Acanthamoeba keratitis, infectious crystalline keratopathy and atypical mycobacterial keratitis have recently emerged as important types of infectious keratitis. These corneal infections have been associated with contact lens wear and with corneal surgical procedures such as radial keratotomy and penetrating keratoplasty, and the clinical setting of each of these infections is important in alerting the clinician to the possible diagnosis. There have been improvements in rapid diagnostic techniques for such infections in the last several years. Treatment has also improved, but remains a difficult problem, especially for Acanthamoeba. An overview of recent developments in the clinical and histopathologic methods for diagnosis and treatment options of these three corneal infections is provided.

We used anterior capsular support for posterior chamber intraocular lenses (PC IOLs) in fourteen eyes with large posterior capsular ruptures. An endocapsular technique preserved the anterior capsule and facilitated implantation. With a median follow up of 8.5 months, all patients had a visual acuity of 6/9 or better. One lens was lost in the vitreous and one patient had a clinically significant cystoid macular edema. In the event of a posterior capsular rupture we suggest this technique as an alternative to anterior chamber or scleral-fixated lenses

We report our experience with the use of Argon laser photocoagulation for the treatment of recurrent pterygia. In this study, 36 patients and 42 eyes with recurrent pterygia having undergone previous surgery one or more times, were subjected to laser therapy. The patients were followed up for a period of 9-12 months. The success rate was 92.8% when laser therapy was employed in recurrent pterygia which were excised once, while it was 64.2% in cases where excisions were done two or more times. Argon laser treatment is a safe and effective method of therapy for recurrent pterygia.

Acetone has been considered a quick, effective and less expensive chemical sterilising agent and continues to be used by ophthalmic surgeons, at least in developing countries. Its utility however has been questioned recently. This study was designed to assess the efficacy of acetone against Pseudomonas aeruginosa, Bacillus subtilis and Aspergillus flavus present on ophthalmic surgical instruments (forceps, sutures). The instruments were contaminated by immersion in standard suspensions of the organisms and thereafter were either unwashed (group-I), washed and dried (group-II) or only washed (group-III) before immersion in acetone. The exposure to acetone was kept at 3, 10 and 20 minutes in each group. The results showed that acetone could eliminate Pseudomonas (vegetative bacteria) after 10 minutes exposure in unwashed group and 3 minutes exposure in washed groups. It was ineffective against spore bearing bacteria (B. subtilis) and fungus (Aspergillus flavus) even after 20 minutes of exposure

The data consists of sixty probands affected with Retinitis pigmentosa. Syndromic cases were found in five percent of the RP probands. Segregation analysis was carried out on proband sibship data. The ascertainment probability was estimated at 0.5517. Analysis of the data by parental mating types of proband sibships indicated the presence of dominant forms of RP (2.05%). Analysis of proband sibships indicated the presence of low risk families in the Normal x Normal matings (45%) and in the consanguineous matings (40%). The hypothesis of recessive inheritance could be confirmed only in multiplex sibships (p = 0.383 +/- 0.0793). Data on proband matings though incomplete conformed in general to autosomal recessive gene hypothesis.

Current techniques of rhegmatogenous retinal detachment repair allow most detachments to be repaired successfully. The success of repair depends on a careful pre-operative examination and choice of an appropriate procedure. The surgery is usually tailored to individual needs. Improvements in surgical techniques coupled with a better understanding of the pathophysiology of rhegmatogenous retinal detachment continue to improve the anatomic and functional success of retinal detachment repair.