نتایج جستجو برای: corneal haze
تعداد نتایج: 31120 فیلتر نتایج به سال:
BACKGROUND A new technique, therapeutic alloplastic laser in situ keratomileusis to correct high myopia, is introduced. METHODS Therapeutic alloplastic laser in situ keratomileusis consists of neutral homoplastic epikeratoplasty combined with superficial keratectomy performed with an excimer laser and/or a microkeratome. Indications for the technique are: myopia over 20 diopters (D), eyes wit...
The cornea is the primary refractive lens in the eye and transmits >90% of incident visible light. It has been suggested that the development of postoperative corneal haze could be due to an increase in light scattering from activated corneal stromal cells. Quiescent keratocytes are thought to produce crystallins that match the refractive index of their cytoplasm to the surrounding extracellula...
Purpose: To determine the success of combined trabeculotomy and trabeculectomy with application Mitomycin C in primary congenital glaucoma. Study Design: Interventional case series. Place Duration Study: Mughal eye hospital Lahore from January 2018 to December 2019. Methods: Twenty-four patients glaucoma were included. Secondary corneal haze excluded. Corneal diameter above 11.5, 12.5 13 mm (wh...
PURPOSE To assess the contribution of corneal myofibroblasts to optical changes induced by photorefractive keratectomy (PRK) in a cat model. METHODS The transforming growth factor (TGF)-beta-dependence of feline corneal keratocyte differentiation into alpha-smooth muscle actin (alphaSMA)-positive myofibroblasts was first tested in vitro. Twenty-nine eyes of 16 cats were then treated with -10 ...
Purpose -To study the clinical profile of patients panophthalmitis presenting to tertiary health care centre. Methods-This was a prospective observational that involved25 with complaining blurring vision, redness, pain, purulent discharge, photophobia and eyelid swelling. Results-There were 18 males 7 females age group taken 30 75 years.14 belonged 45 years, out which 10 4 females. 46 60 5 2 61...
purpose: to compare post-operative pain with cooling photorefractive keratectomy (prk) versus conventional prk. methods: a prospective clinical trial was performed on 94 eyes from 47 patients scheduled for prk. patients were randomly assigned to either cooling or conventional prk. pain was evaluated 6, 12, 24 and 48 hours post-operation using a visual analogue scale (vas). corneal haze, conjunc...
purpose : infectious corneal ulceration is a serious potential complication of prk. although gram positive organisms are the most common pathogens, in this study we present the first case of gram negative bacilli keratitis, alcaligenes, after prk. case report : a 22-year-old man was referred to our institution due to infection following corneal refractive surgery. three days after surgery, the ...
which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Eyes Chemical burns may be caused by either acidic or alkaline agents (1). Chemical injury of the eyes may produce extensive damage to the ocular tissues, resulting in permanent unilateral or bilateral visual impairment (2). Damage to the cornea as an impotent clear media ...
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