115 results match your criteria: "Myopia Clear Lens Extraction"

Clear lens extraction and intraocular lens implantation to correct extreme myopia after retinopathy of prematurity.

J AAPOS

December 2024

Department of Ophthalmology and Visual Sciences, University of British Columbia, Vancouver, Canada, and Department of Ophthalmology, BC Children's Hospital, Vancouver, Canada. Electronic address:

We report 3 patients who developed extreme myopia after ROP laser treatment. Their subsequent optical correction was problematic, prompting bilateral clear lens extractions with intraocular lens implantation.

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: This study aimed to evaluate the visual outcomes and prognosis after cataract surgery in patients with prior history of Verisyse phakic intraocular lens (pIOL) implantation. : A retrospective cohort study involving 215 Verisyse pIOL implantations and 17 explantations was conducted. The Verisyse pIOL was disenclaved and removed through a superior scleral tunnel incision.

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Refractive Surgery in Myopic Children.

J Clin Med

July 2024

Department of Pediatric Ophthalmology and Strabismus, Medical University of Bialystok, Waszyngtona 17, 15-274 Bialystok, Poland.

In this paper, we summarize the current knowledge on refractive surgery performed in the myopic pediatric population. We describe the main concerns about refractive surgery in myopic children and the indications for refractive surgery in this age group. We present a range of surgical procedures that are being used for the management of unilateral/bilateral myopia in children: corneal refractive surgery (PRK, LASEK, LASIK, FS-LASIK and SMILE) and intraocular refractive surgery (phakic intraocular lens implantation, refractive lens exchange or clear lens extraction), with both their advantages and drawbacks.

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Article Synopsis
  • The study aimed to assess how accurately different IOL power calculation formulas predict the ideal intraocular lens power for patients with a history of laser refractive surgery for myopia.
  • It involved a careful selection of eyes that had undergone successful cataract surgery and compared various formulas, including Shammas and Barrett True-K, using statistical analyses to evaluate their prediction errors.
  • Results showed that the Shammas and Barrett True-K formulas provided the most accurate predictions, while the Wang-Koch-Maloney formula performed the worst in terms of predictive accuracy.
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BCLA CLEAR Presbyopia: Management with corneal techniques.

Cont Lens Anterior Eye

August 2024

Department of Ophthalmology, Aotearoa New Zealand National Eye Centre, The University of Auckland, Auckland, New Zealand; College of Health & Life Sciences, Aston University, Birmingham, UK.

Article Synopsis
  • * Key factors for successful treatment involve evaluating the patient's visual needs, ocular health, and any previous surgeries, alongside strict contraindications for refractive surgery.
  • * Different approaches like laser ablation, corneal inlays, and conductive keratoplasty offer various ways to adjust corneal shape and focus, with recommended follow-up care to monitor the effects and complications after the procedure.
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Practical advancements in phacoemulsification techniques and intraocular lenses and the wide availability of phacoemulsification machines have led refractive lens exchange (RLE) to increase in popularity. Ethical boundaries in RLE have subsequently been pushed to include patients at higher risk of complications. In this editorial, we consider RLE outcomes and complications per type of refractive error, together with preoperative, intraoperative and postoperative ethical obligations for refractive surgeons.

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We report two cases of Alport syndrome and compare the clinical presentations and imaging findings in these cases. The clinical examination consisted of best-corrected visual acuity (BCVA), direct ophthalmoscopy, and slit-lamp examination. Macular optical coherence tomography (OCT) and anterior segment OCT (AS-OCT) and were utilized to document the details of the anterior and posterior segment pathologies.

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Outcomes of Filtering Surgery Versus Clear Lens Extraction in Young Patients With Angle-Closure Glaucoma.

