trabeculectomy is the most common procedure performed in glaucoma patients to reduce intraocular pressure for a long-time period. this intervention can cause alterations in axial length (0.1-0.9 mm), anterior chamber depth (0.11±0.22 mm), and keratometry readings (1.07±1.14 diopter). these changes may linger for more than one year and may negatively affect the precision of intraocular lens powe...

BACKGROUND High astigmatisms are usually induced during corneal suturing subsequent to tissue transplantation or any other surgery which involves corneal suturing. One of the reasons is that the procedure is intimately dependent on the surgeon's skill for suturing identical stitches. In order to evaluate the influence of the irregularity on suturing for the residual astigmatism, a prototype for...

BACKGROUND Cataract surgery techniques have improved a lot over the years from couching to the latest micro-incision cataract surgery. OBJECTIVES To compare the temporal sclero-corneal and clear corneal tunnel incisions in patients undergoing manual small-incision cataract surgery (SICS) with respect to the surgically-induced astigmatism. MATERIALS AND METHODS The present study included 60 ...

A system for supporting corneal suture for minimizing induced astigmatism, due to irregular manual stitches, has been designed. The system projects 48 light spots, from LEDs, displayed in a precise circle at the lachrymal film of the examined cornea. The displacement, the size and deformation of the reflected image of these light spots analysis providies the keratometry and the circularity of t...

BACKGROUND The purpose of this study was to compare corneal power and horizontal corneal diameter (white-to-white [WTW] distance) readings obtained by the Orbscan II topographer and the iTrace aberrometer. METHODS Keratometry readings in the flat (Kf) and steep (Ks) meridians and WTW distance were measured with the Orbscan II and iTrace systems in 100 myopic patients. Statistical evaluation w...

PURPOSE To investigate repeatability of steep and flat keratometry measurements, as well as astigmatism axis in cohorts with normal range and regular astigmatic such as: eyes following laser-assisted in situ keratomileusis (LASIK) and normal population, as well as cohorts of high and irregular astigmatism such as keratoconic eyes, and keratoconic eyes following corneal collagen cross-linking, e...

Background: The study aimed to assess the wound integrity in small incision cataract surgery (SICS) by modified Siedel’s test. Material and methods: Forty eyes of 40 patients who underwent from a rural background South India were enrolled after obtaining consent along with surgical January March 2020. A complete history was taken, ocular examination keratometry performed. B-scan conducted for m...