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Biomedical subjects

M G Grand

Publications and source records attributed to M G Grand.

66 records · Page 4Linked to original sources
PubMed1979

An experimental model for the evaluation of vitrectomy instruments.

A scleral window was designed for implantation in human autopsy eyes. This model provides direct visualization of the pars plana, vitreous base and peripheral retina. Using this model, one can directly observe vitrectomy instruments entering the globe, and can evaluate the cutting ability of a variety of instruments. The model can also be used to provide practical experience, analogous to clinical vitrectomy, and is therefore useful as a training device.

Cadaver↗
PubMed1978

Ocular injuries from exploding beverage bottles.

Exploding glass bottles filled with carbonated beverages cause serious ocular injuries that have not received adequate attention in ophthalmic publications. All three patients described in this article had corneal lacerations and traumatic cataracts developed. One patient was left with an inoperable retinal detachment. Beverage bottles may explode with normal handling and without provocation. Manufacturing standards have just taken effect that may help to eliminate defective bottles. The addition of plastic sleeves to beverage bottles and the use of plastic shatterproof bottles also reduce the hazard of explosions and high velocity fragments. It is advisable to avoid subjecting beverage bottles to undue heat and agitation and to direct the cap away from the face when opening the bottle.

Adult↗
PubMed1975

Aphakic retinal detachment. Management of the fellow eye.

One hundred eighty-five patients with unilateral aphakic retinal detachment were studied to determine the frequency of retinal detachment in the fellow eyes undergoing cataract surgery. It was found to be four times higher than the frequency in those eyes that remained phakic (26% vs 7%). Despite the high incidence of detachment, 94% of the aphakic group had a final visual acuity of 20/60 or better in the second eye. At the time of surgery, the macula was still attached in only 17% of the 185 first eyes as compared to 57% of the 21 second eyes that developed an aphakic retinal detachment.

Adult↗
PubMedDate not supplied

Choroidal osteoma. Treatment of associated subretinal neovascular membranes.

Treatment of subretinal neovascular membranes associated with choroidal osteomas is described. Early recognition of the membranes, aided by Amsler grid self-assessment, allowed initiation of photocoagulation treatment while the lesions were still extrafoveal. In one patient, initial treatment was performed with the argon green laser and subsequent treatments were applied with the krypton red laser. In two other patients, argon-laser photocoagulation alone was used to destroy subretinal neovascular membranes. Post-treatment evaluations in one patient demonstrated persistence of recurrence of neovascular tissue and allowed for prompt retreatment. Follow-up evaluations have shown that treatment resulted in persistent destruction of the subretinal neovascular membrane in two patients, with stabilization of vision at 20/25- and 20/100, respectively. In one patient, vision has been stable at 20/50 for 6 months; however, a recurrent subretinal neovascular membrane developed, encroaching through the fovea with resultant visual loss of 20/60.

Adult↗