Subject(s)
Presbyopia/complications , Strabismus/complications , Eyeglasses , Female , Humans , Middle Aged , Presbyopia/therapy , Strabismus/therapyABSTRACT
The intraocular pressure (IOP), the intraocular pulse to pressure (pulse/pressure) relationship, and the ophthalmic arterial pressure have been measured in 20 patients with either unilateral or bilateral hemodynamically significant lesions of the internal carotid arteries (ICA) as determined from arteriography. Studies were repeated in 5 of hte patients after surgical endarterectomy on the obstructed ICA. In age matched normal subjects the pulse/pressure relations were symmetrical in pairs of eyes, and the ophthalmic arterial systolic pressure was 89.0 +/- 2.1 mm Hg; this was 66 +/- 1% of the brachial arterial systolic pressure. In 19 of 20 patients with carotid occlusive disease in this study the IOP, pulse amplitudes and the pulse/pressure relationships differed in pairs of eyes. The ophthalmic arterial systolic pressure on the sides with 95 to 100% ICA stenosis was 49.9 +/- 4.05 mm Hg, which was 33 +/- 3% of the brachial arterial systolic pressure. In the remaining eyes the degree of stenosis of the ipsilateral ICA was 36.5 +/- 7.9%; the corresponding eyes had an ophthalmic arterial systolic pressure of 70.f1 +/- 51.18 mm Hg, which was 45 +/- 4% of the brachial arterial systolic pressure. Endarterectromy of the occluded arteries caused a significant increase in the ophthalmic arterial pressure on the ipsilateral side and a smaller increase in the contralateral eye; these changes were associated with a statistically significant increase in the intraocular pulse and improvement in the pulse/pressure relation.
Subject(s)
Arterial Occlusive Diseases/physiopathology , Blood Pressure , Carotid Artery Diseases/physiopathology , Intraocular Pressure , Ophthalmic Artery/physiopathology , Aged , Carotid Arteries/diagnostic imaging , Carotid Artery Diseases/surgery , Carotid Artery, Internal , Endarterectomy , Female , Humans , Male , Middle Aged , Pulse , RadiographyABSTRACT
The ocular pulse amplitude of 20 myopic individuals (40 eyes) with refractive errors of -5.00 diopters and above was determined, using the Alcon Pneumatonograph. When compared to a group of normal individuals, the myopic group was found to have a significantly smaller mean ocular pulse amplitude but a significantly higher mean intraocular pressure. The importance of pulse-pressure relationship in the two groups is discussed.
Subject(s)
Choroid/physiopathology , Myopia/physiopathology , Pulse , Adolescent , Adult , Female , Humans , Intraocular Pressure , Male , Middle Aged , Regional Blood Flow , Tonometry, OcularABSTRACT
I have found the Reese muscle forceps to be the ideal instrument for holding and steadying the eyelid margin during tarsorrhaphy. Not only does it provide a firm grip, but it also prevents bleeding and retracts the eyelashes.
Subject(s)
Eyelids/surgery , Suture Techniques/instrumentation , HumansABSTRACT
Cryotherapy alone has destroyed as isolated retinoblastoma lesion in the fellow eye of a proven case of retinoblastoma. Follow-up for 14 months revealed no evidence of recurrence. Literature review has shown that cryotherapy has unique advantages in the treatment of retinoblastomas.
Subject(s)
Cryosurgery , Eye Neoplasms/therapy , Retinoblastoma/therapy , Child, Preschool , Evaluation Studies as Topic , Eye Neoplasms/diagnosis , Follow-Up Studies , Humans , Male , Retinoblastoma/diagnosisSubject(s)
Blood Pressure , Intraocular Pressure , Ophthalmic Artery/physiology , Pulse , Adult , Humans , Methods , Vision, OcularABSTRACT
We investigated the intraocular penetration of cloxacillin in 14 patients undergoing surgery for senile cataract after intramuscular and subconjunctival injections of the drug. No antibiotic level was detected in the aqueous humor when cloxacillin was administered intramuscularly in a dose that ranged between 1 and 4 g. With subconjunctival injection, therapeutically effective cloxacillin activity was detected in the aqueous humor only after a dose of 250 mg.
