Fixation of Subluxated Intraocular Lens

By posted on May 13, 2015 11:13PM
Fixation of Subluxated Intraocular Lens

Fixation of Subluxated Intraocular Lens

Cataract surgery is the most common operation performed by ophthalmologists. Although it has a very high success rate, certain complications may occur. Intraocular lens (IOL) malpositions range from simple IOL decentration to luxation into the posterior segment. Subluxated IOLs involve such extreme decentration that the IOL optic covers only a small fraction of the pupillary space. Luxation involves total dislocation of the IOL into the posterior segment. Decentration of an IOL may be the result of the original surgical placement of the lens, or it may develop in the postoperative period because of external (eg, trauma, eye rubbing) or internal forces (eg, scarring, peripheral anterior synechiae [PAS], capsular contraction, size disparity). Posterior dislocation of an intraocular lens (IOL) is an uncommon complication of cataract surgery and Nd:YAG posterior capsulotomy.

Fixation of Subluxated Intraocular Lens
Fixation of Subluxated Intraocular Lens
  • PCIOL decentration

    • Visual acuity can be compromised by optical aberrations and refractive changes. Slit lamp examination usually does not reveal evidence of inflammation unless contact of a portion of the IOL with the cornea or vitreous prolapse is present.
    • Corneal edema from IOL or vitreous touch can be found. In these cases, CME may be a complication.
    • Vitreous traction can increase the risk of a retinal detachment, while vitreous to the wound can be implicated in endophthalmitis.
  • IOL dislocation

    • The posterior capsule usually has an obvious defect.
    • Zonular dialysis may be present.
    • The IOL may be freely mobile in the vitreous cavity; it may be in apparent contact with the retina; or it may have one haptic attached to the posterior capsule, iris, or ciliary body.

     

 

Source:Medical videos – Free Medical video

Fixation of Subluxated Intraocular Lens

Dr.Ahmed Samir

MD. in Ophthalmology, Faculty of Medicine, Zagazig University, Egypt. Assistant Professor of Ophthalmology ,Zagazig University.

Recently Published Stories

Phacoemulsification of subluxated lens with iris repair

Phacoemulsification of subluxated lens with iris repair

Phacoemulsification of subluxated lens with iris repair The surgical procedure in phacoemulsification for removal of cataract involves a number of

ECCE for Subluxated Hypermature Cataract

ECCE for Subluxated Hypermature Cataract

ECCE for Subluxated Hypermature Cataract A Morgagnian cataract arises when a cortical cataract becomes hypermature. A cortical cataract is an

Phacoemulsification of white cataract

Phacoemulsification of white cataract

Phacoemulsification of white cataract Phacoemulsification (Phaco) is the most common technique used by developed countries. It involves the use of

Snail-track capsulorhexis in intumescent cataract

Snail-track capsulorhexis in intumescent cataract

Snail-track capsulorhexis in intumescent cataract Two-stage continuous curvilinear capsulorhexis helps prevent unexpected radial tears of the initial capsulotomy from high

Cut the zonules and get the rhexis back

Cut the zonules and get the rhexis back

Cut the zonules and get the rhexis back when the edge of the capsulorhexis extends to the jungle of the