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R Sihota

Publications and source records attributed to R Sihota.

At least 19 recordsLinked to original sources
PubMed1995

Traumatic glaucoma.

In the management of an ocular injury, traumatic glaucoma is often overlooked. Prospectively reviewing 100 consecutive patients of traumatic glaucoma we found a very high correlation of postconcussional glaucoma with traumatic cataracts, angle recession of more than 180 degrees, significant injuries to the iris and a displacement of the lens. Two of these four clinical features were present in all cases. Penetrating injuries were followed by a secondary glaucoma if an adherent leucoma and/or evidence of lenticular damage or displacement were seen. These clinical features all point to a damage to the lens-iris diaphragm. The trabecular meshwork being directly related to these structures would also be involved in such an injury, leading to significant impairment of function, and the eye would therefore be more prone to developing glaucoma. Our study has highlighted certain clinical findings which could act as 'markers' for the early diagnosis of traumatic glaucoma.

Adolescent↗
PubMed1994

The fat pad in dermis fat grafts.

BACKGROUND: Dermis fat grafts are used in orbital reconstruction in a variety of procedures. However, there have been few controlled studies testing their effectiveness. This is a prospective study on 40 patients. METHODS: Primary and secondary orbital dermis fat grafts were evaluated with regard to the long-term cosmetic results of two thicknesses, 10 and 20 mm, of fat pad, keeping all other parameters as constant as possible. Adequacy of the socket, lid anomalies; superior sulcus deformity, exophthalmometry, and motility of the prosthesis were assessed periodically. CONCLUSION: There was a significantly lower incidence of enophthalmos and superior sulcus deformity with the use of a fat pad thickness of 20 mm, without any compromise in the motility of the prosthesis or take of the graft.

Adipose Tissue↗
PubMed1994

Oral albendazole in the management of extraocular cysticercosis.

Surgical removal of extraocular cysticerci is fraught with complications. The effect of oral albendazole in such cases has been evaluated in a randomised, controlled, clinical trial. Of 24 ultrasonographically diagnosed, and ELISA positive cases of extraocular cysticerci, 12 received oral albendazole 15 mg/kg once daily for 1 month, while the 12 controls received a placebo. Marked clinical improvement was seen in all the cases in the treatment group at 4 weeks, with collapse of the cyst at 6 weeks (75%), and complete disappearance at 3 months (100%). No clinical or ultrasonographical change was noted in the control group. A trial of medical management with oral albendazole merits consideration in cases of extraocular cysticerci.

Administration, Oral↗
PubMed1994

Aqueous humour lactic acid and proteins in eyes with iris neovascularization.

The content of lactic acid and proteins in the aqueous humour of eyes with neovascularization of the iris (NVI) of various etiology was determined. The results were analysed for any possible correlation with the angiogenesis observed in such eyes. Aqueous humour from patients with immature senile cataracts served as the control. The total protein concentration in cases of NVI (mean +/- SD, 345.7 +/- 161.0 mg/dl; n = 15) was significantly raised (P < 0.001) as compared with the control values (mean +/- SD, 30.91 +/- 14.95 mg/dl; n = 12). On the other hand, the concentration of lactic acid in cases of NVI (mean +/- SD, 45.97 +/- 15.5 mg/dl; n = 13) was significantly lower (P < 0.01) as compared with the controls (mean +/- SD, 65.86 +/- 10.9 mg/dl; n = 8). These findings show that angiogenesis is not associated with a raised level of lactic acid in the aqueous humour, whereas the elevated protein values are suggestive of a breakdown of the blood-aqueous barrier.

Adult↗
PubMed1993

Role of anterior retinal cryoablation in the management of neovascular glaucoma.

In a prospective study, the effect of anterior retinal cryoablation (ARC) in the management of neovascular glaucoma (NVG) was evaluated over two years, in 72 patients (74 eyes). The outcome of trabeculectomy/seton surgery preceded by 360 degrees ARC was also analysed in 12 eyes of 12 patients (6 eyes in each group). Following ARC, pain relief with dramatic regression of anterior chamber inflammatory reaction was observed in 95% of the patients (59 eyes). At the end of the follow up, as confirmed by iris fluorescein angiography, regression of neovascularization of the iris was documented in 93.5% (58 eyes) of the cases. Intraocular pressure control (< or = 22 mm Hg) was achieved in 82.3% (51 eyes) cases. IOP control of < or = 22 mm Hg was achieved in all the 6 eyes with the seton surgery following ARC. Similarly, control of IOP was successfully achieved in all the 6 eyes of patients with NVG with trabeculectomy with post operative course of 5-fluorouracil following ARC. ARC is strongly recommended in NVG, especially in eyes with media opacities and as a preliminary procedure for filtering surgery or drainage implant surgery.

Adolescent↗
PubMed1993

Sturge-Weber syndrome: management of glaucoma with combined trabeculotomy-trabeculectomy.

