Corneal Transplant Surgery in Burbank & Greater Los Angeles

Picture the cornea as the windshield of the eye. It is the clear, curved dome at the very front, and it does two jobs at once: it lets light in, and it bends that light so the image lands sharp on the retina behind it. For any of this to work, the cornea has to stay perfectly transparent. A car windshield can take a chip or a film of grime and you still see through it well enough to drive. The cornea has no such margin. When it clouds, scars, swells, or warps out of true, there is no lens prescription strong enough to correct for tissue that has simply stopped being clear.

That is the point at which a transplant enters the conversation. It is rarely a first move. It is what comes after glasses, contact lenses, and medical or laser treatment have done everything they can, and the cornea itself is the thing standing between you and usable vision.

Corneal transplantation is also one of the most established procedures in all of medicine. The National Eye Institute notes that corneal transplants are the most common type of transplant surgery, and the Eye Bank Association of America reports that more than 52,000 corneal transplant procedures were performed in the United States in 2025, the most recent year reported. This is well-traveled ground. What has changed dramatically in the past two decades is not whether the surgery works, but how it is done.

What goes wrong with a cornea

A cornea can fail in a handful of distinct ways, and the way it fails largely decides which transplant you would need.

• The inner cell layer wears out. The back of the cornea is lined with a single layer of endothelial cells that work like a pump, drawing fluid out so the cornea stays dry and clear. These cells do not regenerate. When too many are lost, most often to Fuchs' endothelial dystrophy (an inherited condition) or to swelling after earlier eye surgery, fluid pools, the cornea fogs, and vision goes hazy, typically worst first thing in the morning.
• The cornea scars. Deep infection, trauma, or a chemical burn can leave dense scar tissue that light cannot pass through cleanly.
• The cornea changes shape. In keratoconus, the cornea thins and bulges into a cone, distorting vision in a way glasses eventually cannot fix. Not every keratoconus eye needs a transplant. Many are stabilized earlier with corneal cross-linking, and transplant is reserved for advanced cases.
• A previous graft has failed. Earlier transplants can be redone when they stop working.

Pinning down which layer is damaged is the whole game, because modern corneal surgery is increasingly about replacing only the part that has failed rather than the entire cornea.

PKP, DSEK, and DMEK: three different operations

For most of the twentieth century there was one corneal transplant: take out the full thickness of the cornea, sew in a donor replacement. Today there are three principal approaches, and they are genuinely different operations with different recoveries. Here is how they line up.

• PKP, or Penetrating Keratoplasty (full-thickness transplant). The original procedure, and still an essential one. The surgeon removes the entire central cornea and replaces it with a matching disc of donor tissue, anchored by very fine sutures. PKP is the right call when damage runs through every layer: dense full-thickness scarring, advanced keratoconus, or a cornea too compromised for a partial graft. It is the most involved of the three and carries the longest recovery, but for the eyes that need it, nothing else will do.
• DSEK, or Descemet Stripping Endothelial Keratoplasty (partial, back-layer transplant). When only the inner pump layer has failed, there is no reason to discard the healthy front of the cornea. DSEK replaces just the diseased endothelium, transplanting a thin wafer of donor tissue along with a slim supporting layer. The eye keeps most of its own structure, so vision returns faster than after PKP, and the incision is far smaller.
• DMEK, or Descemet Membrane Endothelial Keratoplasty (the thinnest, most refined partial transplant). DMEK takes the same idea as DSEK and refines it further. It replaces only the endothelial cell layer and its ultra-thin natural membrane (a single layer of cells on its natural membrane) with nothing extra added. Because the graft is so minimal and matches the eye's own anatomy so closely, DMEK offers the fastest visual recovery of the three and the lowest rejection risk, and for Fuchs' dystrophy and similar endothelial failure it has become the preferred graft at centers that perform it.

The research is what earned DMEK that standing. In a large ten-year study of corneal transplants for Fuchs' dystrophy, DMEK reached 20/40 vision or better in a median of roughly 7.8 months, with an estimated 93% probability of getting there within five years, and it carried the lowest rejection rate of the techniques studied. The honest counterpoint, from that same study, is that full-thickness PKP held the best ten-year graft survival — which is exactly why no single technique is automatically "best." DMEK is best for the right eye.

