Search PubMed⌕ Search
Home/Archive/PubMed

PubMed · 7216652

Cyclocryotherapy for glaucoma.

A R Bellows
View original source ↗Export metadata ↓

Abstract

CCT is a simple, noninvasive, short, ablative surgical procedure that has been effectively used to treat advanced uncontrolled glaucoma. A specific protocol is recommended and the rationale for strict adherence is presented. The long-term benefits of CCT in patients with open-angle glaucoma following cataract extraction have been well established. However, although patients with neovascular glaucoma may have adequate pressure control following CCT, the serious complications of progression to no light perception and phthisis bulbi have discouraged its use. CCT can be effective for neovascular glaucoma when other methods of surgical management prove unsuccessful and visual prognosis is very poor. The loss of functional vision occurred in fewer than 10 percent of eyes treated with CCT, and it is important to emphasize that only eyes with greatest risk and poorest prognosis were treated with this modality. CCT has become an important addition to the surgical armamentarium for the treatment of some specific types of glaucoma.

Explore related subjects

Ciliary BodyCryosurgeryGlaucomaHumansJournal Article

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

A R Bellows. 1981. Cyclocryotherapy for glaucoma.. https://doi.org/10.1097/00004397-198102110-00012

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2001

Retinoscopy in infants using a near noncycloplegic technique, cycloplegia with tropicamide 1%, and cycloplegia with cyclopentolate 1%.

PURPOSE: This study compares retinoscopy in infants using a near noncycloplegic technique, cycloplegia with tropicamide 1%, and cycloplegia with cyclopentolate 1%. The study sample included 29 healthy, nonstrabismic infants 4 to 7 months of age (mean 5.71 months). METHODS: Each study subject was examined at two separate visits an average of 2 weeks apart (mean [+/-SD] 14 +/- 9 days). The examiner completed a case history, iris color grading, confrontation tests, and noncycloplegic near retinoscopy in a dark room and then instilled a drop of topical anesthetic in each eye followed by 2 drops of cycloplegic agent separated by 5 min. Retinoscopy was performed 25 to 30 min after the first drops were instilled. The bottles were masked, and the drop administered at the first visit was randomly assigned. RESULTS: On a scale of 0 to 4.9, the median iris grade was 4.0, which corresponds to a brown or darkly pigmented iris. All reported retinoscopy results are for the horizontal meridian of the right eye. The mean refractive error using noncycloplegic near retinoscopy was +0.94 D (+/-1.19 D). The mean refractive error was +1.81 D (+/-1.19 D) with tropicamide and +1.88 D (+/-1.45 D) with cyclopentolate. There was no statistically or clinically significant difference between the two cycloplegic measurements using different diagnostic agents (t = -0.46, p = 0.65). The mean difference between noncycloplegic and cycloplegic retinoscopy was 0.89 D (+/-0.66 D) with tropicamide (t = -6.57, p < 0.0001) and 1.04 D (+/-0.94 D) with cyclopentolate (t = -5.38, p < 0.0001; all two-sided paired t-tests). There were no serious adverse reactions with either agent, although one infant temporarily developed redder than normal cheeks after instillation of cyclopentolate. CONCLUSION: Our results suggest that tropicamide is as effective as cyclopentolate for the measurement of refractive error in most healthy, nonstrabismic infants.

Ciliary Body↗