Biomedical subjects

F Camesasca

Publications and source records attributed to F Camesasca.

6 recordsLinked to original sources

PubMed1994

Endophotocoagulation through perfluorodecalin in rabbit eyes.

Retinal laser endophotocoagulation through perfluorodecalin was studied in six eyes of three Dutch-belted rabbits after vitrectomy. Both the energy density threshold (EDT/50) and the energy threshold necessary to obtain a therapeutic lesion were evaluated. Both argon and semiconductor diode laser endophotocoagulators were used. The amount of laser power energy and the histology of chorioretinal lesions were similar when photocoagulating through perfluorodecalin, compared to photocoagulation through balanced salt citrate-buffered solution. This experimental study indicates that no extra care is necessary when retinal endophotocoagulation is performed through perfluorodecalin, as long as circular spots are obtained and energy is delivered symmetrically to the target site.

Animals↗

PubMed1991

Hypertensive choroidopathy: a case report.

The authors report a case of exudative retinal detachment of the posterior pole and peripheral choroidal detachment in a patient with renovascular accelerated hypertension. The peculiar clinical situation of this patient was comparable with experimental models of hypertension recently reported in the literature. Both the retinal and the choroidal detachment regressed after blood pressure stabilization with systemic antihypertensive therapy, supporting a choroidal pathogenesis for the chorioretinal lesions.

Aged↗

PubMed1989

[Laser treatment of macular subretinal neovascularization in angioid streaks].

The authors examined 17 eyes with macular subretinal neovascularization in angioid streaks treated by direct laser photocoagulation. Two eyes were treated with dye laser (590 nm), two with blue-green argon, three with green argon and ten with red krypton laser. At twelve-month follow-up, the visual acuity was of 0.21, a statistically significant decrease respect to the presenting vision. Poor functional results are due to the frequent recurrences of neovascularization.

Adult↗

PubMed1989

[Laser treatment of subretinal macular neovascularization in pathologic myopia].

The authors evaluated retrospectively 100 eyes with pathological myopia and a macular subretinal neovascular membranes (SRNV) which was treated with direct laser photocoagulation. Argon green, krypton red and orange dye (590 nm) laser were used to treat, respectively, 19, 63 and 18 eyes. The follow-up period was of 12 months. Mean initial visual acuity was 0.33 and mean final visual acuity was 0.31, with no statistically significative difference between them. One or more recurrence was observed in 44% of the eyes. Recurrences could be treated in 80% of cases. At the end of the follow-up period SRNV had disappeared in 83 eyes and extended into the foveola in the remaining 17.

Adult↗

PubMedDate not supplied

Laser photocoagulation of choroidal neovascularization in pathologic myopia: long-term results.

Direct laser photocoagulation of macular choroidal neovascularization (CNV) in pathologic myopia is still controversial. However, previous studies have reported encouraging results. One-hundred and thirty-three consecutively treated eyes were followed, in a prospective manner, for at least 12 months (108 of these were followed for 24 months, 84 for 36 months, 63 for 48 months, and 47 for 60 months) to evaluate the potential benefits and complications of laser treatment of extra-foveal macular CNV in pathologically myopic eyes. Pre-treatment mean visual acuity was 0.36. Post-treatment mean visual acuity was 0.33 at 1-year examination, 0.31 at 2 years, 0.32 at 3 years, 0.34 at 4 years, and 0.33 at 5 years. During the total follow-up period mean visual acuity did not change. Neovascular recurrences occurred in 58% of treated eyes by the end of the five-year follow-up. At final examination, complete destruction of CNV was achieved in 100 eyes (75%). These findings suggest that laser photocoagulation of macular choroidal neovascularization in pathologic myopia may be effective in preventing or limiting severe and irreversible loss of vision.

Adult↗

PubMedDate not supplied

Age-related macular degeneration and vitreous hemorrhage.

Age-related macular degeneration led to vitreous hemorrhage (VH) in six eyes of four patients. Macular involvement was bilateral in three patients and fluorescein angiography performed before VH showed extensive subretinal hemorrhage in the macular region in all eyes. We examine the possible causal mechanisms of VH resulting from age-related macular degeneration. Local risk factors, as outlined in our series by fluorescein angiography, are discussed and systemic risk factors are considered. Three out of the six eyes underwent pars plana vitrectomy for removal of intravitreal blood, and had severe inflammatory reactions in the postoperative period. In the three non-operated eyes spontaneous reabsorption of VH was observed at the end of follow-up.

Aged↗