Page 86 - The Book Pi in eye

Rajesh Khanna, MD

Haloes
Rings around lights are a common early feature of the implants and
is directly correlated to the number of rings. Crystalens has least and
Tecnis the greatest amount. Avoiding looking at headlights, taillights
helps the brain adjusts and finally suppress the haloes.

Shadows
Instead of glare a person sees a dark area. More likely to occur at
edge of optic zone.

Flexed Lens or Z syndrome
Unique to accommodative lenses which require flexing and
movement. It may occur after Crystalens implantation due to fibrosis
and contraction of the lens bag. One arm of the lens gets angulated
forward. The lens can get stuck in a position that causes tilting or
twisting. In early cases, opening the capsular bag, rotation of lens, and
inserting a capsular tension ring helps. In later onset cases selectively
directed YAG capsular opening and relieving tension is the treatment
of choice.

In and Out Lens
When one haptic is in the bag and the other is outside over the
anterior capsule. This causes tilting leading to imperfection, induced
astigmatism, glare and haloes. The lens needs to be implanted
symmetrically in the capsular bag.

Glistening and Scratches
Glistening is more common as seen in Restor acrysof due to
manufacturing process. Scratches can be caused in any lens. They
rarely have visual consequences but could cause glare or haloes.

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