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Biomedical subjects

A C Terry

Publications and source records attributed to A C Terry.

13 recordsLinked to original sources
PubMed1990

A systematic approach to the diagnosis and treatment of chronic conjunctivitis.

In 58 patients with chronic conjunctivitis of greater than two weeks' duration, examination included obtaining an ocular and general medical history and performing a complete ophthalmic examination of the external eye. Conjunctival smears were obtained for Gram and Giemsa staining, direct immunofluorescent monoclonal antibody staining for Chlamydia trachomatis and herpes simplex virus, and chlamydial culture. Cultures for bacteria and viruses were obtained in 33 patients. The cause of the chronic conjunctivitis based on clinical and laboratory criteria was established in 40 of 58 (69%) patients: chlamydia, 11 (19%); virus, eight (14%); irritant, six (10%); allergen, four (7%); contact lens, four (7%); bacteria, four (7%); acne rosacea, two (3%); and floppy eyelid syndrome, one (2%). In 18 of 58 (31%) patients, no specific cause was detected. We recommend a systematic approach in the investigation of chronic conjunctivitis. Direct immunofluorescent monoclonal antibody staining is an effective and rapid technique for detecting chronic chlamydial conjunctivitis.

Adult↗
PubMed1987

Complications of semiflexible, closed-loop anterior chamber intraocular lenses.

Anterior chamber intraocular lenses (IOLs) provided good visual rehabilitation of aphakia in a majority of patients. An increasing number of eyes with closed-loop, semiflexible anterior chamber implants are now being seen with decreased vision due to corneal edema and persistent cystoid macular edema. We evaluated 53 such eyes in 52 patients who presented with decreased vision one to 51 months (average, 15 months) after lens implantation. The most frequent lens implanted was the Surgidev Style 10 Leiske IOL. Surgery for IOL removal or exchange with or without penetrating keratoplasty was performed in 34 (64%) of 53 eyes; visual acuity recovery ranged from 20/20 to hand motions (average, 20/80). Despite clear corneal grafts in 24 (92%) of the 26 eyes that underwent corneal transplantation, visual acuity of 20/40 or better was obtained in only nine eyes (26%). Based on the intractable inflammatory sequelae associated with anterior chamber closed-loop IOLs, we strongly urge discontinuation of their use.

Aged↗
PubMed1987

Cataract extraction after vitrectomy.

Cataract extractions were performed in 25 patients who had previously undergone pars plana vitrectomy. Posterior chamber IOLs were implanted in 20 of 26 eyes. Modification of the usual surgical technique was often necessary because the zonules and/or posterior capsule were unusually mobile. Lens opacities were nuclear sclerotic in 17 eyes (65%) and posterior subcapsular in nine eyes (35%). Visual acuity improved an average of five lines, and final visual acuity was 20/50 or better in 13 eyes (50%). Visual acuity after cataract extraction closely paralleled the best visual acuity after vitreous surgery in all patients. Complications were tears in the posterior capsule in two eyes and postoperative vitreous hemorrhage in one eye. These complications did not limit final vision.

Adolescent↗
PubMed1985

Tissue toxicity of laser-damaged intraocular lens implants.

Because of close proximity to the posterior capsule, the posterior chamber intraocular lens is frequently damaged when capsulotomy is performed using the Nd:YAG laser. Damage to the optic or haptics of an intraocular lens may release substances potentially toxic to intraocular tissues. We found that injection molded intraocular lenses experimentally damaged using multiple YAG laser burst at energy levels of 10 mJ or greater released compounds which caused cell death to cultures of human conjunctival epithelial cells, retinal pigment epithelial cells, choroidal cells, and retinoblastoma cells. No cytotoxic effect was seen at energy levels of 2 and 5 mJ.

Cataract Extraction↗
PubMed1984

Improved vision following penetrating keratoplasty for pseudophakic corneal edema--visual results.

We studied prospectively 20 consecutive eyes of 17 patients who underwent penetrating keratoplasty for pseudophakic corneal edema. Copeland intraocular lens implants were retained in all cases initially, although one implant was subsequently removed. The visual results were analyzed at 12 and 24 months. With a minimum of 12 months follow-up, 65% of eyes saw 20/40 or better, while 80% saw 20/80 or better. By 24 months, 80% saw 20/40 or better, while 95% saw 20/80 or better. Post-keratoplasty refractive surgery, consisting of relaxing incisions and/or wedge resections, was performed in six eyes.

Corneal Diseases↗
PubMed1984

Removal of closed-loop anterior chamber lens implants.

A simplified method for removing closed-loop anterior chamber intraocular lenses which have become embedded within the ciliary body is described. The procedure is not difficult to perform, requires no special instrumentation, and minimizes the risk of bleeding.

Anterior Chamber↗
PubMed1983

Neodymium-YAG laser for posterior capsulotomy.

We used the neodymium-YAG laser to perform discission of the posterior capsule in 49 eyes of 47 patients who had undergone previous extracapsular cataract extraction. The visual results were encouraging, with an improvement in visual acuity of one or more Snellen lines in 45 eyes and an improvement of three or more Snellen lines in 33 eyes. The complications included increases in intraocular pressure in 28 eyes. Intraocular pressures between 21 and 40 mm Hg were detected in 21 eyes and exceeded 41 mm Hg in another seven. In 14 of the 16 eyes in which intraocular pressure increased to more than 30 mm Hg, the maximum intraocular pressure was detectable within three hours after treatment. Other complications included damage to the intraocular lens in 12 of 30 eyes with implants and rupture of the anterior hyaloid face with forward displacement of vitreous into the anterior chamber in six of 19 eyes without implants. One of these eyes later developed a rhegmatogenous retinal detachment. A transient laser-induced hemorrhage occurred in one eye.

Aqueous Humor↗
PubMed1975

Rate of incorporation of dietary fat in gold thioglucose obesity in mice.

Gold Thioglucose injections in mice are followed by a rapid accumulation of fat in the carcasses. The incorporation of an oral dose of [3H] glyceroyl tripalmitate in body fat stores showed after GTG-treatment a transient but significant increase and a return to normal values within 6 weeks. The rate of incorporation of dietary fat into the body was estimated from these values as well as from food intake and fat content of the diet (2.5 per cent). The resulting curve showed great similarity with the first differential of the curve of total body fat accumulated during that period. The rate of incorporation of dietary fat into body stores is apparently modified in GTG obesity in mice.

Adipose Tissue↗
PubMed1975

Food and water intake in gold thioglucose-induced obese Charles River mice.

Food and water intake have been measured during the dynamic phase of gold thioglucose-induced obesity in Charles River mice. Regressions of gain in weight with food and water consumption were calculated in young growing animals and in adults fed ad libitum. The influence of fat content in the diet (2.5 and 8% fat) and environmental temperature (68degrees or 79degrees F) was estimated on the regressions. Excessive gain in weight without hyperphagia was observed in growing animals, in adults fed on a fat-enriched diet or maintained within a thermoneutral environment (79degrees F). But a significant hyperphagia was observed in adults fed with a conventional diet and maintained at 68degrees F or in growing animals as a sequela of food deprivation.

Age Factors↗