The lens capsule is a thin, elastic, transparent membrane enclosing the whole lens. It is the thickest basement membrane in the body, and the zonular fibres attach to it.
| Location | Surrounding the lens, behind the iris |
|---|---|
| Parts |
|
| Nerve Supply | None (avascular) |
| Blood Supply | None (avascular) |
Holds the lens and shapes it during focusing; transmits zonular tension.
In cataract surgery the front capsule is opened and the cloudy lens removed, leaving the capsular bag to hold an artificial lens. Clouding of the back capsule later (posterior capsule opacification) is common and is cleared with a quick YAG laser treatment.
Clouding of the capsule after cataract surgery, causing blurred vision, treated with laser.
Flaky deposits on the lens capsule linked to glaucoma and fragile zonules.
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