye investigation on a patient using specialized equipment.

Refraction Test

A refraction test or vision test helps determine the prescription for eyeglasses or contact lenses. This simple examination tells us if you have any refractive errors like nearsightedness or farsightedness and ensures that you get the correct corrective lenses for sharp vision.



Corneal topography is a specialized test that maps the surface of your cornea. It assists in diagnosing corneal irregularities and guiding treatment for conditions such as astigmatism and keratoconus. 



B-scan ultrasonography is a non-invasive tool used to evaluate the posterior segment of the eye. Retinal detachment, cataracts, and tumors among others are some of the various eye defects that this technique can diagnose. The B-scan allows imaging of structures not seen during an ordinary routine eye examination.



Biometry involves measuring the length of your eye and the curvature of your cornea. This information is critical to calculating appropriate intraocular lens power for cataract surgery. In this regard, accurate biometry will enhance adequate visual outcomes following surgery.



A-scan ultrasound biometry measures your eyeball’s length. It determines how strong a lens implant should be before cataract surgery takes place. This gives accurate measurements required in order to achieve the best possible sight post-surgery.


Ocular Coherence Tomography (OCT)

OCT is a non-invasive imaging test that provides detailed images of the retina. It aids in diagnosing and monitoring conditions such as macular degeneration, diabetic retinopathy, and glaucoma. Detection of early diseases of the retina with personalized management is enabled through OCT.


Specular Microscope

Specular microscopy is used to examine the corneal endothelial cells. It helps assess corneal health and detect any abnormalities that may affect vision. This investigation is very critical, especially for people who wear contact lenses or patients with other corneal diseases.


Intraocular Pressure (IOP) Measurement

IOP measurement plays a major role in identifying or monitoring glaucoma. The non-contact tonometry test that we apply in our facility determines pressure within your eye without having physical contact with it. Early detection of raised IOP can prevent loss of sight due to glaucoma from occurring.


Humphrey Visual Field Analyzer (HFA)

HFA measures your visual field to detect abnormalities associated with conditions like glaucoma. This also helps in judging peripheral vision and observing progress over time.


Fundus Photography

The examination involves taking pictures of the back part of your eye such as the optic nerve or retina. It proves useful in diagnosing a variety of eye problems including diabetic retinopathy, and macular degeneration among others.

It is recommended to have regular eye checkups every six months to ensure early detection and management of any eye conditions. At Vasan Eye Care Hospital, we are committed to providing comprehensive eye care through advanced investigations and personalized treatment plans. Schedule your appointment today and prioritize your eye health!


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