Characteristics of the photoconversion of rhodopsin in the early stages of photolysis.

Low-temperature spectrophotometry was used to study the primary stages of rhodopsin photolysis. A digitonin extract of rhodopsin was irradiated at -155 degrees C with blue light of wavelength 436 nm. The stage of the bathorhodopsin --> lumirhodopsin conversion was accompanied by the simultaneous formation of several products.

Choroidal neovascularization after laser in situ keratomileusis in a patient with presumed ocular histoplasmosis syndrome.

Purpose: A 44-year-old patient with presumed ocular histoplasmosis syndrome (POHS) who developed a choroidal neovascular membrane (CNV) after laser in situ keratomileusis (LASIK) surgery is presented.

Methods: A 44-year-old male patient with moderate myopia and POHS who underwent LASIK surgery complained of distorted vision after the procedure. He had a quiet POHS lesion prior to refractive surgery.

Choroidal neovascularization after laser keratomileusis in a patient with presumed ocular histoplasmosis syndrome.

Purpose: A 44-year-old patient with presumed ocular histoplasmosis syndrome (POHS) who developed a choroidal neovascular membrane (CNV) after laser in situ keratomileusis (LASIK) surgery is presented.

Methods: A 44-year-old male patient with moderate myopia and POHS who underwent LASIK surgery complained of distorted vision after the procedure. He had a quiet POHS lesion prior to refractive surgery.

[Peculiarities of rhodopsin photoconversion at the early stages of photolysis].

The primary stages of rhodopsin photolysis were studied with the low temperature absorption spectroscopy technique. Digitonin extract of bovine rhodopsin was irradiated at -155 degrees C with blue light (436 nm). The following changes of the dark spectrum were recorded in the course of slow rise of the temperature in 1-3 degrees C steps.