Optical aberrations in patients with recurrent herpes simplex keratitis and apparently normal vision.

Aims: To analyse high-order aberrations (HOA), modulation transfer function (MTF) and Strehl ratio in patients with a history of herpes simplex keratitis (HSK) and apparently normal vision.

Methods: Fifteen patients with a history of recurrent unilateral HSK and normal Snellen visual acuity (0 logMAR) were enrolled. Eyes with HSK (HSK group) were statistically compared with normal fellow eyes (Control group).

Combination of the Schirmer I and phenol red thread tests as a rescue strategy for diagnosis of ocular dryness associated with Sjögren's syndrome.

Purpose: To define a combination of the Schirmer I and phenol red thread (PRT) tests that improves the screening of patients with ocular sicca syndrome.

Methods: The PRT test was performed before (PRT1) and after (PRT2) the Schirmer I test, in both eyes of 143 patients complaining of ocular dryness secondary to Sjögren's syndrome or sicca asthenia polyalgia syndrome (SAPS; 72 and 71 patients, respectively), and in 40 control patients. Groups were matched by age and sex.

[The effects of medications on the eyes].

The visual system is very sensitive to side effects of medicines, either regarding systematic complications of eye drops or ocular complications following oral or intravenous treatments. For the latter, ophthalmologic regular monitoring is mostly the best preventive measure since most of iatrogenic abnormalities are reversible after ruling out the treatment. However, some ocular complications are poorly reversible, as for example with antimalarial drugs or vigabatrin.