At Pink City Eye and Retina Center, Jaipur, we regularly treat patients with advanced diabetic eye disease, especially Proliferative Diabetic Retinopathy (PDR). One of the most effective tools we use to prevent vision-threatening complications is the Panretinal Photocoagulation (PRP) Laser. Let us explain how this treatment works, step by step, just as we would during a consultation at our clinic.

Step 1: Understanding the Problem

In diabetic retinopathy, elevated blood sugar harms the retinal blood vessels. In advanced stages (Proliferative Diabetic Retinopathy), the eye starts growing new, abnormal blood vessels. These are fragile and prone to leaking, which can cause bleeding (vitreous hemorrhage) or increase pressure in the eye (neovascular glaucoma).

Step 2: The Goal of PRP

The Panretinal Photocoagulation Laser treatment doesn’t aim to improve vision — instead, it helps prevent further vision loss and reduce the risk of serious complications. It does this by shrinking abnormal vessels and stopping new ones from forming.

Step 3: Preparing for the Procedure

When you arrive at Pink City Eye and Retina Center, Jaipur for PRP treatment:

• Our team will check your vision and begin with dilating eye drops to enlarge your pupils

• These drops will cause blurred vision for 4–6 hours, so avoid driving during this period.

• After discussing the details of the procedure, you will sign a consent form.

• In most cases, we will apply a local anesthetic (drops or injection) to reduce any discomfort

We advise diabetic patients to bring food, medications, and a family member if possible, as your visit may take 2–4 hours in total.

Step 4: Performing the PRP Laser Treatment

Depending on your eye’s condition, the laser treatment is done using one of the two techniques:

A. Slit Lamp Laser Procedure (Seated Position)

• You will sit in front of a slit lamp (like during a regular eye exam)

• A special contact lens will be gently positioned on your eye to enhance focus and magnification.

• While you shift your gaze in different directions, the doctor will guide the laser to the retina’s edges.

• Each session typically lasts between 15 and 30 minutes.

B. Laser Indirect Ophthalmoscope (LIO) Procedure (Lying Down Position)

• Used in situations where the retinal view is obstructed or the patient cannot remain upright.

• You will lie on a couch while the doctor wears a head-mounted laser system

• A non-contact lens is used to guide the laser

• Again, the treatment takes 15 to 30 minutes

In both cases, the laser application is precise and controlled, targeting only the damaged areas.

Step 5: Multiple Sessions May Be Needed

PRP is rarely completed in a single sitting. Depending on the disease’s extent:

• 2 to 4 sessions per eye may be needed

• Treatments are spaced over a few weeks

• This staged approach helps reduce discomfort and ensures better healing

Step 6: After the Treatment – What to Expect

• Some discomfort or dull pain in the eye is common; regular painkillers like paracetamol can help

• You may notice light sensitivity or feel like your vision is dim or “dazzled” for a day or two

• Do not drive for at least 24 hours post-procedure.

• A follow-up visit will be arranged for another laser session or an examination.

• We will monitor your retina to ensure the blood vessels have regressed and no new ones are forming