Search PubMed⌕ Search

Biomedical subjects

V K Dada

Publications and source records attributed to V K Dada.

At least 55 records · Page 3Linked to original sources
PubMed1990

Argon laser suturotomy: a technique for the correction of surgically induced astigmatism.

We prospectively studied 40 eyes with intraocular lenses and astigmatism of 4 or more diopters to evaluate the efficacy and safety of argon laser suture ablation as contrasted with surgical suture removal. Two groups of 10 eyes underwent argon laser suturotomy (ALS) 4 and 6 weeks, respectively, after surgery. Sutures were removed surgically in a third group of 10 eyes 6 weeks after surgery. The final group of 10 eyes served as controls. Serial keratometry and refraction demonstrated that ALS was as effective as surgical suture removal in reducing postoperative astigmatism, and complications associated with the procedure were negligible.

Aged↗
PubMed1990

Pupillary dilatation during cataract surgery--relative efficacy of indomethacin and flurbiprofen.

In a prospective, randomized, double-blind trial, we evaluated the relative efficacy of indomethacin and flurbiprofen when used as adjuvants to routinely used mydriatics for maintenance of pupillary dilatation in patients with heavily pigmented iris undergoing extracapsular cataract extraction. The drugs were administered orally as well as topically according to a fixed regimen. The pupillary diameters, measured with calipers at various surgical steps, were significantly larger at every step in the study groups in which either of the adjuvants had been used than they were in the control group (P less than .001). Flurbiprofen tended to help maintain a larger pupillary diameter in the later stages of surgery than indomethacin, but this difference was not statistically significant. We conclude that it is important to use prostaglandin synthetase inhibitors as adjuvants to routine mydriatics, and that flurbiprofen may be somewhat more effective than indomethacin in this capacity.

Cataract Extraction↗
PubMed1988

Comprehensive visual and cosmetic rehabilitation of cornea plana.

A case of bilateral cornea plana with high hypermetropia is reported in a 20-year-old woman. Neither routine spectacles nor polymethylmethacrylate (PMMA) contact lenses could achieve satisfactory visual and cosmetic results. Comprehensive visual and cosmetic rehabilitation was accomplished with a high-plus, low-water-content, lenticular soft lens. This new concept of management of cornea plana appears promising in cases not amenable to routine spectacles or hard contact lenses.

Adult↗
PubMed1984

Corneomalacia perforans in a patient with rheumatoid arthritis.

Bilateral corneomalacia perforans occurred in a young woman who had had rheumatoid arthritis for 7 years. The perforations appeared to be precipitated by systemic corticosteroid therapy. The only symptom was a sudden loss of vision. Conservative treatment - withdrawal of the steroid therapy and application of soft contact lenses for 3 weeks - resulted in complete healing of the perforations and a marked increase in visual acuity.

Adult↗
PubMed1976

Preventable hazard of soft lens wear.

Recurrent pseudomonal conjunctivitis, caused by poor soft contact lens care and the use of contaminated saline, is described. This problem can easily be avoided by proper sterilization, with boiling being the method of choice.

Adult↗
PubMed1975

Visual acuity improvement in eyes with corneal scars fitted with contact lenses.

The vision of 190 eyes of 130 patients with corneal scars was tested with contact lenses, of which 166 eyes subsequently were fitted with contact lenses. Over 75% of all eyes with corneal scars showed a visual acuity improvement to 6/12 or better. All eyes with a nebular or macular corneal scar and an initial visual acuity of 6/60 or better improved to 6/12 or better. The visual acuity of 77% of the eyes fitted with contact lenses, compared to the visual acuity of 36% of the same eyes obtained with spectacle lenses, improved to 6/12 or better.

Adolescent↗
PubMedDate not supplied

Management of posterior capsule tears.

Any breach in the continuity of the posterior capsule is defined as a posterior capsule tear. Posterior capsule tears can be preexisting (congenital or traumatic), spontaneous, or intrasurgical. Preexisting/congenital posterior capsule tears have been related to an intrauterine insult. Posterior capsule tears due to trauma may occur as a consequence of direct mechanical impact due to perforation or blunt injury. Depending on the duration of time between the posterior capsular trauma and the cataract surgery, these posterior capsule tears can have different features. Intrasurgical posterior capsule tears are the most common and can occur during any stage of cataract surgery. Also, they may be planned in the form of primary posterior capsulorhexis. The conventional management consists of prevention of mixture of cortical matter with vitreous, dry aspiration, and anterior vitrectomy, if required. In addition, during phacoemulsification low flow rate, high vacuum, and low ultrasound are advocated if a posterior capsule tear occurs. Dislocated nucleus or nuclear fragments require vitrectomy and the use of perfluorocarbon liquids. In the presence of a posterior capsule tear, the IOL can be placed in the sulcus, if the capsular rim is available, or in the bag, if the tear is small. Scleral fixated posterior chamber lenses and anterior chamber IOLs can be implanted when the posterior capsule tear is large.

Eye Injuries↗
PubMedDate not supplied

Polymicrobial keratitis after laser in situ keratomileusis.

PURPOSE: To report a case of polymicrobial infectious keratitis in one eye of a patient who had undergone bilateral simultaneous laser in situ keratomileusis (LASIK). METHODS: A 21-year-old healthy female developed infectious keratitis in her right eye after bilateral LASIK surgery. Material obtained from the infective foci was sent for bacterial and fungal cultures and herpes simplex virus antigen detection, and broad spectrum antimicrobial therapy was instituted. RESULTS: Staphylococcus epidermidis and Fusarium solani were detected on culture and herpes simplex virus antigen was found to be positive. The patient did not respond to medical therapy and subsequently the ulcer perforated. A therapeutic keratoplasty was performed and the final best-corrected visual acuity was 20/40, 1 month after keratoplasty. CONCLUSION: Polymicrobial infectious keratitis, although rare, is a potential sight-threatening complication of LASIK.

Adult↗
PubMedDate not supplied

Petalloid phacoemulsification.

Hard grade IV nuclei are difficult to emulsify without causing additional stress on the zonular apparatus. We herein, describe a method to accomplish successful phacoemulsification in hard cataracts. This technique of "petalloid phacoemulsification" consists of partial central debulking, followed by sequential chopping to create petal-shaped nuclear fragments emanating from the partially debulked center. The rim of the petals are emulsified followed by the emulsification of the central disc and the base of the petal. Twenty eyes with grade IV nuclei underwent uncomplicated petalloid phacoemulsification. The mean phaco time was 1.02 +/- 0.06 minutes and mean percentage endothelial loss was 4.2 +/- 0.8%. Petalloid phacoemulsification is a safe and useful technique in cases of hard cataracts.

Humans↗