Am J Ophthalmol

February 2024

From the Eye Institute and Department of Ophthalmology, Eye & ENT Hospital, Shanghai Medical College, Fudan University, Shanghai, China (M.L., W.Z., X.F., X.S., X.K.); NHC Key Laboratory of Myopia, Chinese Academy of Medical Sciences, and Shanghai Key Laboratory of Visual Impairment and Restoration (Fudan University), Shanghai, China (M.L., W.Z., X.F., X.S., X.K.). Electronic address:

Purpose: To compare the effect of filtering surgery versus clear lens extraction in young patients with medically uncontrolled angle-closure glaucoma (ACG).

Design: Retrospective, nonrandomized, comparative, interventional study.

Methods: We reviewed the medical charts of patients with the following scenarios: (1) age ≤40 years; (2) diagnosis of ACG without cataract, including primary angle-closure glaucoma (PACG), nanophthalmic ACG, and ACG combined with retinal dystrophies; and (3) ACG undergoing filtering surgery or clear lens extraction.

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We present the long-term results of the implantation of a capsular tension ring (CTR) and Ahmed capsular tension segments (CTS) together for the management of mikrospherophakia in a 35-year-old female patient. The patient had uncontrolled secondary angle-closure glaucoma, despite previous laser peripheral iridotomy, and visual impairment due to lenticular myopia. Clear lens extraction was performed under general anesthesia.

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Aims: The aim of the study was to retrospectively evaluate changes in vision after the implantation of trifocal (tIOL) or rotationally asymmetric multifocal artificial intraocular lenses (mIOL) in patients undergoing clear lens extraction. The main goal was to determine whether changes to central visual acuity occur after the implantation of an IOL at a follow-up examination after one year. Other objectives were to determine the difference between the groups with implanted diffractive and rotationally asymmetric artificial intraocular lenses, as well as to evaluate the risk of accurate correction in patients who had lived most of their lives "undercorrected".

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We aimed to test a novel concept based on multiple IOL-implantation, targeting spectacle independence for patients with high and excessive myopia (26.0 mm < axial length; 6.0 D < refractive error).

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Article Synopsis
  • A 27-year-old woman with a history of childhood strabismus surgery seeks to eliminate her reliance on glasses and contact lenses, presenting with mild exophoria and good visual acuity in both eyes.
  • Her eye examination reveals specific refraction measurements indicating moderate myopia in both eyes, with additional tests showing normal tear production and corneal health.
  • The patient is considering options for vision correction, including corneal refractive surgery or a phakic intraocular lens (pIOL), and is leaning towards the latter for its reversibility.
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Refractive Surgery for Special-Needs Children with High Myopia.

Mo Med

August 2022

Department of Ophthalmology and Visual Sciences, Washington University School of Medicine, St. Louis, Missouri.

Article Synopsis
  • Refractive surgery can help children with severe myopia who don't like wearing glasses or contacts, particularly those with neurodevelopmental disorders and poor vision.
  • For myopia less than 6 Diopters, photorefractive keratectomy (PRK) is the recommended treatment.
  • Children with myopia greater than 6 Diopters may benefit from procedures like phakic IOL implantation, clear lens extraction, or refractive lens exchange, with a low risk of complications.
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Bilateral Isolated Spherophakia in Two Young East European Siblings: A Case Report.

Case Rep Ophthalmol

November 2021

Department of Ophthalmology, Azienda Ospedaliero-Universitaria of Padova, San Antonio Hospital, Padova, Italy.

A 19-year-old Caucasian woman was referred to the emergency room and thereafter to the department of ophthalmology complaining for bilateral decrease of visual acuity and severe pain. A complete ophthalmological evaluation was performed. Best-corrected visual acuity (BCVA) was LogMAR 0.

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New treatment algorithm for keratoconus and cataract: small-aperture IOL insertion with sequential topography-guided photorefractive keratectomy and simultaneous accelerated corneal crosslinking.

J Cataract Refract Surg

November 2021

From the Discipline of Ophthalmology, Sydney Medical School, The University of Sydney, Sydney, Australia (Northey, Moloney); Sydney Eye Hospital, Sydney, Australia (Northey, Moloney); Pacific Laser Eye Centre, Vancouver, British Columbia, Canada (Holland, Lin).

