Not every lower lid that sits low was caused by surgery
Scleral show — white visible between the lower edge of the iris and the lower lid — and ectropion, a lower lid that turns away from the eye, are usually discussed as complications of eyelid surgery. That is where most people first hear the words. But both also occur in people who have never had an operation. Some are born with a lower lid that sits slightly away from the eye; others develop it as the lid's supporting tissues weaken with age. Because the condition is mostly discussed in connection with surgery, people who have it naturally may not realise that persistent stinging or watering can have a structural cause worth having examined. This column explains what is within the normal range, what is not, and what the options are.
Where normal ends
Some white below the iris is a normal variant. A millimetre or two is common and, in some faces, part of what makes the eye attractive; among younger patients there is even a trend for a slightly rounded, open lower lid, sometimes called puppy eyes, and a degree of scleral show is occasionally created on purpose. So the presence of white alone is not a diagnosis. ST treats it as a condition to correct only when it causes symptoms or when the person wants a change in appearance. The symptoms are the ones a lid away from the eye produces: dryness, stinging, redness, and tears that pool and spill, enough to interfere with reading, working at a screen, or holding a conversation without dabbing the eyes. Without symptoms, and without a wish to change how the eye looks, there is nothing to fix.
| What you see | Usually | Treatment needed? |
|---|---|---|
| About 1–2 mm of white below the iris, no symptoms | Normal variant | No |
| More white than that, no symptoms, you are happy with it | Mild scleral show | Not necessarily |
| Lid lifts off the eye when you smile or look up; watering, stinging | Lax lower lid, intermittent | Consider assessment |
| Lid visibly away from the eye at rest, red lining showing, persistent dryness | Ectropion | Assessment recommended |
How to look at your own eyes
Stand in front of a mirror, relax, and look straight ahead. Check whether the lower lid sits against the eyeball along its whole length, or whether there is a gap where you can see the red inner lining. Then smile, look up, and look down, and watch whether the lid lifts off the eye with movement; in some people the lid sits normally at rest and separates only with expression. Compare the two sides: it is common for one eye to be more affected than the other. Finally, try the snap-back test — pull the lower lid gently down and release it. A well-supported lid returns at once; a lax one returns slowly. None of this replaces an examination, but it gives you something concrete to describe.
Why some lower lids sit away from the eye
The lower lid is held against the eye by a sling: the muscle around the eye, the ligaments at each corner, and the firm plate inside the lid margin. When the sling is weak, the lid drops and tilts outward. In younger patients, naturally less firm skin and connective tissue may contribute, so the lid lacks the tension to stay fully in place. In older patients the sling loosens with age. The shape of the face contributes too: when the bone beneath the eye sits further back, the lid has less to rest on, and when the eye itself sits further forward, the lid has further to reach. Often several of these factors combine.
Treatment: step by step, matched to the cause
There are several techniques, and the choice follows the cause and the severity. Tightening the lid at the outer corner suits a lid that is lax mainly at that corner. A lid that has lost tension along its length can be shortened and tightened; ST uses a pentagon-shaped wedge technique. A lid that sits too low needs internal support, commonly a graft of mucosa from the roof of the mouth placed on the inside of the lid, which acts as a strut. Skin grafts are reserved for cases with an actual shortage of skin. These can be combined, and they can be staged: start with the simplest method that matches the problem and progress only if it falls short. Grafted tissue can contract as it heals, so in some cases the first operation does not fully reach its goal and a further procedure is needed. The aim of all of these is to return the lid to a normal position rather than to reshape the eye, although tightening can alter the shape of the outer corner and results vary.
If you are also thinking about double eyelid or upper lid surgery
This is where an untreated lower lid matters most. Surgery that opens the upper lid makes the eye larger, which exposes more of the eye's surface to air. If the lower lid is already away from the eye, that extra exposure can make dryness worse, and it is harder to shape the eye well when the lower lid is not stable. ST therefore assesses the lower lid before upper lid surgery and, where it needs correcting, either corrects it first or does both in the same session. Doing them together is possible and allows the shape of the eye to be planned as a whole, though combined surgery means more swelling and a longer recovery.
What to bring to the consultation
Describe your symptoms specifically — when the eye waters, whether it stings in wind or on screens, whether you use drops. Bring photographs from earlier years if you can, which show whether the lid has always looked this way or has changed. Mention skin conditions, thyroid eye disease, previous facial injuries, and any eye surgery including LASIK. An ophthalmology review may be advised alongside the plastic surgery assessment when the eye surface is already irritated. All surgery carries risks, including asymmetry, under- or over-correction, a change in eye shape at the outer corner, dryness, scarring, discomfort at the donor site where a graft is taken, and the need for further treatment; results vary between individuals.