International ophthalmology
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To report changes in retinal arterial and venous blood flow pattern in two patients with tumors involving the entire optic nerve. ⋯ Reduced retinal arterial flow velocities in the setting of optic nerve gliomas may correlate with the presence of optic nerve disease. Phasic blood flow in the central retinal vein with optic nerve sheath meningioma may be the reason that some patients with this tumor develop retinal choroidal venous anastomoses.
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Although unilateral angle closure glaucoma is quite common, simultaneous bilateral acute angle closure is very rare and is usually induced by an external cause. General anesthesia is a triggering factor for acute angle closure glaucoma. ⋯ One patient had cholecystectomy, the other craniotomy for tumor resection. In the postoperative period following general anesthesia, any patient at risk for angle closure glaucoma should be followed closely; patients with periorbital pain and visual symptoms should be examined for angle closure glaucoma attack in both eyes.
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To identify the risk factors for retinal detachment after posterior segment intraocular foreign body (IOFB) injuries and to study the association between the development of retinal detachment and visual outcome. ⋯ Retinal detachment after posterior segment IOFB injuries is associated with a poor visual outcome. Large IOFB and presence of endophthalmitis are the strongest predictive factors for the development of retinal detachment.
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Many preoperative ophthalmic and medical tests lack proven effectiveness in the evaluation of cataract surgery patients. Variation in use has been described in the USA, but little information is available for countries with different health systems. The objectives of the study were to assess variation in ophthalmologists' use of preoperative testing on cataract surgery patients and to identify ophthalmologists' characteristics associated with it. ⋯ In Barcelona, Spain, some ophthalmic tests of unproven effectiveness are frequently performed preoperatively on cataract surgery patients without ocular comorbidity. Also, a generalized utilization of several medical tests was reported. There is potential for some cost containment and more appropriate care of cataract patients without diminishing the quality of care, in a location with low surgery rates.
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Randomized Controlled Trial Clinical Trial
Ocular hypotensive effect of sublingual administration of timolol.
A randomized clinical, trial to assess ocular hypotensive effect of sublingual administration of timolol was performed. ⋯ Sublingual administration seems to be a new interesting way for reducing the IOP. Long term studies are required in order to test efficacy and safety of this new treatment.