What is a Slit Lamp?

Slit lamp

Table of Contents

A slit lamp functions as a microscope equipped with a high-intensity light, utilized during eye examinations. It allows your eye doctor to closely examine the various components at the front and inside of the eye. This instrument is essential for assessing eye health and identifying eye conditions.

Why is it called a Slit Lamp?

A slit lamp is called so because it uses a thin, focused beam of light that can be adjusted to form a slit. This slit of light helps eye care professionals to examine the eye structures more clearly and in detail during the examination.

What is a Slit lamp Exam?

The slit lamp examination, also referred to as biomicroscopy, is a common diagnostic test. It involves the use of a slit lamp, an instrument that merges a microscope with an intense light source.


Typically included as a component of a thorough eye examination, the patient will sit in front of the slit lamp, placing their chin and forehead against a support. This tool allows the physician to meticulously examine the eyes for any irregularities. The findings can be promptly shared and discussed with the patient.

What Happens During a Slit Lamp Exam?

When you sit in the examination chair, the doctor will provide a support for your chin and forehead on an apparatus to stabilize your head during the exam. Your eye doctor might administer eye drops to highlight any irregularities on your cornea’s surface. These drops contain fluorescein, a yellow dye that is rinsed away by your tears. Additional drops could be used to dilate your pupils, making them larger for better examination.


The doctor will examine your eyes using a low-powered microscope and a slit lamp, which emits a high-intensity beam of light. The slit lamp is equipped with various filters to enable different perspectives of your eyes. Some clinics use technology to take digital images of your eyes, allowing for the monitoring of changes over time.


The slit lamp examination is a crucial part of a thorough eye assessment, providing a detailed view of the internal structures of the eyes.


Conjunctiva: This is a thin, transparent layer that covers the sclera (white part) of the eye and lines the inside of the eyelids, providing a protective barrier.


Cornea: Acting as the eye’s front window, the cornea is a clear layer that covers the iris and pupil. It plays a critical role in protecting the eye and in focusing light that enters the eye toward the retina.


Eyelids: Eyelids serve as protective shields for the eyes, guarding against foreign particles and injuries. Their blinking action spreads tears over the surface of the eye, keeping it moist and free from dryness.


Iris: The iris, which is the part of the eye that has color, functions as a light regulator. It adjusts the size of the pupil to control the amount of light that enters the eye.


Pupil: Located at the center of the iris, the pupil is a black circular opening that permits light to pass into the eye and reach the retina.


Lens: Positioned just behind the iris, the lens focuses incoming light onto the retina to create clear images.


Sclera: Known as the white of the eye, the sclera is made of tough fibrous tissue. It forms the eye’s outer layer, offering support and protection.


Retina: The retina is a layer at the back of the eyeball containing cells sensitive to light. These cells convert light into electrical signals, which are transmitted to the brain via the optic nerve.


What Does a Slit Lamp Test for?

A slit lamp test is a procedure used by eye care professionals to examine the eye’s anterior segment, which includes the cornea, iris, and lens. It helps in diagnosing various eye conditions such as cataracts, glaucoma, macular degeneration, and other eye diseases. The slit lamp exam allows the eye care provider to get a detailed view of the eye structures to detect any abnormalities or issues that may be present.

What is Slit Lamp and its Uses?

A slit lamp is a specialized microscope used by eye care professionals to examine the eye’s anterior segment, including the cornea, iris, and lens. It is commonly used to diagnose eye conditions such as cataracts, glaucoma, macular degeneration, and other eye diseases.


The slit lamp exam provides a detailed view of the eye structures, enabling the eye care provider to detect any abnormalities or issues that may be present.

Slit Lamp Product for Eye Examination

Mediworks Digital Slit Lamp

Digital Slit Lamp

The Mediworks Digital Slit Lamp S390L merges traditional slit lamp examination with digital imaging technology, offering unparalleled clarity and detail in eye examinations. 


It features high-resolution optics and a digital camera for capturing and analyzing eye conditions. Designed for both anterior and posterior segment analysis, its ergonomic design ensures user and patient comfort. Ideal for advanced diagnostic needs, it’s a vital tool for enhancing patient care and education in ophthalmic practices.

Rexxam Digital Photo Slit Lamp

Rexxam Digital Photo Slit Lamp

The Rexxam RS 5000 Digital Photo Slit Lamp integrates advanced digital imaging with traditional slit lamp examination, enabling precise, high-resolution documentation of ocular conditions.

It features user-friendly controls, versatile illumination, and magnification options, facilitating detailed anterior and posterior segment analysis. Ideal for diagnostic and monitoring purposes, its ergonomic design enhances comfort and efficiency in clinical settings, making it a top choice for ophthalmologists seeking to elevate their practice with cutting-edge technology.

Lab Medica Systems specializes in importing and supplying slit lamps at latest price in India, essential for eye examinations in healthcare. They offer a variety of models to cater to diverse medical needs, ensuring high-quality and compliance with regulatory standards. Their services extend beyond sales to include installation, training, and technical support, demonstrating a commitment to healthcare professionals’ needs. By staying abreast of medical advancements, they provide technologically advanced and safe medical equipment.

Reach Out