Ultrastructural and pharmacologic studies on laser-induced glaucoma in primates and rabbits
Sustained high intraocular pressure resulting in optic nerve cupping and loss of ganglion cells was produced in five rhesus monkeys and eight pigmented rabbits by applying argon laser energy to the trabecular meshwork. In addition, the rabbits manifested buphthalmus. Flow of carbon particles subsequently injected into the anterior chamber was obstructed at the trabecular meshwork by a wound-healing response that closed the intratrabecular spaces. Besides this sustained high intraocular pressure as a result of late scarring, an acute hypertensive response was seen in all rabbits which may correspond to the acute hypertension seen after laser trabeculoplasty in humans. The acute hypertensive response could be only partially blocked by prostaglandin inhibitors and the authors believe that prostaglandins are not primarily responsible for this effect. Medications known to lower intraocular pressure were systematically tested in both glaucoma models.
- Research Organization:
- Univ. of Oklahoma, Oklahoma City
- OSTI ID:
- 5720057
- Journal Information:
- Lasers Surg. Med.; (United States), Journal Name: Lasers Surg. Med.; (United States) Vol. 4:4; ISSN LSMED
- Country of Publication:
- United States
- Language:
- English
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63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ANIMALS
BIOLOGICAL EFFECTS
BIOLOGICAL MODELS
BIOLOGICAL RECOVERY
CARDIOVASCULAR DISEASES
DISEASES
ELECTROMAGNETIC RADIATION
HEALING
HYPERTENSION
INJURIES
LASER RADIATION
LASERS
MAMMALS
MONKEYS
NERVES
NERVOUS SYSTEM
PRIMATES
PROSTAGLANDINS
RABBITS
RADIATIONS
RECOVERY
SENSE ORGANS DISEASES
SYMPTOMS
VASCULAR DISEASES
VERTEBRATES
WOUNDS