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Early Experience With Anterior Chamber Phakic IOL

Early Experience With Anterior Chamber Phakic IOL. Ahmed El- Massry M.D. Professor of Ophthalmology Alexandria University Egypt. The author has no financial interest in the subject matter of this e-poster. US Status: Investigational device limited by Federal Law to investigational use only.

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Early Experience With Anterior Chamber Phakic IOL

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  1. Early Experience With Anterior Chamber Phakic IOL Ahmed El-Massry M.D. Professor of Ophthalmology Alexandria University Egypt The author has no financial interest in the subject matter of this e-poster. US Status: Investigational device limited by Federal Law to investigational use only

  2. ICARE(Corneal) PMMA (IOL Tech) ZSAL4(Morcher) NuVita MA20(B&L) NewLife (IOL Tech) Kelman Duet (Tekia) Vivarte (Ciba) Refractive Options – Anterior Chamber(Angle Supported )

  3. Design Challenges • Achieve low compression force • Gentle on delicate ocular tissues • Avoid pupil ovalization • Decrease inflammation • Maintain stabilitydespite low compression force • Ensurelow vault response as a function of compression • Critical for safe placement within anterior chamber • Facilitate reliable small incision surgery • Low inflammation and surgical induced astigmatism

  4. Anterior Chamber Ocular Coherence Tomography Optic 2/3 2/3 Bridge Footplate 1/3 1/3 Iris Crystalline Lens Ideal Lens Position in vivo(no iridectomy/iridotomy required) *ZEISS is a registered trademarks of Carl Zeiss AG.

  5. purpose • To evaluate the efficacy, stability , endothelial cell count, visual outcome , higher order aberration changes , IOP and lens position of one type of Phakic IOLs (Cachet produced by Alcon Laboratories) on six month period of follow up.

  6. Methods • A prospective non randomized single center study was done on: - Twenty eyes of high myopes. -That are eligible for anterior chamber phakic IOLs. -Ranged from -10.00 Diopters to -16.50 Diopters. -Anterior chamber depth is not less than 3.5mm. -Endothelial cell count was not less than 2500 cells / mm2 -Age ranged from 26 to 33 years of age . In one eye opposite clear corneal incision was done to correct 1.0 Diopter of astigmatism.

  7. Methods • All cases were operated under general anesthesia in Alex Eye Center in Alexandria, Egypt. • Phakic IOL (Cachet type of Alcon Laboratories) had been inserted for all the 20 eyes. • 12 eyes for females and 8 were males • No intraoperative complication had been reported.

  8. Results • Early results showed Uncorrected visual acuity of 0.8 to 1.0 on Snellen's chart in all eyes day 7 after surgery . • One eye had a spike of increased IOP six hours after surgery and had been controlled by oral Carbonic anhydrase inhibitor drug. • Six months follow up results of endothelial cell count , stability of the IOL, IOP showed non significant changes than preoperative data.

  9. Conclusions • Early results show good visual outcome of the new phakic Cachet IOLs . • Longer period of follow up is needed to evaluate stability and endothelial cell count for this new lens .

  10. Thank you

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