Expect your initial consultation with David Gartry to be very brief, without even a vision test, for which he relies on the data provided by your optician. You may also have to be proactive as he did not volunteer information on the likelihood of complications, but was happy to answer questions.
He did explain, however, that the treatment will not give you BETTER sight than you currently have with glasses/contact lenses, merely (if successful) reduce/eliminate the need for corrective lenses to get to that level of sight.