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Biomedical subjects

Abdul-Elah Al-Towerki

Publications and source records attributed to Abdul-Elah Al-Towerki.

5 recordsLinked to original sources
PubMed2006

Microbial keratitis after amniotic membrane transplantation.

PURPOSE: To determine the incidence of early-onset (<30 days) and late-onset (>30 days) microbial keratitis after treatment of persistent corneal epithelial defects with amniotic membrane transplantation (AMT) utilizing tissue acquired from a commercial laboratory or prepared by the institutional eye bank. METHODS: A retrospective, non-randomized, sequential, comparative study was performed for every patient with a persistent corneal epithelial defect who underwent primary AMT at KKESH between January 1, 2003 and June 30, 2004. RESULTS: A total of 142 AMT procedures were performed for persistent corneal epithelial defects during the study period. There were 72 cases using commercially prepared tissue and 70 cases using locally prepared tissue. The mean patient age was 50.3+/-25.6 years (range, 1-104 years). The mean follow up was 6.3+/-5.0 months (range, 1-21 months). There were no cases of early-onset microbial keratitis in cases in which either commercially acquired tissue or locally prepared tissue was used. CONCLUSION: Amniotic tissue prepared in a commercial laboratory or by properly qualified eye bank personnel may be used for AMT in eyes with persistent corneal epithelial defects with minimal risk of microbial keratitis in the first postoperative month.

Adolescent↗
PubMed2005

Fixed dilated pupil after penetrating keratoplasty for macular corneal dystrophy and keratoconus.

PURPOSE: To identify predisposed eyes, risk factors, and protective measures and to evaluate methods of treatment for fixed dilated pupil after penetrating keratoplasty (PKP) for macular corneal dystrophy (MCD) and keratoconus. DESIGN: Retrospective observational case series. METHODS: A retrospective review was conducted of the charts of 195 patients who had PKP for MCD and of 1800 patients who had PKP for keratoconus at the King Khaled Eye Specialist Hospital in Riyadh, Saudi Arabia. The review included an evaluation of the preoperative and intraoperative data and the postoperative course. In addition, clinical examinations at the last visit and photographs of the cornea, pupil, iris, and lens were analyzed. RESULTS: Twenty-one eyes of 18 patients had fixed dilated pupil after PKP; 15 eyes of 12 patients had MCD, and six eyes of six patients had keratoconus. A rise in intraocular pressure (IOP) during the procedure was seen in five patients (23.8%). Fixed dilated pupil was documented on the first and second postoperative days and the second postoperative week in 17 (80.9%), one (4.8%), and three (14.3%) eyes, respectively. Six eyes (28.6%) of six patients had severe eye inflammation. Only one eye (4.8%) regained partial reactivity of the pupil on follow-up visits. Seven eyes (33.3%) experienced lens changes; nine eyes (42.8%) had elevated IOP on the first postoperative day, and none of the eyes had chronic glaucoma. CONCLUSION: Inflammatory and multifactorial pathologic condition can cause fixed pupil after PKP. Atropine use, keratoconus, and high IOP are not constant findings in this syndrome. Awareness of the risk factors of fixed dilated pupil will help prevent against its occurrence.

Adolescent↗
PubMed2004

Changing indications for corneal transplantation at the King Khaled Eye Specialist Hospital (1983-2002).

PURPOSE: To identify changing indications for keratoplasty over the last 20 years at a tertiary care eye hospital in a country with rapidly evolving ophthalmic care services. METHODS: A retrospective review was performed of the eye bank records of every patient who received a lamellar or penetrating keratoplasty at the King Khaled Eye Specialist Hospital in Riyadh, Saudi Arabia, between January 1, 1983 and December 31, 2002. For each case, the primary surgical indication was identified. RESULTS: A total of 8318 corneal transplants were performed during this 20-year period. In the first 5 years of the study, the leading indications for corneal transplantation were corneal scarring (52.0%), aphakic/pseudophakic bullous keratopathy (13.5%), corneal degeneration (10.0%), and keratoconus (7.6%). During the last 5 years of the study, the leading indications for corneal transplantation were keratoconus (40.2%), corneal scarring (19.8%), failed corneal transplant (11.3%), and corneal ulceration (10.2%). There was a dramatic increase in the number of transplants performed for keratoconus (441%) and failed corneal transplants (285%) as well as a dramatic decrease in the number of transplants performed for corneal degeneration (-88%) and scarring (-60%) between the first and last 5 years of the study period. CONCLUSIONS: Major changes in the indications for corneal transplantation were related to the introduction and expansion of modern ophthalmic services at a time of rapid socioeconomic development and population growth.

Corneal Diseases↗
PubMed2003

Corneal honeybee sting.

PURPOSE: To report a rare case of corneal honeybee sting. METHODS: The corneal honeybee stinger was removed under slit-lamp guidance using a 27-gauge needle. RESULTS: Corneal edema resolved by 90% the next day after removal of the honeybee stinger without using topical steroids. CONCLUSION: The patient's condition improved significantly after removal of the corneal honeybee stinger, and corneal edema disappeared. The patient was evaluated in 1 week and then 3 months with permanent mild central corneal opacity.

Adult↗