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Biomedical subjects

H S Sugar

Publications and source records attributed to H S Sugar.

At least 37 records · Page 2Linked to original sources
PubMed1977

Experiences with some modifications of cyclodialysis for aphakic glaucoma.

Continued attempts to improve the success rate with modifications of the cyclodialysis procedure have been made and described here. The results with a scleral pedicle insertion and with a long scleral incision parallel to the limbus were very poor. As a result of improvements in the technique of separating the ciliary body from the scleral spur by depressing the former mechanically and of using of meridional incision to avoid a scar barrier, I have returned to a modified Blaskovics procedure. Further use of this procedure with continued follow-up is planned. However, I invite you to try the various procedures described here, including Aviner's, so that we may find ways of improving our results with this potentially excellent operations, especially in aphakic glaucoma as primary procedures.

Ciliary Body↗
PubMed1977

[Removal of intraocular tumors and cysts by deep lamellar resection (author's transl)].

A series of 28 cases is presented in which a relatively simple surgical procedure of deep lamellar resection of adjacent cornea and sclera is used to remove malignant or possibly malignant growths of the iris root, ciliary body and interior choroid and epithelial cysts and downgrowths. The technique was developed from the early trabeculectomy operation and has been used during the past 16 years. It was used to remove 16 epithelial implantation cysts, 2 benign tumors of the chamber angle, 7 malignant melanomas of the iris root, 1 malignant melanoma of the choroid and ciliary body and 2 epithelial downgrowths.

Adult↗
PubMed1976

Ocular findings six years after intravitreal silicone injection.

A case of giant retinal tear treated by injection with dimethicone 350 (medical fluid silicone) was observed for six years before enucleation. About four months after the injection, signs of anterior segment ischemia were evident. A year after the injection, an injury resulted in displacement of dimethicone 350 into the anterior chamber. Enucleation was done because of pain.

Adolescent↗
PubMed1976

Keratoconus associated with retrolental fibroplasia.

Three adult male patients with keratoconus associated with severe bilateral retrolental fibroplasia were studied. Two of these presented with acute corneal hydrops. The association may be of some interest in determining the etiology of keratoconus.

Adult↗
PubMed1976

[The exfoliation syndrome: source of the fibrillar material on the capsule (author's transl)].

A clinical case of unilateral capsular exfoliation syndrome was observed in the previously traumatized eye of a 22-year-old man with a drawn-down pupil. The distribution of material corresponded to the folds of the inner surface of contiguous iris. The periphery of the lens was free of deposits, as far as could be seen. These findings contradict previous theories on the source of the fibrillar material from the lens epithelium and indicate that it is derived from the iris pigment epithelium and not from within the lens capsule, although there is no question that a similar process involves the peripheral lens epithelium and capsule, the products of which probably do not reach the lens surface.

Adult↗
PubMed1976

The exfoliation syndrome.

A clinical and ultramicroscopic review, including discussion of both scanning and transmission microscopy of the exfoliation syndrome, suggests that the term pseudoexfoliation be replaced by exfoliation syndrome. Involvement of the lens epithelium and, particularly, the pigment epithelium of the iris and the ciliary body epithelium are emphasized as being the likely sources of the exfoliative fibrils. A case of exfoliation syndrome in an eye with an eccentric pupil revealed that the granular material seen on the lens capsule occurs only where the iris is in contact with the lens surface and the process may even involve the central anterior capsule under proper conditions. This finding, together with the evidence of continuing deposits after intracapsular cataract extraction, suggests that the granular material is deposited from the iris and that the material formed by the lens epithelium remains within the lens capsule.

Adult↗
PubMed1975

Polyglycolic acid suture in strabismus surgery.

Polyglycolic acid, synthetic, absorbable braided suture was compared to gut with respect to handling, strength, and tissue reaction in 70 strabismus procedures. This new suture material produced less tissue reaction than gut and had handling characteristics that were similar to silk. It can be used in smaller sizes than gut because of its greater strength and firm knot. Polyglycolic acid suture appears to be a useful addition to ophthalmic suture materials.

Absorption↗
PubMed1975

Comparison of in vitro corticosteroid response in pigmentary glaucoma and primary open-angle glaucoma.

We used an in vitro assay utilizing corticosteroids to inhibit transformation of peripheral blood lymphocytes to evaluate a group of 20 patients with pigmentary glaucoma. The pigmentary glaucoma patient group did not manifest the markedly increased cellular sensitivity to corticosteroids associated with primary open-angle glaucoma. If increased sensitivity to corticosteroids plays an essential role in the pathogenesis of primary open-angle glaucoma, then pigmentary glaucoma appears to be etiologically, as well as clinically, a separate entity.

Adult↗
PubMed1975

Further use of polyglycolic acid (Dexon) sutures in cataract and other intraocular surgery.

Polyglycolic acid sutures were used in 239 cases of intraocular surgery (164,6-0 size, 75, 7-0 size). Most of these (226) were cataract extractions. The results were excellent, with minimal complications. The 6-0 suture was somewhat stiff and associated with some tissue drag. The 7-0 size overcame these deficiencies and was considered the closest approach to date to the ideal absorbable suture. In addition, these appears to be an inhibition to bacterial penetration by PGA.

Absorption↗
PubMed1975

Limbal trepanation: fourteen years' experience.

Limbal trepanations on 264 eyes were observed postoperatively for 6 months to 14 years. Excellent results were obtained in patients over 35, particularly those in the 50 to 70 age group, with chronic open angle and chronic angle closure glaucoma. Results were poor in younger age groups, and in those with secondary glaucoma, especially where it was associated with inflammatory disease.

Adult↗