Reasons for Not Performing LASIK in Refractive Surgery Candidates in Yemen

Bamashmus, Mahfouth A.; Saleh, Mahmoud F.; Abdulrahman, M; Al-Kershy, Najeeb A

doi:10.1177/112067211002000508

Cited by 13 publications

(13 citation statements)

References 39 publications

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“…Studies would suggest that between 25 to 34 per cent of patients requesting a consultation may not be appropriate for LASIK surgery. [18][19][20] This number is consistent with our experience.…”

Section: Patient Selectionsupporting

confidence: 92%

Laser in situ keratomileusis in 2012: a review

Sutton

Lawless

Hodge

2014

Clinical and Experimental Optometry

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Section: Patient Selectionsupporting

confidence: 92%

Laser in situ keratomileusis in 2012: a review

Sutton

Lawless

Hodge

2014

Clinical and Experimental Optometry

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“…37 In Yemen, prevalences of 15.5% of keratoconus and 9.4% of forme fruste keratoconus were found among refractive surgery candidates. 33 In a study in the United States, 25.5% of eyes evaluated for refractive surgery met the Rabinowitz criteria for keratoconus suspect. 34 A vast majority of the studies state that the age of onset of the disease is between 20 and 30 years.…”

Section: Epidemiologymentioning

confidence: 99%

“…30,31 The disease has been shown to be more prevalent also in patients searching for refractive surgery, as a consequence of self-selection bias, due to their refractive error. [33][34][35][36][37] A study in Colombia reported 3.9% prevalence in a group of patients that underwent an ophthalmic evaluation in a refractive surgery center. 37 In Yemen, prevalences of 15.5% of keratoconus and 9.4% of forme fruste keratoconus were found among refractive surgery candidates.…”

Section: Epidemiologymentioning

confidence: 99%

Keratoconus: an inflammatory disorder?

Galvis

Sherwin

Tello

et al. 2015

Eye

303

199

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Keratoconus has been classically defined as a progressive, non-inflammatory condition, which produces a thinning and steepening of the cornea. Its pathophysiological mechanisms have been investigated for a long time. Both genetic and environmental factors have been associated with the disease. Recent studies have shown a significant role of proteolytic enzymes, cytokines, and free radicals; therefore, although keratoconus does not meet all the classic criteria for an inflammatory disease, the lack of inflammation has been questioned. The majority of studies in the tears of patients with keratoconus have found increased levels of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and matrix metalloproteinase (MMP)-9. Eye rubbing, a proven risk factor for keratoconus, has been also shown recently to increase the tear levels of MMP-13, IL-6, and TNF-α. In the tear fluid of patients with ocular rosacea, IL-1α and MMP-9 have been reported to be significantly elevated, and cases of inferior corneal thinning, resembling keratoconus, have been reported. We performed a literature review of published biochemical changes in keratoconus that would support that this could be, at least in part, an inflammatory condition.

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“…[1] The most common reasons for rejection are suboptimal corneal thickness, high myopia, keratoconus and forme fruste keratoconus (keratoconus suspect). Alternatives to LASIK for the correction of moderate to high myopia include clear lens extraction (CLE) and implantation of a phakic intraocular lens (PIOL).…”

Section: Introductionmentioning

confidence: 99%

Posterior vitreous detachment and retinal detachment after implantation of the visian phakic implantable collamer lens

Bamashmus

Al-Salahim²,

Tarish³

et al. 2013

Middle East Afr J Ophthalmol

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Introduction:To evaluate the vitreoretinal complications in myopes after Visian implantable collamer lenses (ICL) implantation.Materials and Methods:This is a retrospective, observational, non-comparative clinical study that evaluated 617 consecutive myopes who underwent ICL implantation at the Department of Refractive Surgery, Yemen Magrabi Hospital, Sana’a, Yemen between July 2006 and May 2010. Follow up ranged from 6 months to 40 months. Preoperative and postoperative patient evaluation included manifest and cycloplegic refractions, uncorrected (UCVA) and best spectacle-corrected visual acuity (BSCVA), slit-lamp biomicroscopy, intraocular pressure and dilated retinal examination. Investigations included corneal topography, central corneal thickness, anterior chamber depth and white to white diameter. Retinal diseases and complications were recorded and analyzed preoperatively and postoperatively.Results:Preoperatively, 61 (9.9%) eyes had posterior segment pathology requiring prophylactic laser photocoagulation. One eye developed spontaneous rhegmatogenous retinal detachment (RRD), one eye developed traumatic retinal detachment and two eyes required laser treatment postoperatively. The overall retinal detachment rate post-ICL was 0.32%.Conclusions:Posterior segment complications are rare after ICL implantation but dilated vitreoretinal assessment is important before and after the procedure. Patients with suspicious retinal lesions need a comprehensive vitreoretinal evaluation by a retinal specialist. If a patient develops floaters or blurry vision he/she requires further assessment by a vitreoretinal specialist.

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Reasons for Not Performing LASIK in Refractive Surgery Candidates in Yemen

Abstract: Patients who request refractive surgery have a variety of problems and attention must be given to these patients. Suboptimal corneal thickness, high amount of refractive error, and keratoconus were found to be the leading causes of not performing LASIK in Yemeni patients.

Cited by 13 publications

References 39 publications

Laser in situ keratomileusis in 2012: a review

Laser in situ keratomileusis in 2012: a review

Keratoconus: an inflammatory disorder?

Posterior vitreous detachment and retinal detachment after implantation of the visian phakic implantable collamer lens

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