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Biomedical subjects

R M Sinskey

Publications and source records attributed to R M Sinskey.

16 recordsLinked to original sources
PubMed1994

Induced astigmatism in a 6.0 mm no-stitch frown incision.

Fifty-five consecutive patients had cataract extraction with a 6 mm no-stitch frown incision and implantation of a 6 mm optic three-piece posterior chamber lens. Vector analysis calculations of diopters (D) of mean induced keratometric astigmatism for this incision were 0.70 D at one day, 0.76 D at one week, 0.50 D at one month, and 0.50 D at three months. The Naeser's polar value showed a mean with-the-rule astigmatism of +0.42 D at one day and -0.08 D against-the-rule astigmatism at three months. The results suggest that the 6.0 mm no-stitch frown incision induces a low postoperative astigmatism and provides a stable incision.

Adult↗
PubMed1994

Cataract extraction and intraocular lens implantation in an infant with a monocular congenital cataract.

A cataract extraction and primary capsulotomy with intraocular lens (IOL) implantation was performed on a 17-day-old infant with a monocular mature congenital cataract. The IOL power, calculated at the time of surgery, was undercorrected to compensate for the growth of the eyeball. Two additional surgical procedures were required to resolve visual axis obstruction caused by lens epithelial cell proliferation. Follow-up was 18 months, during which amblyopia prevention therapy was instituted.

Amblyopia↗
PubMed1993

Indications for and results of a large series of intraocular lens exchanges.

We conducted a retrospective review of 79 patients who had intraocular lens (IOL) explantation and exchange over a 12-year period. Seventy-nine eyes of 40 males and 39 females from 17 to 94 years of age were followed from three months to more than 12 years. Sixty-one percent (61%) were posterior chamber lenses and 39% were anterior chamber lenses replaced by 76% posterior chamber and 24% anterior chamber lenses. The indications for lens exchange were eccentric or displaced IOL (41.7%), endothelial decompensation (27.7%), incorrect IOL power (12.6%), and uveitis-glaucoma-hyphema syndrome (10.0%). Analysis of the clinical results revealed that 72% of the cases had postoperative visual acuity better than or equal to 20/30, and 8% had a loss of one or more lines of visual acuity. Among the complications occurring after IOL exchange were retinal detachment, glaucoma, corneal decompensation, and anisometropia.

Adolescent↗
PubMed1993

Long-term results of intraocular lens implantation in pediatric patients.

Between 1980 and 1990, 42 eyes of 34 patients (age range: 18 months to 18 years) were implanted with an intraocular lens, with 29 being primary implantations and 13 secondary. The primary implantation group comprised patients with congenital, developmental, and traumatic cataracts. Patients in the developmental and traumatic cataract groups achieved the best visual acuity. Those with congenital cataracts had the poorest visual outcome. Follow-up ranged from a minimum of three months to more than ten years. Overall the patients demonstrated an improvement in visual acuity and the psychological advantage of enhanced visual function without spectacles or contact lenses. We conclude that with proper case selection and a controlled, skilled surgical approach, the use of an intraocular lens for visual rehabilitation in the pediatric age group is a feasible approach.

Adolescent↗
PubMed1993

Ocular axial length changes in a pediatric patient with aphakia and pseudophakia.

Excessive eye elongation can be induced in experimental animals by visual deprivation. A tendency toward myopic refraction or shift in pediatric aphakia has been recorded in some children. In this report, we present the case of an 18-year-old patient who had developmental cataracts treated at seven years of age with bilateral cataract extraction and implantation of an intraocular lens in one eye only. Axial length of the eye with a contact lens increased compared with the eye with the intraocular lens.

Adolescent↗
PubMed1992

Intraocular lens implantation in microphthalmic patients.

Microphthalmos is a developmental disorder of the eye consisting of a smaller than normal eye. This disorder can present as an isolated condition or associated with other systemic alterations. It is not uncommon for patients with microphthalmos to have congenital cataracts along with other ocular and systemic abnormalities. This paper reports the experience with 11 microphthalmic eyes of seven patients who had primary or secondary intraocular lens (IOL) implantation over a six-year period from 1985 to 1991. In all cases the IOL had a 13.5 mm or 14.0 mm overall diameter and a 6.0 mm or 6.5 mm optic. It was difficult to obtain documentation of objective visual improvement in many of these cases because of the associated nystagmus. However, all patients reported subjective improvements. These results suggest that with proper technique and lens selection microphthalmic patients should be considered for IOL implantation with relative safety and success.

Adolescent↗
PubMed1989

Management of cataracts in children.

All children under 19 years of age who are candidates of cataract surgery must be approved by the FDA and have the pediatric protocol approved by the Investigational Review Committee. Twenty-three children who were approved by FDA received 29 Sinskey-style posterior chamber intraocular lenses. Twenty-four were primary and five were secondary posterior chamber implants. Two minor complications could be attributed to the intraocular lens. Five other complications such as an opacifying posterior capsule and one retinal detachment could have occurred in any cataract procedure. The results of this series of lens implantations in children differ from previously reported studies. This difference may be attributed to the selection of the patients (i.e., all over the age of 20 months) and to the surgery technique.

Adolescent↗
PubMed1983

Low power intraocular lenses.

We believe that implantation of low diopter power IOLs in eyes with myopia carries no apparent increased risks when the usual precautions concerning cataract surgery with implantation are observed. Axial length measurements are mandatory to choose appropriate lens power. The visual results are excellent and aniseikonia is minimized with lens implantation. Patients are satisfied with the functional results of their postoperative vision.

Adolescent↗
PubMed1978

The posterior capsule and phacoemulsification.

1. The discission rate for 268 patients with intact posterior capsules with a 32-month follow-up in 43%. 2. The discission rate for 160 patients with intact posterior capsules and IOL implants with a 20-months follow-up in 20%. 3. To open or not open the posterior capsule at the time of surgery should be decided by the surgeons using these consistent statistics.

Cataract Extraction↗