Which of these Dr. Tuli performs

Dr. Tuli performs PKP and DSEK. She does not perform DMEK.

We have described all three because you will meet all three while researching, and you deserve to understand what separates them rather than discover the distinction after the fact. If your cornea is one that would be better served by DMEK, she will tell you so and see that you get to a surgeon who performs it. The point of a cornea-fellowship exam is to identify which operation your eye actually needs — not to steer you toward the one that happens to be on offer.

Recovery is gradual, and we will say so plainly

This is the part of corneal surgery that tends to get oversold, so we will not do that here.

A cornea is not a cataract. Cataract surgery often hands back sharp vision within days. Corneal transplants heal on the cornea's own slow clock, and that clock is measured in months, not mornings. There is no version of this surgery where you wake the next day seeing perfectly. Any page that hints otherwise is selling something.

What recovery actually looks like depends on which transplant you had. After DMEK or DSEK, you usually spend the first day or two positioned mostly face-up, because an air or gas bubble is holding the new tissue against the back of your cornea while it seals into place. Useful vision often begins returning over the following weeks, sooner than most people expect from the word "transplant," and keeps refining for months. After PKP, the timeline runs longer still. The fine sutures may stay in for many months, sometimes beyond a year, and your prescription can keep shifting as the cornea settles; sutures are occasionally adjusted or removed along the way to sharpen the focus.

Across all three, a few constants hold:

• Medicated eye drops for an extended stretch. Anti-rejection steroid drops in particular are not optional, and are often continued long-term, sometimes indefinitely at a low dose. Letting them lapse is one of the most common avoidable causes of graft trouble.
• Activity limits early on, especially anything that could bump or strain the eye.
• A run of follow-up visits, so the graft can be watched closely as it heals.
• Patience. Your final vision is a place you arrive at gradually, not a switch that flips.

Dr. Tuli maps this timeline to your specific eye and procedure rather than to an average, and she would far rather you start with honest expectations than rosy ones.

Graft rejection: name it, and know the warning signs

Because donor tissue is involved, a corneal transplant can be rejected. That means your immune system begins treating the new tissue as foreign and attacking it. This is the single most important thing for any transplant patient to understand, so we will name it directly rather than tuck it away.

Two facts sit side by side. First, rejection is uncommon, and the rate depends on the technique; in the ten-year study above, DMEK carried the lowest rejection rate at roughly 10%, with full-thickness PKP near 13% and the thicker partial-thickness DSEK highest at about 19%. Second, when rejection does start, catching it early often means it can be reversed with prompt treatment, while catching it late can mean losing the graft. The gap between those two outcomes frequently comes down to one thing: how fast you call.

So commit the warning signs to memory. An easy way to hold them is the word RSVP:

• R, Redness. A newly red eye.
• S, Sensitivity to light. Light that suddenly bothers you more than it used to.
• V, Vision change. Any drop or blur in the vision you had regained.
• P, Pain. New or increasing discomfort.

Notice even one of these after a corneal transplant and you contact Tuli Eye Care Center right away, not at your next scheduled visit. Rejection treated early is often manageable. That is precisely why we teach you these signs before you ever leave with a new cornea.

Why a cornea-fellowship surgeon matters here

Corneal transplantation is a subspecialty within ophthalmology, not a general procedure, and choosing the right operation turns on fine details of your cornea that take fellowship training to read correctly.

Dr. Suhas Tuli is a board-certified ophthalmologist with over 30 years in practice whose fellowship training is specifically in cornea and refractive surgery, completed at the Wilmer Eye Institute at Johns Hopkins and the Doheny Eye Institute at USC. Corneal disease is not one line item on a broad menu for her. It is the field she trained in at the deepest level. She is a member of the American Academy of Ophthalmology and the American Society of Cataract and Refractive Surgery, and she has been recognized as a Castle Connolly Top Doctor.

Beyond steady hands, that depth of training shows up as honest matching. A surgeon schooled at the level of the cornea can tell you when a refined partial transplant is the smarter path, when a full-thickness graft is genuinely the only sound option, and when the right next step is not surgery at all. On a procedure that heals over months and that you will help safeguard for years, that judgment is the part worth seeking out.