Clear Lens Extraction Myopia Workup

  • Author: Mounir Bashour, MD, CM, FRCS(C), PhD, FACS; Chief Editor: Hampton Roy Sr, MD   more...
 
Updated: Dec 1, 2011
 

Laboratory Studies

The usual preoperative workup as for cataract extraction is recommended.

Protocol varies from facility to facility and may include a chest x-ray, an ECG for patients older than 40 years, glucose and electrolyte studies, and a CBC count.

If patients are on blood thinners, prothrombin time (PT)/active partial thromboplastin time (PTT) or bleeding time may also be ordered.

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Imaging Studies

  • A-scan biometry and IOL Master are recommended to determine the best power of IOL to be placed.
  • Using indirect ophthalmoscopy, a detailed examination of the peripheral retina must be undertaken, especially in patients with high myopia, to look for abnormalities (eg, lattice, holes, tears).
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Other Tests

See Lab Studies.

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Contributor Information and Disclosures
Author

Mounir Bashour, MD, CM, FRCS(C), PhD, FACS  Assistant Professor of Ophthalmology, McGill University; Clinical Assistant Professor of Ophthalmology, Sherbrooke University; Medical Director, Cornea Laser and Lasik MD

Mounir Bashour, MD, CM, FRCS(C), PhD, FACS is a member of the following medical societies: American Academy of Ophthalmology, American Association for Pediatric Ophthalmology and Strabismus, American College of International Physicians, American College of Surgeons, American Medical Association, American Society of Cataract and Refractive Surgery, American Society of Mechanical Engineers, American Society of Ophthalmic Plastic and Reconstructive Surgery, Biomedical Engineering Society, Canadian Medical Association, Canadian Ophthalmological Society, Contact Lens Association of Ophthalmologists, International College of Surgeons US Section, Ontario Medical Association, Quebec Medical Association, and Royal College of Physicians and Surgeons of Canada

Disclosure: Nothing to disclose.

Coauthor(s)

Pierre E Demers, MD  Regional Medical Director, Lasik MD Centers in Quebec; National Director of Professional Services, Lasik MD; Former Assistant Professor of Ophthalmology, University of Montreal, Canada

Disclosure: Nothing to disclose.

Specialty Editor Board

Daniel S Durrie, MD  Director, Department of Ophthalmology, Division of Refractive Surgery, University of Kansas Medical Center

Daniel S Durrie, MD is a member of the following medical societies: American Academy of Ophthalmology and Association for Research in Vision and Ophthalmology

Disclosure: Alcon Labs Grant/research funds Independent contractor; Abbott Medical Optics Grant/research funds Independent contractor; Acufocus Ownership interest Consulting; WaveTec Ownership interest Consulting; Topcon Grant/research funds Independent contractor; Avedro Grant/research funds Independent contractor; ReVitalVision Independent contractor

Simon K Law, MD, PharmD  Associate Professor of Ophthalmology, Jules Stein Eye Institute, University of California, Los Angeles, David Geffen School of Medicine

Simon K Law, MD, PharmD is a member of the following medical societies: American Academy of Ophthalmology, American Glaucoma Society, and Association for Research in Vision and Ophthalmology

Disclosure: Nothing to disclose.

Louis E Probst  MD, Medical Director, TLC Laser Eye Centers

Louis E Probst is a member of the following medical societies: American Academy of Ophthalmology, American Society of Cataract and Refractive Surgery, and International Society of Refractive Surgery

Disclosure: Nothing to disclose.

Lance L Brown, OD, MD  Ophthalmologist, Affiliated With Freeman Hospital and St John's Hospital, Regional Eye Center, Joplin, Missouri

Disclosure: Nothing to disclose.

Chief Editor

Hampton Roy Sr, MD  Associate Clinical Professor, Department of Ophthalmology, University of Arkansas for Medical Sciences

Hampton Roy Sr, MD is a member of the following medical societies: American Academy of Ophthalmology, American College of Surgeons, and Pan-American Association of Ophthalmology

Disclosure: Nothing to disclose.

References
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  2. Fernandez-Vega L, Alfonso JF, Montes-Mico R, et al. Visual acuity tolerance to residual refractive errors in patients with an apodized diffractive intraocular lens. J Cataract Refract Surg. Feb 2008;34(2):199-204. [Medline].

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  16. Osher RH. Clear lens extraction. J Cataract Refract Surg. Nov 1994;20(6):674. [Medline].

  17. Ripandelli G, Billi B, Fedeli R, et al. Retinal detachment after clear lens extraction in 41 eyes with high axial myopia. Retina. 1996;16(1):3-6. [Medline].

  18. Seiler T. Clear lens extraction in the 19th century--an early demonstration of premature dissemination. J Refract Surg. Jan-Feb 1999;15(1):70-3. [Medline].

  19. Siganos DS, Pallikaris IG. Clear lensectomy and intraocular lens implantation for hyperopia from +7 to +14 diopters. J Refract Surg. Mar-Apr 1998;14(2):105-13. [Medline].

  20. Sinskey RM. Clear lens extraction. J Cataract Refract Surg. Nov 1994;20(6):673-4. [Medline].

  21. Smith SE. Crystalens gains approval. Cataract & Refractive Surgery Today 2004 Jan;. 4(1):67-8.

  22. Wallace RB 3rd. Multifocal vision after cataract surgery. Curr Opin Ophthalmol. Feb 1998;9(1):66-70. [Medline].

  23. Werblin TP. Barraquer lecture 1998. Why should refractive surgeons be looking beyond the cornea?. J Refract Surg. May-Jun 1999;15(3):357-76. [Medline].

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Comparison of published data on retinal detachment after clear lens extraction.
 
 
 
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