Biomedical subjects

R A Chanis

Publications and source records attributed to R A Chanis.

3 recordsLinked to original sources

PubMed1995

[Excimer laser refractive surgery].

The authors report their results of refractive surgery with Excimer Laser Panama (Technolas unit) on 711 eyes with refractive errors. An uncorrected visual acuity of 20/30 or better was obtained in 98.9% of myopic patients. In hypermetropic patients they obtained a visual acuity of 20/40 or better in 95.9%. In 94.7% of astigmatics an uncorrected visual acuity of 20/30 or better was achieved. The patients did not complain of disturbances common after other refractive procedures, such as bright radiant spots, blinding glare of fluctuating vision. Secondary effects were minimal and patient satisfaction was very high.

Adolescent↗

PubMed1993

[Phacoemulsification. Towards a cataract surgery without sutures].

The surgeon presents the results of the first phacoemulsification procedures he performed. The procedure includes capsulorhexis and phacoemulsification within the bag in the posterior segment. This technique results in safe fixation of the intraocular lens implant in the bag.

Adult↗

PubMed1991

[Uveitis, glaucoma and hemorrhage syndrome caused by hard lenses in the posterior chamber].

A study was made of twelve cases with uveitis, glaucoma and hyphema (UGH) caused by rigid intraocular posterior chamber implants. Three of these patients were female and nine were males. The syndrome started in 75% of the cases two years after having been operated. The patients were followed for an average time of 42 months. Four patients responded to medical treatment. Eight patients required surgery. This syndrome is caused by the irritation and escoriation of the ciliary body at the inferior point which supports the hard lens. Serious complications arise from the removal of the lens. The author obtained good results in treating these patients with selective diathermy of the ciliary body under a scleral flap.

Aged↗