Primary Modified Predescemetic Deep Anterior Lamellar Keratoplasty in Acute Corneal Hydrops.

Purpose: To report primary treatment of acute corneal hydrops (CH) with a modified technique of predescemetic deep anterior lamellar keratoplasty (pdDALK).

Methods: This prospective interventional case series included 9 eyes with acute CH that underwent pdDALK as primary treatment. Technique modifications included a bevel-up needle, creating tissue emphysema as a guide for dissection, using small aliquots of air directed away from break, manual deeper dissection using a blunt dissector, centripetal dissection leaving the area of Descemet membrane (DM) break for last, retention of minimal stroma above DM tear, and tamponade of DM tear with air in the anterior chamber.

Corneal Allogenic Intrastromal Ring Segments (CAIRS) Combined With Corneal Cross-linking for Keratoconus.

Purpose: To describe a new technique for the treatment of keratoconus using corneal allogenic intrastromal ring segments (CAIRS).

Methods: CAIRS trephined from donor cornea using a double-bladed trephine were implanted into mid-depth femtosecond laser-dissected channels in the cornea of patients with keratoconus in the 6.5-mm optic zone, followed by accelerated corneal cross-linking (A-CXL)-either conventional or contact lens-assisted CXL (A-CACXL), depending on minimum corneal thickness.

Preliminary Evidence of Successful Near Vision Enhancement With a New Technique: PrEsbyopic Allogenic Refractive Lenticule (PEARL) Corneal Inlay Using a SMILE Lenticule.

Purpose: To describe a new technique (PrEsbyopic Allogenic Refractive Lenticule [PEARL] inlay) using an allogenic corneal inlay prepared from a small incision lenticule extraction (SMILE) lenticule.

Methods: A SMILE lenticule of specified thickness (mean: 61.5 ± 3.