PHACIC IOL
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Phakic intraocular lenses (PIOLs) are implantable lenses that are surgically placed in the eye without removing the natural lens, allowing light to focus on the retina and improve uncorrected visual acuity. PIOLs are used to correct high myopia or myopic astigmatism beyond the range of laser vision correction. They can be placed in the anterior chamber angle-fixed or iris-fixed, or in the posterior chamber. Candidates for PIOLs must be over 21, have a stable refraction for at least one year, a clear natural lens, myopia not suitable for laser correction, and unsatisfactory vision with other options. The document then discusses different types of anterior chamber and posterior chamber
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2. To elaborate variations of surgical procedure required to manage different situations encountered in secondary PC IOL implantation.
Synopsis:
Secondary PC IOL implantation in aphakics is an established procedure. Variation of surgical procedure are required to manage different situations. The status of posterior capsule may vary from intact to partially deficient or totally absent. Similarly the technique has to be varied from simple implantation to synechiolysis to anterior vitrectomy combined with single or double haptic trans-scleral fixation of PC IOL.This course will present simplified approach to manage secondary IOL implantation.
Presentation Instruction Course
Subspecialty ophthalmology,Cataract
Education Level advance
Course Format lecture
Target Audience general
Course Length 60 minutes
Program englishIOL Selection- What to Ask and What to Tell Patients
This document discusses factors to consider when selecting an intraocular lens (IOL) for cataract surgery. It notes that the patient's visual goals, the surgeon's expertise, and improvements in IOL technology all converge to determine the best IOL choice. Key factors include visual quality, patient expectations and needs, IOL design, and the surgeon's experience. Age-related eye changes and aberrations must also be addressed. Newer "multifocal light" IOLs aim to provide good distance and near vision with fewer side effects compared to traditional multifocal IOLs. The continual goal is high quality vision correction taking into account higher order aberrations like spherical aberration.
Alcon hayderabad premium slide show
This document discusses success with premium intraocular lenses (IOLs) after cataract surgery. It notes that careful patient selection and managing expectations are important but that the primary determinant of patient satisfaction is achieving the desired refractive outcome, which depends on surgeon performance. The discussion emphasizes minimizing surgeon-induced errors through accurate biometry, proper wound construction based on preoperative astigmatism measurements, and precision in lens placement. Multifocal and toric IOLs are described as options to reduce spectacle dependence, while their benefits and risks are outlined. Overall the document stresses the importance of the surgeon generating an accurate refractive outcome to optimize vision and patient satisfaction after cataract surgery.
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PHACIC IOL
- 1. Phakic IOL By Dr. Alshymaa moustafa Ophthalmology specialist
- 2. INTRODUCTION Phakic intraocular lenses (PIOLs) are clear implantable lenses that are surgically placed either in anterior chamber (AC) or posterior chamber (PC) without removing the natural lens, enabling light to focus on the retina for improved uncorrected visual acuity. PIOLs demonstrate high optical quality and potential gain in visual acuity in myopic patients due to retinal magnification. Correction is not limited by corneal thickness or topography; faster visual recovery and stable refraction are expected. As a reversible refractive procedure that preserves accommodative function, PIOL implantation is attractive to both patients and refractive surgeons.
- 3. INDICATIONS The principal indication for PIOLs is correction of myopia or myopic astigmatism beyond the range of laser vision correction (LVC).
- 4. LOCATION Three locations for PIOLs have been described. These include: 1. anterior chamber angle-fixated PIOL. 2. anterior chamber iris-fixated PIOL. 3. posterior chamber PIOL.
- 5. PREREQUISITES FOR PHAKIC INTRAOCULAR LENSES General criteria should be followed for good predictability and safety. These include: 1. Age >21 years; 2. stable refraction (less than 0.5D change for 1 year). 3. clear crystalline lens. 4. ametropia not appropriate for excimer laser surgery. 5. unsatisfactory vision with contact lenses or spectacles.
- 7. ANTERIOR CHAMBER IRIS-FIXATED PHAKIC INTRAOCULAR LENSES Artisan/Verisyse PIOl Artiflex/Veriflex PIOl
- 9. ANTERIOR CHAMBER ANGLE-FIXATED PHAKIC INTRAOCULAR LENSES
- 12. POSTERIOR CHAMBER PHAKIC INTRAOCULAR LENSES
- 14. Thanks