We reviewed the records of 16 patients (19 eyes) with Sturge-Weber syndrome (SWS). Scleral pigmentation was present in 12 (63.2%) of these eyes; nevus of Ota in two (10.6%). Combined trabeculotomy-trabeculectomy was performed in 18 eyes. After a mean follow up of 42 months (range, 1 to 8 years), intraocular pressure was controlled (< or = 22 mm Hg) in 11 eyes (61.1%), and visual acuity was better than 6/60 in eight. Intraoperative hyphema occurred in four eyes (22.2%); vitreous loss in three (16.7%). Postoperative choroidal detachment occurred in three eyes (16.7%); vitreous hemorrhage in one (5.6%). In all of the cases of repeat surgery (three eyes), postoperative subconjunctival injections of 5-fluorouracil resulted in a diffuse filtering bleb. We conclude that combined trabeculotomy-trabeculectomy is a promising treatment for patients with SWS with glaucoma.

Child↗
PubMed1992

Vitreofoveal traction syndrome in the young.

Young patients with sub-optimal visual acuity and no obvious ophthalmic pathology were found to complain of a 'shadow' or decreased brightness, with no metamorphopsia, at the point of regard, suggesting a pathology anterior to the neuroepithelium of the retina. Examination of fourteen such patients with a fundus contact lens revealed a focal vitreo-foveal detachment in eleven patients. Nine patients had a white plaque attached to this detachment, with a corresponding visible loss of superficial retinal tissue in one case. One patient had minute lamellar holes bilaterally. We feel that tenuous attachments of the vitreous body to the fovea could exert traction on the vitreo-retinal interface or shrinkage of a fibrocellular membrane on the inner foveal surface could lead to the observations made by us. The diagnosis of such lesions could be used to determine the cause of a sudden loss of vision in young patients, preventing the needless use of expensive and invasive investigations.

Adolescent↗
PubMed1992

Echographic measurement of extraocular muscle thickness in proptosis.

Echographic extraocular muscle thickness was measured in 102 eyes of 51 patients with proptosis of varied etiology. That of vascular origin was associated with extraocular muscle enlargement in all cases. Enlargement of the medial rectus was found to be statistically significant in thyroid orbitopathy. Sixty percent of cases with nonspecific orbital inflammatory disease had enlarged extraocular muscles. We discuss the supportive role of determining echographic measurements of extraocular muscle thickness in proptosis and highlight the uniform extraocular muscle enlargement found in proptosis of vascular origin.

Adolescent↗
PubMed1991

A prospective evaluation of anterior retinal cryoablation in neovascular glaucoma.

We report a prospective evaluation of the effect of anterior retinal cryopexy on 62 eyes with neovascular glaucoma. Pain was relieved and anterior chamber inflammatory reaction regressed dramatically in 95%. Iris neovascularization was reduced or regressed in 93.5%. Control of intraocular pressure was clinically significant in 82.3% 1 year after the procedure, especially in patients with pretreatment pressures less than 40 mm Hg on maximal medical therapy. Anterior retinal cryopexy is recommended in eyes with media opacities and as a preliminary procedure for filtering surgery in eyes with neovascular glaucoma.

Adolescent↗
PubMed1990

Evaluation of peribulbar anesthesia in eye camps.

Modified peribulbar anesthesia was administered with a 26-gauge, half-inch, insulin needle to 367 eyes of 360 patients in three eye camps in India. The intraocular procedures consisted of cataract extraction in 349 eyes, trabeculectomy in 11 eyes, and combined cataract extraction and trabeculectomy in seven eyes. The overall success rate of the anesthesia technique was 90.2% (supplemental anesthesia was required in 36 eyes). There was good lid and globe akinesia and anesthesia, adequate pupillary dilatation for intracapsular cataract extraction, and excellent hypotony. No significant local or systemic complications were observed, except for mild to moderate chemosis in some eyes, which did not produce any intraoperative or postoperative problems. We found this technique easy to learn, relatively safe, effective, and well tolerated by our patients.

Anesthesia, Local↗
PubMed1988

Symmetrical partial lateral 'cryptophthalmos'. A new concept of its embryological pathogenesis.

A unique case of bilateral, partial cryptophthalmos is described, with no associated systemic anomalies. There were symmetrical, well-developed palpebral apertures medially with small conjunctival sacs, and symmetrical hemicryptophthalmos laterally. A faint groove extended temporally over the fused lids on both sides. There was a distinct plane of cleavage laterally between the disorganized microphthalmic globes and overlying tissues. The surgical observations are detailed.

Eye↗
PubMed1988

Photocoagulation of large iris cysts.

Large epithelial iris cysts, whose anterior walls are in contact with the corneal endothelium, are difficult to treat. Initial surgical decompression with later argon laser photocoagulation has been advocated, but the attendant complications are many. In four patients, we barraged the posterior wall of the cyst and the surrounding iris with the argon laser. The cyst was then collapsed using the argon or neodymium-yttrium aluminum garnet laser, and the anterior wall, which fell away from the cornea, was then photocoagulated. No recurrences or untoward sequelae were seen on follow-up. We recommend this noninvasive technique for all large iris cysts.

Adolescent↗
PubMed1987

Aspergillus endophthalmitis.

A case is reported of bilateral aspergillus endophthalmitis in an infant without any detectable systemic predisposition or focus of infection. The patient is the youngest recorded case of endogenous aspergillus endophthalmitis so far, with an onset of symptoms at the age of 15 days. After histopathological confirmation of the aetiology by enucleation of the atrophic eye, systemic amphotericin B therapy was instituted with excellent results in the fellow eye. This is the first recorded instance of a complete clinical cure in aspergillus ocular disease on systemic amphotericin B therapy alone.

Ampicillin↗