Purpose: To describe a new treatment algorithm aimed at optimizing refractive outcomes for patients with keratoconus and cataract.

Setting: Private practice in Sydney, Australia.

Design: Retrospective case series.

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Chronic Endophthalmitis Caused by .

Case Rep Ophthalmol

November 2020

Retina Division, Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.

A patient presented with complaints of a sudden decrease in vision, ocular redness, and pain in the right eye. The patient had a history of clear lens extraction with intraocular lens (IOL) implantation for myopia 2 years previously. He had been prescribed topical steroids for episodes of inflammation that occurred repeatedly every 1-2 months.

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Purpose: The purpose of this study is to establish the safety of clear lens extraction (CLE) for the correction of high myopia in patients unfit for implantable contact lenses (ICLs) and laser in situ keratomileusis in the central Indian population.

Methods: In this retrospective observational study performed at a tertiary care centre, medical records of the patients who had undergone CLE with implantation of intraocular lens (IOL) to treat high myopia were retrieved. Details of the demographic profile, surgical procedure, complications, power, and type of IOLs implanted were recorded.

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Review of current status of refractive lens exchange and role of dysfunctional lens index as its new indication.

Indian J Ophthalmol

December 2020

Department of Cataract and Refractive Surgery, Narayana Nethralaya, Bengaluru, Karnataka, India.

Advances in phacodynamics and intraocular lenses (IOLs) has given second life to clear lens extraction (CLE) or refractive lens exchange (RLE) in recent years for the treatment of patients with high degrees of myopia, hyperopia, and astigmatism who are unsuitable for laser surgery. Furthermore, presbyopia treatment with RLE supplemented with multifocal or accommodating IOLs gives the dual benefit of correcting refractive errors with eliminating the need for cataract surgery. RLE should be consistent and effective for a good refractive outcome along with safety during the surgical procedure and in the postoperative period.

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Rationale: Microspherophakia is characterized by a small, spherical crystalline lens with increased sagittal diameter. Because of the uncertainty about the outcome, as well as the complexity of the operation and development of complications, the management and timing of surgical intervention for microspherophakia are still debated. Lens extraction is effective for avoiding the risk of pupillary blockage, but the outcome after operation is controversial.

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Purpose: To investigate the refractive results of a LASIK enhancement and its impact on treatment safety, efficacy, predictability and patient reported outcome in eyes after clear lens extraction and diffractive trifocal lens implantation.

Methods: A retrospective cohort multicentre study of Care Vision Refractive Centres in Germany compared two groups of patients. Group 1 consisted of eyes that had non-toric MIOL surgery only, whereas group 2 had a consecutive laser enhancement after 3 months follow-up.

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Bilateral clear lens extraction and intraocular lens implantation in a child with microspherophakia and Marfan syndrome.

Arq Bras Oftalmol

April 2020

Department of Ophthalmology, Otorhinolaryngology and Head and Neck Surgery, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista "Julio de Mesquita Filho", Botucatu, SP, Brazil.

We report the case of a 4-year-old boy with Marfan syndrome whose parents reported he had had low visual acuity since birth. On examination, there was microspherophakia and a small subluxation of the lens. The objective refraction was -23.

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BACKGROUND The aim of this study was to evaluate the feasibility of using a femto-laser in assisting xenograft cornea matrix lens transplantation in correcting ametropia, along with evaluating the effectiveness and predictability of this procedure. MATERIAL AND METHODS A corneal matrix pouch was prepared on the right eyes on 8 healthy New Zealand rabbits by a femto-laser that was also employed to perform small incision lenticule extraction (SMILE) on 8 bovine cornea matrix lenses (+6D). A lens was treated acellular and implanted into a right rabbit cornea matrix pouch.

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Purpose: To describe a case in which post-LASIK corneal ectasia was treated using an allogeneic lenticule implanted into the recipient eye.

Methods: A 29-year-old man presented with bilateral ectasia 10 years after LASIK. Manifest refraction was -1.

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